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T-PRO 8700 Manual - ERLPhase Power Technologies Ltd.

1. SS zle S Stk cence LJE oo H V wan hn no er ro erro Mino or r0 0 Lem Ye 110 V ro Ys V sro V cro 0 ino ER spejuco Paps NM sydu amgiedus nding 4b 94 SK yi EH cH He OH MOL S 4 BOL SOL OL O AL Wi Nok id kd 0000000 x xD KOS om qe equo qep o raddakaaddapaadaaaa F 5 F z F io Pan E YOS c KORAN PORT 3 i Penn 4 F ET EIS EIS EIS EIS EIS EIS EIS 3 pigi Mad zd tekli 0pd ongar ii Oaz IL MAGEE iL casa TL nanga TL OGASZL JI OMSZL JI OGASZL ji OM Pepe o Bottom Figure H 2 Vertical Mount Rear Panel D01386R04 20 T PRO User Manual 8700 Appendix H 2 Appendix AC Schematic Drawing pepunof g 48443260 peuous eq pinoys syndul jueuno pasnun sosodind GUIPJODA JOJ seounos JAUJO O pejoeuuoo eq UPI G pue p g sadu peyinbey eje sindur yue uno Z uey asou Ou j API BU utum euop eie sjuaujsnipe epniiu au pue aseyd Z pepeeu se G pue pi eit sindul LO 0 pejoeuuoo eq pam sdu BAM Jo ejjep peuinbeu eye sdu jueuno Z uey aJou JI
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3. Name Symbol Value Unit Range Ii Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 c 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 12 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 c 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED TOEWS Transformer Overload Early Warning System TOEWS Enabled THS Temperature Hot Spot Trip Setting 150 0 go 70 0 to 200 0 THS To Start LOL Loss of Life Calculation 140 0 C 70 0 to 200 0 LOL Trip Setting 2 0 days 0 5 to 100 0 24INV Inverse Time 24INV Enabled K 0 10 0 10 to 100 00 Pickup 1 20 pu 1 00 to 2 00 Reset Time 0 50 s 0 05 to 100 00 24DEF Definite Time Delay 24DEF Enabled Pickup 1 20 pu 1 00 to 2 00 Pickup Delay 0 05 s 0 05 to 99 99 59N Zero Seguence Overvoltage T PRO User Manual 8700 D0138
4. S9 ON sabe Ov synduy jueuno 2v eee ZE lee OE Get ge Ze eE S wee ece ge LE Oc GE BIE ME OE GLE E EIE ZIE LLE OLE 60 80 40 90 We KME ME ME WE OE N 97 S va Soy 901 Sar Sai Svi Sw toj Vor Val Fai Yu vi Eo Ea fai Ear 8vi Evi Zo 201 ai g w em boi ton bar ba Ivi vi T T T T T T S MdUL LO NUI LO e ndul 19 T E TI I ir 5 CIN 2 T I3 el Li I I z uu i3 E g I 13 ci SPS AH d I ih li lt m E Li Y SO PS ALON 13 e 2 9DS AH V RS Y uogeanDyuoc uy JauuojsueJ DEM XJ UI UI resi CA CA CO f m Figure 1 1 T PRO AC Schematic Appendix I 1 T PRO User Manual 8700 D01386R04 20 Appendix J DC Schematic Drawing Output Relay Cortacts Inoperative Hut Ou Ou Ou4 Ou5 Out Out OB Out9 Out10 Outll Out12 Out 3 Outl4 ees a el id d pad sid d id A T sai ET EL ax asl a xol 211 ad ad a ad zl zl zd zl zd 8 8 Figure J 1 T PRO DC Schematic D01386R04 20 T PRO User Manual 8700 In9 T In8 In7 In6 In2 In3 IM External Inputs 90 150 VDC range Ind 100 102 104 106 108 110 112 114 116 Isolated 30VDC supply Int 234 Temperature Inputs 4 20 mA current loop 101 103 105 107 109 111 13 115 117 231 1 IRI
5. 15b Magnitude 293 A 1 15b Angle 294 Degrees 10 I5c Magnitude 295 A 1 I5c Angle 296 Degrees 10 HVa Current Magnitude 297 A 1 HVa Current Angle 298 Degrees 10 HVb Current Magnitude 299 A 1 HVb Current Angle 300 Degrees 10 HVc Current Magnitude 301 A 1 HVc Current Angle 302 Degrees 10 LVa Current Magnitude 303 A 1 LVa Current Angle 304 Degrees 10 LVb Current Magnitude 305 A 1 LVb Current Angle 306 Degrees 10 LVc Current Magnitude 307 A 1 LVc Current Angle 308 Degrees 10 TVa Current Magnitude 309 A 1 TVa Current Angle 310 Degrees 10 TVb Current Magnitude 311 A 1 TVb Current Angle 312 Degrees 10 TVc Current Magnitude 313 A 1 TVc Current Angle 314 Degrees 10 la Operating 315 A 1 Ib Operating 316 A 1 Ic Operating 317 A 1 la Restraint 318 A 1 Ib Restraint 319 A 1 Ic Restraint 320 A 1 Frequency 321 Hz 100 DC1 322 MA 100 DC2 323 MA 100 HV Current 324 p u 100 LV Current 325 p u 100 TV Current 326 p u 100 TOEWS Minutes to trip 327 Minutes 1 Self Check Fail Parameter 328 N A 1 Ambient Temperature 513 C 10 Top Oil Temperature 514 C 10 Hot Spot Temperature 515 C 10 Loss of Life 516 p u 100 T PRO User Manual 8700 D01386R04 20 Appendix E Modbus RTU Communication Protocol Pickup Level 517 p u 100 THD 518 100 Accumulated IA la t 519 KA KA S 10 Accumulated IB IB t 520 KA KA S 10 Accumulated IC IC t 521 KA KA S 10 Accumulated Through
6. Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 c 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 05 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 6 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 7 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 8 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 T PRO User Manual 8700 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropou
7. I 5 l35pu I Vamps I VbaseSec X I Vperunit 1 004 x 1 35 1 3564 6 38 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide Summary of Calculations for Testing Minimum Restraint Current IR min High Side 230 kV Low Side 115 kV HV Current Value HV Current Value 1 65 per unit 1 35 per unit Convert to Amps Convert to Amps 1 65 x 1 004 1 35 x 1 004 HV Test Current 1 657 A LV Test Current 1 356 A Test for IR IRs 5 0 per unit S2xIR S1 82 5 IO Tm 108 x IRs 40x5 20 40 10 00 100 gt IO 1 0pu Therefore IRs 5 0 per unit and IO 1 0 per unit Solving for Iyy and ly IO Igy lpy 1 0 lyy liy IR ny dy 2 50 ny FIL 2 50x2 Lacy 10 0 PN Iy T PRO User Manual 8700 6 39 6 Acceptance Protection Function Test Guide 6 40 Solve for Ijy by adding the two equations together LO apela 410 0 InytIpy Total 11 0 27 11 0 o Igy 5 5pu vamps THY Basesec X Ipyperunit 1 004 x 5 5 5 5224 Now solve for Ij y by subtracting the two equations 1 0 Iyy lzy 10 0 Ig Ly Total 9 0 2 9 0 HUY Iy 4 5pu I 1 004 x 4 5 4 524 LVamps I LVBaseSec X I LVperunit T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide Summary of Calculations for IRs Testing 5 0 per unit High Side 230 kV
8. 66 3 The following characters are not allowed in the above setting parameters ui sp Hi E MM e Epod TET and mem Load From Offliner You can download the settings file into the relay using the terminal mode menu 1 On the Window s desktop double click T PRO Offliner Settings icon The initial Offliner Settings screen appears Enter the required settings 3 Save the settings to a file on your PC 4 Startthe Terminal Mode of T PRO login as change or service then access the Settings menu and activate Load from Offliner function 5 Reply Yes to the Ready to load remote setting prompt In your terminal program initiate transfer of the setting file created in step 2 above For example with HyperTerminal you would select Transfer then Send File Browse to find the file then select Open and finally Send 7 When the file has been transferred verified and loaded a message New settings loaded and secure is displayed T PRO User Manual 8700 3 9 3 Using the IED Getting Started Metering 3 10 A serial number discrepancy message may appear This is to en sure that you are aware of the exact relay to which the settings are being loaded If this happens check the relay serial number using the terminal mode ID menu item Type this serial number into the T PRO Serial No box in the Identification tab display area of Offlin er Settings Alternately you may check the Ignore Serial Number check box to bypas
9. Comments Software Setting Station Station Number Settings v8 Comments Setting Name Default Settings Date Created Modified 1999 03 22 11 50 00 Station Name Station Name Location Location Bank Name TBS Unique relay serial number Nominal System Frequency set to either 50 Hz or 60 Hz Nominal CT Sec Current set to either 1Aor5A Figure 5 5 Relay Identification The first screen presents all the menu items in the left menu tree You can ac cess the menu items by clicking the tabs at the top of the screen or the item on the left menu tree Identification Settings Version Indicates the version number Ignore Serial Number Enable disable Serial Number Available at back of each relay Unit ID User defined up to 20 characters Nominal CT Sec Current SAor1A Nominal System Frequency 60 Hz or 50 Hz Comments User defined up to 78 characters Setting Software Setting Name User defined up to 20 characters Date Created Modified Indicates the last time settings were entered Station Station Name User defined up to 20 characters Station Number User defined up to 20 characters Location User defined up to 20 characters Bank Name User defined up to 20 characters T PRO User Manual 8700 D01386R04 20 5 Offliner Settings Software
10. Important Note Nominal CT Sec Current can be set to either 1 Aor 5 A Nominal System Freguency can be set to either 50 Hz or 60 Hz Ensure setting selection matches that of target T PRO The serial number of the relay must match the one in the setting file or the setting will be rejected by the relay This feature ensures that the correct setting file is applied to the right relay You can choose to ignore the serial number enforcement in the iden tification screen The relay only checks for proper relay type and set ting version if the ignore serial number has been chosen Analog Inputs Analog Input Names vA votageA ooo satja sis A sid rss mr ve votagec efa lez c2 lA 3 143 IA 4 ling IA S jas ip 3 3 B4 164 as ies IC 3 IC3 IC 4 IC4 IC 5 ic5 Temp1 DC1 Temp2 DC2 Figure 5 6 Analog Inputs Identify all ac voltage and current inputs to the relay These names appear in any fault disturbance records the relay produces Analog Input Names Voltage Inputs VA VB VC Current Inputs IA1 IB1 IC1 IA2 IB2 IC2 IA3 IB3 IC3 IA4 IB4 IC4 lA5 IB5 IC5 Temp Inputs Temp 1 Temp 2 T PRO User Manual 8700 5 7 5 Offliner Settings Software 5 8 External Inputs External Input Names a See gler E a Sorea ooo s spres 05 5 e 5eae5 7 7 Spare7 50 glsaes 7 g Spass 0 50 Figure 5 7 External In
11. ERL T PRO Transformer Protection Relay Model 8700 User Manual Version 4 2 Rev 0 Preface Information in this document is subject to change without notice 2013 ERLPhase Power Technologies Ltd All rights reserved Reproduction in any manner whatsoever without the written permission of ERLPhase Power Technologies Ltd is strictly forbidden This manual is part of a complete set of product documentation that includes detailed drawings and operation Users should evaluate the information in the context of the complete set of product documentation and their particular applications ERLPhase assumes no liability for any incidental indirect or conseguential damages arising from the use of this documentation While all information presented is believed to be reliable and in accordance with accepted engineering practices ERLPhase makes no warranties as to the completeness of the information All trademarks used in association with B PRO F PRO L PRO ProLogic T PRO TESLA TESLA Control Panel RecordGraph and RecordBase are trademarks of ERLPhase Power Technologies Ltd Windows is a registered trademark of the Microsoft Corporation Procomm is a registered trademark of Symantec HyperTerminal is a registered trademark of Hilgraeve Modbus is a registered trademark of Modicon Contact Information D01386R04 20 ERLPhase Power Technologies Ltd Website www erlphase com Email info erlphase com Techni
12. Predicts excessive loss of life to thirty minutes in advance Both of these are based on the availability of an adequate thermal model of the transformer for details see Top Oil and Hot Spot Temperature Calculation in Appendix N To use this feature the relay must have an ambient temperature probe available from ERLPhase Excessive Hot Spot Temperature Warning Enabling this feature hot spot temperature is calculated at every time step five seconds into the future The assumption is that the load current and ambient temperature do not change If this calculation indicates that the hot spot temperature exceeds its trip set ting the following happens 15 minute warning alarm is activated if the calculated time is fifteen min utes or less 30 minute warning alarm is activated if the calculated time is between thir ty minutes and fifteen minutes Trip output is activated if the calculated time is zero The actual time to trip in minutes is also available 30 29 1 0 minutes If the time to trip is greater than 30 minutes the display value is 4444 Excessive Loss of Life Warning This feature overcomes a difficulty with simple over temperature as an indica tion of overload If the hot spot temperature trip setting is 140 C and the temperature hovers at values just below that level then damage to the cellulose insulation occurs but no trip Also if the temperature briefly exceeds the setting le
13. Figure 4 17 ProLogic ProLogic Setting Functions Name Give the ProLogic a meaningful name Pickup Delay Delay time from pickup to operate Dropout Delay Delay time from dropout to a ProLogic status of low A B C D E Relay elements as input statements Operators Boolean type logic gates T PRO User Manual 8700 4 29 4 Protection Functions and Specifications Recording Functions Fault Recorder Trend Recorder 4 30 The T PRO Relay provides numerous recording and logging functions includ ing a fault recorder a trend log and an event log to analyze faults to know the performance of the relay and to observe the status of the protected device Fault recording captures the input signal waveforms and other derived guanti ties when a fault or an abnormal situation occurs The relay determines this by allowing the functions in the Output Matrix to enable the Recording or fault record option Obtain this information by uploading the records from the relay using the terminal mode file transfer process and view them with RecordBase View Up to a total of 15 seconds of information can be stored with automatic overwrite of the oldest data The guantities recorded are 18 analog channels 3 voltages and 15 currents in secondary volts and am peres respectively 96 samples cycle up to the 25th harmonic 9 external digital inputs 96 samples cycle 6 derived analog channels 3 operating currents 3 restraint
14. T PRO User Manual 8700 Appendix F 7 Appendix F DNP3 Communication Protocol TVc Current Magnitude 56 A 1 2 2 Nomina TVc Current Angle 57 Degrees 10 2 0 5 Degrees la Operating 58 A 1 2 2 Nomina Ib Operating 59 A 1 2 2 Nomina Ic Operating 60 A 1 2 2 Nomina la Restraint 61 A 1 2 2 Nomina Ib Restraint 62 A 1 2 2 Nomina Ic Restraint 63 A 1 2 2 Nomina Frequency 64 Hz 100 2 0 05 Hz DC1 65 MA 100 2 0 24mA DC2 66 MA 100 2 0 24mA HV Current 67 p u 100 2 0 02 LV Current 68 p u 100 2 0 02 TV Current 69 p u 100 2 0 02 Ambient Temperature 70 e 10 2 0 5 Top Oil Temperature 71 c 10 2 2 Hot Spot Temperature 72 c 10 2 3 Loss of Life 73 100 2 0 02 51 Pickup Level 74 p u 100 2 0 02 THD 75 100 2 0 25 TOEWS Minutes to trip 76 Minutes 1 2 0 5 Minutes Self Check Fail Parameter 77 N A 1 2 0 5 Accumulated IA IA t 78 kA kAs 1000 2 0 001 Accumulated IB IB t 79 kA kA s 1000 2 0 001 Accumulated IC IC t 80 kA kA s 1000 2 0 001 Accumulated Through Fault count 81 N A 1 2 1 Appendix F 8 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix F DNP3 Communication Protocol Object 110 111 Octet String for Event Log access Object 110 and Object 111 are Octet String objects provide access to the Event Log text of the relay These objects are described in Technical Bulletin 9701 004 zip 71 available from the DN
15. 27 2 Alarm High Output Contact 4 Closed 4 Turn voltages off End of 27 test T PRO User Manual 8700 6 13 6 Acceptance Protection Function Test Guide 81 Over Under Settings Frequency Test 81 1 Over Frequency Pickup 61 Hz 81 2 Over Frequency Rate of Change 0 1 Hz sec 81 3 Under Frequency Pickup 59 Hz 81 4 Under Frequency Rate of Change 0 1Hz sec All Time Delays 0 2 seconds 81 1 Frequency or Df Dt 200 ms Vpos gt 0 25 pu or 5 V 81 2 Freguency or Df Dt 200 ms Vpos gt 0 25 pu or 5 V 0 81 3 Frequency or Df Dt 200 ms Vpos gt 0 25 pu or 5 V 4 0 81 4 Frequency or Df Dt Out 13 0 200 ms Vpos gt 0 25 pu or 5 V 0 Figure 6 13 Logic Over Under Rate of Change of Frequency 81 81 Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic 2 Monitor the following elements for pickup 81 1 Trip 81 3 Trip 3 Apply balanced 3 phase nominal voltages to the T PRO terminals Ph A 330 66 4 V Z0 Ph B 331 66 4 V Z 120 Ph C 332 66 4 V t120 Ph N 333 4 Slowly ramp less than 0 1 Hz sec the 3 phase voltage freguency up to wards 61 Hz At 60 99 61 01 Hz 81 1 High 81 3 Low Output Contact 13 Closed 5 Slowly ramp greater than 0 1 Hz sec e g 0 05 Hz sec the 3 phase volt age freguency down towards 59 Hz
16. 6 14 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide At 58 99 59 01 Hz 81 3 High 81 1 Low Output Contact 13 Closed 6 Turn voltages off 81 1 Low 81 3 Low Output Contact 13 Open End of 81 test rea N Neutral Settings Instantaneous and SON Pickup 5 0 A Test SIN Pickup 2 0 A Time Curve IEEE Extremely Inverse A 5 64 B 0 0243 p 2 TMS lt 5 0 50NHV Enabled _ Tp Out 13 50HV 310 0 Out 8 51NHV Enabled 4 51HV 310 Figure 6 14 Logic Neutral Instantaneous and Time Overcurrent 50N 51N 50N and 51N Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 51N Alarm 2 Apply one phase current to the T PRO terminals as follows Ph N 324 325 1 8 A ISA is the input for HV neutral 3 Slowly ramp the current up At 1 95 to 2 05 A expect 2 00 A 51N Alarm High Output Contact 8 Closed 4 Continue to raise current At 4 90 to 5 10 A expect 5 00 A 50N Trip High Output Contact 13 Closed 5 Turn currents off 5IN Alarm lt Low 50N Trip Low D01386R04 20 T PRO User Manual 8700 6 15 6 Acceptance Protection Function Test Guide 67 Directional Time Overcurrent Test 6 16 Contacts 8 and 13 Open Timing Test 1 Monitor timer stop on Output Contact 3 2 Set timer start from one phase 0 0 amp to 8 00 A transition This eguates
17. fault 4 30 trend 4 30 records 3 11 relay functional 3 2 retrieve to Offliner 3 10 S SCADA 2 8 3 12 sending a new setting file 5 4 service 3 2 service access 3 13 setting summary 5 16 setting the baud rate 2 7 settings 3 9 settings and ranges B 1 setup 3 12 single phase slope test 6 44 specifications A 1 start up 3 1 system reguirements 5 1 hardware 5 1 operating system 5 1 T temperature ambient 5 12 scaling 5 12 top oil 5 12 terminal mode 3 5 3 7 terminal program setup 2 5 test 24 overexcitation 6 10 T PRO User Manual 8700 27 undervoltage 6 13 49 thermal overload 6 21 49 TOEWS 6 22 50 51 overcurrent 6 19 50N 51N neutral overcurrent 6 15 51ADP adaptive pickup 6 19 59N zero seguence overvoltage 6 11 60 loss of potential 6 9 67 directional time overcurrent 6 16 81 over under freguency 6 14 87 2nd harmonic restraint 6 28 87 differential 6 24 87 high current setting 6 29 87N differential 6 31 ambient temperature 6 20 THD alarm 6 30 top oil temperature 6 20 test mode 3 2 test setting file 6 5 Testing external inputs 6 3 output relay contacts 6 3 testing procedures 6 1 THD alarm 4 25 time 3 12 tool bar 5 2 top oil N 1 U utilities 3 12 V view access 3 13 view logs 3 3 view readings 3 3 Ww windings CT connections 5 10 wiring ac and dc 7 1 communication 7 1 D01386R04 20
18. mar ecg ony FOR A Appendix M Operating Phase s 0 0 A 30 30 A C 30 30 A B 60 60 B 60 60 C 180 180 A 90 90 C B 90 90 B C 150 150 C A 150 150 B A 120 120 B 120 120 C T PRO User Manual 8700 6 45 6 Acceptance Protection Function Test Guide Table 6 2 Shift Reguirement Table Inject Phase B only Transformer Net Phase 9 Pise hit ranje Phase shows these Appendix M Operating Phase s 0 0 B 30 30 B A 30 30 B C 60 60 C 60 60 A 180 180 B 90 90 A C 90 90 C A 150 150 A B 1509 150 C B 1209 1120 C 120 120 A Table 6 3 Shift Requirement Table Inject Phase C only Transformer Net Phase Use Formulae from Injecting only T PRO C Phase Shift degrees Analog Phase Shift shows these Operating Table Appendix M Phase s 0 0 C 30 30 C B 30 30 C A 60 60 A 60 60 B 180 180 C 90 90 B A 90 90 A B 150 1509 B C 150 150 A C 120 120 A 120 1209 B 6 46 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide You should set up a test condition where both sides of the transformer see cur rent on the same 2 phases must be 2 phases only for the method explai
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20. 48 11 Alarm 48 12 Alarm TOEWS 15 Min Alarm Toews so min Aam C D m m m omo Lm m TOEWS Trip aw X OOOOOOXOOOdOOL HE LJE If T PRO Offliner Settings v8 Use the space bar to toggle the matrix on off ee Figure 5 15 Output Matrix The Output Matrix assigns protective functions to specific output relays and al lows these internal protection functions to initiate fault recording Clicking the check box toggles between checked and unchecked A scroll bar on the right shows all the protection functions The recording column on the extreme right allows the protection function to initiate a fault record The alarm functions for time delay elements and refers to options that are selectable to determine when the threshold level of that function has been exceeded All output relays have a 0 1 second stretch time At this stage the basic differential offline settings of the relay are complete Save the settings to a file and then load this file into the relay after the terminal connection with the relay is established The output contact matrix determines which function initiates which output re lay Functions also initiate recording as required For a particular function to operate correctly it must be enabled and must also have
21. Current Source T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor V3 150 Connection AC T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor v3 150 Connection AC Current Source T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor V3 90 Connection AC T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor V3 T PRO User Manual 8700 30 Connection AC O Current Source T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor V3 D01386R04 20 7 Installation Physical Mounting The relay is 3 rack units or 5 25 inches high and approximately 12 25 inches deep The standard relay is designed for a 19 inch rack A complete mechanical drawing is shown for details see Mechanical Drawings in Appendix G To install the relay you need the following 19 inch rack 4 10 screws A vertical mounting package is also available AC and DC Wiring For details see AC Schematic Drawing in Appendix I and DC Schematic Drawing in Appendix J Communication Wiring EIA 232 RJ 45 IRIG B Wiring The relay s three serial ports Ports 1 2 and 3 are configured as EIA RS 232 Data Communications Equipment DCE devices with female DB9 connec tors This allows them to be connected directly to a PC serial port with a stan dard straight through male to female serial cable For pin out de
22. In the online mode you can use any communication software package e g Procomm or HyperTermi nal to connect to the T PRO using VT100 terminal emulation In online mode you can change and review relay settings view event and metering information initiate and retrieve recordings and retrieve settings In offline mode you can use Offliner Settings and RecordBase View software to create and review relay settings analyze fault waveforms store records T PRO Transformer Protection Relay ine Mode Settings Software Online Mode Terminal Mode In addition to the protection functions T PRO provides fault recording 96 samples cycle to facilitate analysis of the power system after a disturbance has taken place The triggers for fault recording are established by programming the output matrix and allowing any internal relay function or any external input to initiate recording The primary protection is differential The restraint is user definable 2nd and 5th harmonic restraint are provided as well as a high current unrestrained set ting T PRO User Manual 8700 1 1 1 Overview To provide a complete package of protection and control T PRO provides oth er functions such as temperature monitoring TOEWS for asset monitoring loss of life digital control of current inputs allow switching overexcitation frequency fixed level or rate of change neutral
23. Quit Figure 6 2 Calibration error out of range For example when you select voltage VA for calibration a prompt appears which asks you which guantity the relay should try to calibrate If a 66 volt T PRO User Manual 8700 D01386R04 20 Testing the External Inputs Testing the Output Relay Contacts D01386R04 20 6 Acceptance Protection Function Test Guide phase to neutral quantity is applied to the back VA terminals 66 0 volts would be indicated as the desired calibration In a s milar way you are prompted to go through all 18 ac analog quantities and provide the information about the injected calibration quantities You must have a test source to perform the function Only the magnitude of the analog input requires calibration not the angle When an analog input channel is calibrated you can verify the guantity mea sured by selecting the Metering menu and the Analog Ouantity submenu VA of the ac voltage input is used as a reference guantity by T PRO Therefore if it is absent there is not a locked valid relationship among all of the analog guantities To test the external inputs connect the relay to a laptop in Terminal Mode Ser vice level gt Metering gt 1 O This screen displays the status of the Input and Out put Contacts Placing a voltage of 125 Vdc nominal 150 V maximum to each of the external inputs in turn causes the input to change from Low to High status These inputs are polarity sensitive
24. Self Checking Relay Inoperative 1 contact closed when relay inoperative Terminal User Interface VT100 terminal emulation Accessible via serial modem or network interface Environmental Ambient Temperature Range 40 C to 85 C IEC 60068 2 1 IEC 60068 2 2 Humidity Up to 95 without condensation IEC 60068 2 30 Insulation Test Hi Pot Power supply analog inputs external inputs output contacts at 1 5 kV 50 60 Hz 1 minute isolated 30 Vdc supply at 1 kV IEC 60255 5 Electrical Fast Transient ANSI IEEE C37 90 1 1989 Oscillatory Transient ANSI IEEE C37 90 1 1989 RFI Susceptibility ANSI IEEE C37 90 2 IEC 255 22 3 Shock and Bump IEC 60255 21 2 Class 1 Appendix A 2 T PRO User Manual 8700 D01386R04 20 Appendix A IED Specifications T PRO Model 8700 Specifications Sinusoidal Vibration 10 Hz to 150 Hz 0 15 mm or 20 m s 10 IEC 60068 2 6 sweep cycles Physical Weight 11 8 kg 26 Ibs Dimensions 13 3 cm 3U high 5 25 48 3 cm rack mount 19 rack mount 30 5 cm deep 12 deep Time Synchronization and Accuracy External Time Source Free Running Accuracy In the absence of an external time source the relay maintains time with a maximum 415 min utes drift per year over the full operating temperature range and maximum 490 seconds drift per year at a constant tem perature of 25 C The relay detects lo
25. These delta currents i e with zero sequence current elimination are used in device 87 regardless However for device 50 51 67 49 and TOEWS whether the delta currents with zero sequence current elimination or the Wye currents without zero se quence current elimination i e without applying the formulas in Appendix L are used will depend on how the CTs are connected Wye current quantities will be used in these functions when all the associated input CTs are connected in Wye otherwise Delta current quantities will be used i e at least one of the associated input CTs are connected in Delta Delta Phase Slope Characteristic Supervision The slope characteristic of the transformer differential operates on Kirchoff s current principle This principle states that current entering an area must be equal to the current leaving this area if no faults are present in this area The protection zone is defined as the area within the measurement CT locations In the ideal situation the slope characteristic can be set to cause the character istic to trip only for internal faults In practice however current measurement errors caused by CT saturation DC offsets or parallel transformer bank sym pathetic energization can disrupt this current measurement balance and cause the relay to trip unnecessarily for external faults The delta phase function is provided to supervise the slope characteristic and prevent relay differential tripping for e
26. This data informs the relay that the transformer maximum rating is 100 MVA This quantity becomes the per unit base quantity for the relay Any reference in the settings or the outputs related to per unit are based on this value The temperature rise value and the cooling method provided form the basis for loss of life calculations for the transformer When user defined is selected in trans former cooling method 7 transformer temperature parameters become edit able If you select other cooling methods these parameters are no longer editable and the default values based on IEEE standards are used for the transformer temperature calculation Nameplate Data Transformer 3 phase Capacity MVA 1 to 2000 Transformer Windings 20r3 Tap Changer Range percent 100 to 100 Normal Loss of Life Hot Spot Temperature 70 0 to 200 0 degrees Transformer Temperature Rise degrees 55 or 65 Transformer Cooling Method Self cooled Forced air cooled OA FA rated 133 or less of self cooled rating Forced air cooled directed flow FOA FOW OA FOA FOA Forced air cooled OA FA FA rated over 133 of self cooled rating Forced air cooled non directed flow FOA FOW OA FOA FOA User defined Temp Rise Hot Spot TriseHS degrees 10 to 110 Temp Rise Top Oil TriseTop degrees 10 to 110 Temp Time Const Hot Spot TauHS hours 0 01 to 2 00 T PRO User Manual 8700 5 9 5 Offliner Settings S
27. pu Figure 6 25 Three Phase Testing Points Load Conditions The following diagram shows a summary of the process used for calculating the currents required to simulate load or through fault condition This process checks the differential element for normal load or large external fault condi tions The T PRO 87 element should not operate under such conditions unless the differential operate current exceeds the slope IO level at the correspond ing amount of restraint current Use Equations 1 and 1A to obtain the values in the diagram Summary of Calculations for Load External Fault Conditions High Side 230 kv myad Low Side115kV Delta 30 Primary Values 0 Primary Values 180 30 lt 150 251 A 502 A CT ratio 250 1 CT ratio 500 1 Calculate Secondary Base 502 500 1 004 A Calculate Secondary Base 251 250 1 004 A CT Delta Factor 7 1 0 wye CT Delta Factor 7 1 0 wye Base x Delta Factor Base x Delta Factor 1 004 x 1 0 lt 1 004 A 1 004 x 1 0 lt 1 004 A Base value Base value Determine the IO and IR current values on the 87 through fault restraint slope characteristic where the T PRO operates Determine the current pickup values of current for any values of IO and IR on the curve T PRO User Manual 8700 6 35 6 Acceptance Protection Function Test Guide 3 The following formulae determine the operating currents for the differential slope characteristic 10 Igy ly 2 or fo
28. unit has an optional Ethernet LAN port installed Port 3 s communication parameters are set using the Utilities gt Setup gt Ports menu in relay s user interface Both the baud rate and the parity bit can be con figured The number of data bits and stop bits are determined automatically by the selected SCADA protocol Modbus ASCII uses 7 data bits Modbus RTU and DNP Serial use 8 data bits All protocols use 1 stop bit except in the case where either Modbus protocol is used with no parity this uses 2 stop bits as defined in the Modbus standard Protocol monitor utilities are available to assist in resolving SCADA commu nication difficulties such as incompatible baud rate or addressing The utilities can be accessed through the Maintenance user interface for details see Main tenance Menu on page 2 12 T PRO User Manual 8700 D01386R04 20 Communication Port Details D01386R04 20 2 Setup and Communications Port Location Front Panel Function RS 232 Data Communication Equipment DCE female DB9 Used for user interface access through a direct serial connection Default Setting 38 400 baud 8 data bits no parity 1 stop bit Rear Panel RS 232 DCE female DB9 Used for User interface access through a direct serial connection User interface access through an external modem The optional ERLPhase Modem Adapter converts this port to a Data Termi nal Equipment DTE to simplify connection to an
29. 0x07 quantity 1 60 1 Class 0 Data 1 read 0x06 Appendix F 2 T PRO User Manual 8700 D01386R04 20 Appendix F DNP3 Communication Protocol 60 2 Class 1 Data 1 read 0x06 0x07 0x08 60 3 Class 2 Data 1 read 0x06 0x07 0x08 80 1 Internal Indications 2 write 0x00 index 7 110 0 Octet String 1 read 0x06 129 response 0x07 111 0 Octet String Change Event 1 read 0x06 129 response 0x07 No Object 14 warm restart Point List Binary Inputs Obj 1 2 Static Points Change Event Points Object Group 1 2 Object Variation 1 Binary Input default 1 Binary Input Change without Time 2 Binary Input with Status 1 Binary Input Change with Time default 3 Binary Input Change with Relative Time Class 0 1 Note Binary inputs are scanned with 1 ms resolution Change event buffer size 100 SSS Binary Inputs Point Index Change Event Class External Input 1 0 1 External Input 2 1 1 External Input 3 2 1 External Input 4 3 1 External Input 5 4 1 External Input 6 5 1 External Input 7 6 1 External Input 8 7 1 External Input 9 8 1 Binary Outputs Obj 10 Static Points Change Event Points Object Group 10 Not Applicable Object Variation 2 Binary Output Status default Not Applicable Class 0 Not Applicable Note Binary outputs are sc
30. 1 00 s 0 00 to 99 99 51N LV Enabled Pickup 10 00 A 0 50 to 50 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 TR 47 30 0 10 to 100 00 50N 51N Neutral Overcurrent TV 50N TV Enabled Pickup 10 00 A 0 50 to 50 00 Pickup Delay 1 00 s 0 00 to 99 99 51N TV Enabled Pickup 10 00 A 0 50 to 50 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 ii TR 47 30 0 10 to 100 00 67 Directional Overcurrent 67 Enabled Pickup 1 50 A 0 05 to 1 95 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 T PRO User Manual 8700 Appendix B 13 Appendix B IED Settings and Ranges Appendix B 14 T PRO Settings Summary Name Symbol Value Unit Range EY A 13 5000 B 0 0000 p 1 00 TR 47 30 0 10 to 100 00 Alpha 0 0 179 9 to 180 0 Beta 180 0 0 1 to 360 0 THD Total Harmonic Distortion THD Enabled Pickup 10 0 5 0 to 100 0 Through Fault Monitor Through Fault Monitor Enabled Input Current HV Pickup Level 1 20 Pu 0 10 to 20 00 Hysteresis 0 10 Pu 0 00 to 1 00 Pickup Delay 0 00 S 0 00 to 99 99 Dropout Delay 0 00 S 0 00 to 99 99 I I t Alarm Limit 1000 0 A A S 0 1 to 9999 9 2nd Harmonic Blocking Disabled Pickup Delay 0 02 S 0 00 to 99 99 Dropout Delay 0 02 S 0 00 to 99 99 PL 1 ProLogic 1 ProLogic 1 Disabled Target Enabled P
31. 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 51 Alarm Monitor 51HV Alarm Output Contact 7 2 Apply balanced 3 phase currents to the T PRO terminals as follows Ph A 300 301 0 8A 20 Ph B 302 303 0 8A Z 120 Ph C 304 305 0 8A Z 120 D01386R04 20 T PRO User Manual 8700 6 19 6 Acceptance Protection Function Test Guide 3 Slowly ramp the 3 phase currents up At 0 95 to 1 05 A expect 1 0 A 51 Alarm High Contact 7 Closed 4 Turn currents off 51 Alarm Low Out 7 Open End of 51ADP test Checking Ambient 1 In Terminal Mode access T PRO Metering gt Logic Temperature am 2 Monitor the following element for pickup Amb Alarm 3 With 18 mA being injected into Ambient Temperature input Amb Alarm lt Low Contact 9 lt Open Note The Ambient Temperature Alarm will activate if the Ambient Tempera ture is outside of the Setting Range 4 Ramp mA input up from 18 mA At Approximately 21 mA Amb Temp Alarm lt High Contact 9 Closed 5 Remove mA input from Ambient Temperature input Amb Alarm High since OmA is out of the setting range Contact 9 Closed End of Ambient Temperature Alarm test Checking the Top Switch mA input from Ambient Temperature input to Top Oil Temperature in A Temperature put 232 233 arm Top Oil Settings measured Top Oil Temperature Scaling 4 mA 40 C 20mA 200 C View the corresponding temperature in Metering gt Trend
32. 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup TopOil Alarm 2 With 18 mA being injected into Top Oil Temperature input TopOil Alarm Low Contact 10 Open Note The Top Oil Temperature Alarm will activate ifthe Top Oil Temperature is outside of the Setting Range 3 Ramp mA input up from 18 mA At approximately 21 mA TopOil Alarm High Contact 10 Closed 6 20 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide 4 Remove mA input from Top Oil Temperature input TopOil Alarm High since OmA is out of the setting range Contact 10 Closed End of Top Oil Temperature Alarm test 49 Thermal mA is injected into Top Oil Temperature input 232 233 Overload Test Settings 49 HV 1 2 per unit Hysteresis 0 1 per unit AND Top Oil Temperature 160 C Temperature Hysteresis 1 0 C Current Input Switch IHV Max ON ILV Max o Tpi ITV Max O of o E wy gt Logic Gate Switch o Temp Input Switch oia Output 12 Hot Spot Temperature O Tp2 S Top Oil Temperature mg 9 E Off o Td Figure 6 18 Logic Thermal Overload 49 Monitor the following element for pickup 49 1 Trip 1 Inject 18 mA into Top Oil Temperature input 160 C setting is exceeded 3 phase currents into Ph A 300 301 1 0 A Z0 Ph B 302 303 1 0 A Z 120 Ph C 304 305 1 0 A Z120 Observe
33. 24DEF Trip Low Output Contact 1 Open T PRO User Manual 8700 D01386R04 20 59N Zero Seguence Overvoltage 3V0 Test D01386R04 20 6 Acceptance Protection Function Test Guide Timing Test 1 Monitor timer stop on Output Contact 4 2 Set timer to start from 3 phase 0 0 V to 86 3 V transition this eguates to 1 3 per unit 60 Hz K B 0 1 01 Time Delay Tu a maa ool j Pickup 36 2 2 8 664 V 66 4 60 60 Where v is the per unit voltage fis the per unit frequency Vary either v or f In this example we re varying v only with f 60 Hz 1 0 per unit End of 24 test Settings e 59N 3V0 Pickup 75 V Time Curve IEC Standard Inverse A 0 14 B 0 p 0 02 TMS 0 2 Out 2 IN Hous Figure 6 11 Logic Zero Sequence OverVoltage 59N 59N Enabled 24VPOS Freg 59N 3V0 Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 59N Alarm 2 Apply 3 phase prefault voltage In phase to the T PRO terminals as fol lows Ph A 330 20 V Z0 Ph B 331 20 V Z0 Ph C 332 20 V Z0 Ph N 333 Note The above prefault 3V0 VA VB VC 20V Z0 20V Z0 20V Z0 60V Z0 V T PRO User Manual 8700 6 11 6 Acceptance Protection Function Test Guide 3 Slowly ramp the 3 phase voltage up At 24 5 25 5 V per phase expect 25 0 V 59N Alarm lt High Output Contact 2 Closed 4 Turn voltage off 5
34. 3IProLodic 31 T PRO Offliner Protection Summary 50 51 Phase Overcurrent SON SIN Neutral Overcurrent M sony stuv IT son Hy SIN HV W sov T stav sonay SINLV MV soty 51 Tv swrv SINTY JO 24INV Inverse Time PIU T 24DEF Definite Time Delay T 274 T 27 2 58N Zero Sequence Overvoltage 60 Loss of Potential 67 Directional Overcurrent 87 Differential O THD Alarm TOEWS Through Fault Monitor Settings v10 Figure 5 12 Protection Functions 87N Neutral Differential 87N HY 87N Lv 87N Tv 81 Over Under Frequency 81 1 Rate of Change 81 2 Fixed Level 81 3 Disabled 81 4 Disabled T PRO Offliner Settings Document 1 FX imi x File Edit Tools Window Help 218 x Osa x eje 5 5 fed 2 Identification Nameplate Data Connections Protection Functions ProLogic Wi PL 1 Lockout Trip PL 2 ProLogic 2 PL 3 ProLogic 3 PL 4 ProLogic 4 OPL 5 ProLogic 5 CI PL 6 ProLogic 6 CPL 7 ProLogic 7 PL 8 ProLogic 8 PL 9 ProLogic 9 CPL 10 ProLogic 10 Output Matrix Record Length Settings Summary ProLogic 1 Lockout Trip Enabled Pickup Delay 0 00 s Dropout Delay 9 09 s IV Target Enabled mua sre input E11 Fast Gas Reay gt muc amave H mup state OOO FC mptE E12 Lockout Resey v Name Lockout Trip enabled and is
35. 49 1 Trip lt Low Contact 12 lt Open 2 Ramp current up At 1 15 to 1 25 A expect 1 20 A 49 1 Trip asserts Contact 12 Closed 3 Decrease Top Oil Temperature to 16 mA 49 1 Trip De asserts Contact 12 lt Open D01386R04 20 T PRO User Manual 8700 6 21 6 Acceptance Protection Function Test Guide 49 TOEWS Test 6 22 4 gt Ramp Top Oil Temperature input up to 17 0 to 17 6 mA 49 1 Trip Asserts Contact 12 Closed Remove mA from Top Oil Temperature input Currents from HV input Contact 12 Open End of 49 test This system warns and trips for conditions of either excessive hot spot temper ature or excessive loss of life during any one overloading occurrence Settings Transformer MVA 100 Cooling Type 1 OA OW Temperature Rise 65 C Normal Loss of Life Hot Spot Temperature 110 C Ths Trip Setting 150 C Ths to start LOL Calculation 120 C LOL Trip Setting 1 day IHVA Select IHV Max pu IHVB Maximum IHVC Phase Current I 15 min alarm TOEWS I 30 min alarm m TOEWS Trip Ta Trend Hot Spot or LOL Quantities VU Ttop Calculationt T Hot Spot Figure 6 19 Logic Transformer Overload Early Warning System 49TOEWS TOEWS Test Procedure 1 Apply balanced 3 phase currents to the T PRO terminals as follows Ph A 300 301 1 00 A 20 Ph B 302 303 1 00 A Z 120 Ph C 304 305 1 00 A Z120 2 Apply 16 mA dc 140 C to Am
36. Analog Input Change 32 bit with Time 4 16 bit Analog Input without flag 4 Analog Input Change 16 bit with Time default Class 0 2 Note Analog Inputs are scanned with 500 ms resolution Note Nominal is based on 69 V secondary voltage PT ratio for voltage channels and either 1A or 5A secondary current CT ratio for current channels dependent upon the format of CT installed in the T PRO Change event buffer size 100 Point i Change Analog Inputs index Units Scale Event Deadband Class Va Magnitude 0 kV 10 2 2 Nomina Va Angle 1 Degrees 10 2 0 5 Degrees Vb Magnitude 2 kV 10 2 2 Nomina Vb Angle 3 Degrees 10 2 0 5 Degrees Vc Magnitude 4 kV 10 2 2 Nomina Vc Angle 5 Degrees 10 2 0 5 Degrees Positive Sequence Voltage 6 kV 10 2 2 Nomina Positive Sequence Current 7 A 1 2 2 Nomina Instantaneous Watts 8 MW 10 2 4 Nominal Instantaneous VARs 9 MVAR 10 2 4 Nominal 11a Magnitude 10 A 1 2 2 Nomina 11a Angle 11 Degrees 10 2 0 5 Degrees 11b Magnitude 12 A 1 2 2 Nomina 11b Angle 13 Degrees 10 2 0 5 Degrees 11c Magnitude 14 A 1 2 2 Nomina 11c Angle 15 Degrees 10 2 0 5 Degrees Appendix F 6 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix F DNP3 Communication Protocol I2a Magni
37. Delay 1 00 s 0 00 to 99 99 51 HV Enabled Pickup 1 50 pu 0 50 to 2 10 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 TR 47 30 0 10 to 100 00 51ADP Enabled Multiple of Normal Loss of Life 1 0 0 5 to 512 0 50 51 Phase Overcurrent LV 50 LV Enabled Pickup 1 50 pu 0 10 to 20 00 Pickup Delay 1 00 s 0 00 to 99 99 51 LV Enabled Pickup 1 50 pu 0 10 to 5 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 z TR 47 30 0 10 to 100 00 50 51 Phase Overcurrent TV 50 TV Enabled Pickup 1 50 pu 0 10 to 20 00 Pickup Delay 1 00 s 0 00 to 99 99 51 TV Enabled Pickup 1 50 pu 0 10 to 5 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 z TR 47 30 0 10 to 100 00 50N 51N Neutral Overcurrent HV 50N HV Enabled Pickup 10 00 A 0 50 to 50 00 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Pickup Delay 1 00 s 0 00 to 99 99 51N HV Enabled Pickup 10 00 A 0 50 to 50 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 TR 47 30 0 10 to 100 00 50N 51N Neutral Overcurrent LV 50N LV Enabled Pickup 10 00 A 0 50 to 50 00 Pickup Delay
38. Dev 51NTV Trip 00787 0 Off inactive On active Dev 51NTV Alarm 00788 0 Off inactive On active Dev 50NTV Trip 00789 0 Off inactive On active Dev 67 Trip 00790 0 Off inactive On active Dev 67 Alarm 00791 0 Off inactive On active Dev 24INV Trip 00792 0 Off inactive On active Dev 24INV Alarm 00793 0 Off inactive On active Dev 24DEF Trip 00794 0 Off inactive On active Dev 59N Trip 00795 0 Off inactive On active Dev 59N Alarm 00796 0 Off inactive On active Dev 60 Alarm 00797 0 Off inactive On active THD Alarm 00798 0 Off inactive On active Self Check Fail 00799 0 Off inactive On active Ambient Temp Alarm 00800 0 Off inactive On active Top Oil Temp Alarm 00801 0 Off inactive On active Dev 49 1 Trip Alarm 00802 0 Off inactive On active Dev 49 2 Trip Alarm 00803 0 Off inactive On active Dev 49 3 Trip Alarm 00804 0 Off inactive On active Dev 49 4 Trip Alarm 00805 0 Off inactive On active Dev 49 5 Trip Alarm 00806 0 Off inactive On active Dev 49 6 Trip Alarm 00807 0 Off inactive On active Dev 49 7 Trip Alarm 00808 0 Off inactive On active Dev 49 8 Trip Alarm 00809 0 Off inactive On active Dev 49 9 Trip Alarm 00810 0 Off inactive On active Dev 49 10 Trip Alarm 00811 0 Off inactive On active Dev 49 11 Trip Alarm 00812 0 Off inactive On active Dev 49 12 Trip Alarm 00813 0 Off inactiv
39. IEC Very Inverse 13 50 fixed 0 00 fixed 1 00 fixed 3 IEC Extremely Inverse 80 00 fixed 0 00 fixed 2 00 fixed 4 IEEE Moderately Inverse 0 0103 fixed 0 0228 fixed 0 02 fixed 5 IEEE Very Inverse 3 922 fixed 0 0982 fixed 2 00 fixed 6 IEEE Extremely Inverse 5 64 fixed 0 0243 fixed 2 00 fixed 7 User defined 0 001 1000 0 0 10 0 0 01 10 0 59N Zero Seguence Overvoltage Setting Functions 3VO Pickup Minimum level that operates device 59N Curve Type Sets the type of curve TMS Factor for inverse time curve A B p Parameters for defining the curve TR Factor for altering the reset time 4 16 T PRO User Manual 8700 D01386R04 20 27 Undervoltage D01386R04 20 4 Protection Functions and Specifications 59N Zero Sequence Overvoltage Setting Ranges 59N Enable disable 3V Pickup volts 75 00 to 150 00 Curve Type See IEC and IEEE Curves on page 4 16 TMS 0 01 to 10 00 A 0 0010 to 1000 0 B 0 0000 to 10 0 p 0 01 to 10 00 TR 0 10 to 100 00 Two sets of undervoltage protection elements are provided to monitor the bus voltage When the voltage level applied to the analog voltage inputs is below the pickup level the 27 operates after the time delay has expired The 27 1 and 27 2 functions are identical in terms of operation Use the gate switch to select between an AND or an OR gate in order to detect a thre
40. Level ar prev menu Analog Logic ProLogic I 0 Trend Dev49 TOEWS OPERATING Quantity A Phase B Phase C Phase HV Currents 0 000 0 0 000 0 0 000 0 LY Currents 0 000 0 0 000 0 0 000 0 TV Currents 0 000 0 0 000 0 0 000 0 Operating Currents 0 00PU 0 00PU 0 00PU Restraint Currents 0 00PU 0 00PU 0 00PU Frequency 0 00Hz Figure 6 26 Metering Operating Screen T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide Details of Calculations Step 1 Three phase calculations See 3 phase test section Step 2 Determine transformer net phase shift Sum the suffixes of your winding CT configurations e g Delta 30 30 Wye 30 30 Delta 60 60 Wye 0 0 etc To Demonstrate Transformer HV Wye 0 and LV Delta 30 CTs HV CT Wye 0 and LV CT Wye 0 Your Net High Side angle 0 0 0 T PRO uses 0 phase shift formu lae to null the angle Your Net Low Side angle 30 0 30 T PRO uses 30 phase shift formulae to null the angle Step 3 The following Shift Requirement Table shows the net transformer phase shift on the left Injecting into Phase A only of T PRO yields current in the phases displayed in the right column Confirm this by checking the T PRO s Meter ing gt Operating screen Table 6 1 Shift Requirement Table Inject Phase A only Testor Not Phen
41. Low Side 115 kV HV Current Value LV Current Value 5 5 per unit 4 5 per unit iH i Convert to Amps 5 5 x 1 004 Convert to Amps 4 5 x 1 004 d HV Test Current 5 522 A LV Test Current 6 Test IR gt IRs Let IR lt 7 0 per unit S2xIR Sl S2 IO 100 100 x IRs 40 x 7 0 20 40 100 ip e IO 28 10 IO 1 8pu Solving for Iyy and I y IO Igy lpy 18 ije IpytI IR AX 2 Lay tl 70 ut LV 10x2 Igy ly 14 0 Igy t Igy D01386R04 20 T PRO User Manual 8700 6 41 6 Acceptance Protection Function Test Guide 6 42 Solve for Ijy by adding the two equations together 1 8 Igy 1 y 14 0 Ipyt liy Total 15 8 2Iyy 15 8 Iyy 7 9pu vamps TVbaseSec X yperunit 1 004 x 7 9 7 934 Now solve for Ij y by subtracting the two equations Lec ens 14 0 EE Iy Total 12 2 27 22 o Iyy7 6 1pu vamps Tr Vbasesec X Ip vperunit 1 004 x 6 1 6 1244 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide Summary of Calculations for Testing IR gt IRS IR 7 0 High Side 230 kV Low Side 115 kV HV Current Value LV Current Value 7 9 per unit 6 1 per unit Convert to Amps 6 1 x 1 004 Convert to Amps 7 9 x 1 004 HV Test Current LV Test Current 6 124 A Summary of Three Phase Test 1 Calculate base current for each side 2 Determine an I
42. Manual 8700 2 7 2 Setup and Communications Accessing the SCADA Services Protocol Selection Communication Parameters Diagnostics 2 8 The relay supports DNP3 Level 2 and Modbus SCADA protocols as a stan dard feature on all relays DNP3 is available through a direct serial link or the Ethernet LAN on top ofeither TCP or UDP protocols The Modbus implemen tation supports both RTU binary or ASCII modes and is available through a direct serial link The relay s Port 3 is dedicated for use with Modbus or DNP3 serial protocols Port 3 uses standard RS 232 signalling An external RS 232 lt gt RS 485 con verter can also be used to connect to an RS 485 network For details on connecting to serial Port 3 see Communicating with the Relay IED on page 2 2 and Communication Port Details on page 2 9 The DNP3 protocol can also be run across the optional Ethernet LAN Both DNP over TCP and DNP over UDP are supported for details on connecting to the Ethernet LAN see Network Link on page 2 4 Complete details on the Modbus and DNP3 protocol services can be found in Modbus RTU Communication Protocol in Appendix E and DNP3 Commu nication Protocol in Appendix F To select the desired SCADA protocol login to the relay s user interface and access the Utilities gt Setup gt SCADA menu Select the protocol and set the cor responding parameters The DNP3 LAN WAN TCP and UDP options are only available if the
43. PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications 81 Over Under The relay has four freguency devices available Each freguency element can be Freguency set to operate either at a fixed level of under freguency a fixed level of over freguency or at a rate of change level df dt The df dt function can be set to operate for a positive rate of change or a negative rate of change Each freguen cy element has a definite time delay setting to create a time delayed output A fixed level of positive seguence voltage of 0 25 pu or 5 volts whichever is greater provides an undervoltage inhibit on each element Figure 4 11 Over Under Freguency 81 Freguency Setting Functions Pickup Minimum level that operates device 81 Pickup Delay Operating time for the 81 81 Freguency Setting Ranges 81 1 81 2 81 3 81 4 Enabled disabled fixed level rate of change Pickup Hz second 60 Hz Fixed Level Between 50 000 59 995 or 60 005 70 000 Pickup Hz second 60 Hz Rate of Change Between 10 0 0 1 or 0 1 10 0 Pickup Delay seconds 60 Hz Fixed Level 0 09 10 93 99 Pickup Delay seconds 60 Hz Rate of Change 0 20 10 99 93 Pickup Hz second 50 Hz Fixed Level Between 40 000 49 995 or 50 005 60 000 Pickup Hz second 50 Hz Rate of Change Between 10 0 0 1 or 0 1 10 0 Pickup Delay seconds 50 Hz Fixed Lev
44. Scaling Ambient Maximum Valid Temperature degrees x to 50 0 x Minimum Valid Temperature 10 Minimum Valid Temperature degrees 50 0 to x x Maximum Valid Temperature 10 Maximum Current Value mA x to 20 00 x lt Minimum Current Value 1 mA Minimum Current Value mA 4 00 to x x Maximum Current Value 1 mA Top Oil Calculated Enable disable Sensed Enable disable Maximum Valid Temperature degrees x to 200 0 x Minimum Valid Temperature 10 Minimum Valid Temperature degrees 50 0 to x x Maximum Valid Temperature 10 Maximum Current Value mA x to 20 00 x lt Minimum Current Value 1 mA Minimum Current Value mA T PRO User Manual 8700 4 00 to x x Maximum Current Value 1 mA D01386R04 20 Protection Functions ProLogic D01386R04 20 5 Offliner Settings Software The protection function features are described in detail see Protection Func tions and Specifications on page 4 1 T PRO Offliner Settings Document 1 EJ File Edit Tools Window Help osal Ba ea js m identification O Relay C Analog Inputs C External Inputs O Output Contacts C Nameplate Data C Connections O WindingiCT PT rature Scaling Functions O Toms 024 TIS9N D27 60 81 150 51 O S0N S1N Os THD Alarm C Through Fault Monitor ProLogic IPL 1 ProLogic 1 PL 2 ProLogic 2 PL
45. The power supply operates from 40 to 300 Vdc or 120 Vac 20 at 50 60 Hz This wide operating range provides easier installation by eliminating pow er supply ordering options The AC Analog Input Board has 15 current transformer inputs and 3 potential transformer inputs for ac current and voltage inputs On board anti aliasing fil ters provide accurate and secure digitization of the ac input signals The MPB has analog data acguisition high speed digital signal processing for triggering and data conversion communications and interface logic to per form the core functions of the relay The Digital Signal Processor DSP on a MPB performs the protective relaying functions of the relay separate from the 486 CPU It has its own flash memory and self checking for fully independent operation The Main Processor Board has 24 channels of high speed 12 bit plus sign analog to digital conversion Re programmable flash memory for the DSP allows independent relay op eration and field software upgrades Floating point DSP for fast capture and manipulation of data Standard RS 232 serial communications ports High speed link between DSP and 486 processors Time synchronism processor with automatic detection of modulated and unmodulated IRIG B Sophisticated fault detection and watchdog recovery hardware T PRO User Manual 8700 Appendix C 1 Appendix C Hardware Description 486 CPU Board Front Panel Board Appendix C 2 A 486
46. Trip 67 Trip 24INV Trip 24DEF Trip 59N Trip 60 Alarm 51 HV Alarm 51 LV Alarm 51 TV Alarm 51N HV Alarm 51N LV Alarm 51N TV Alarm 67 Alarm 24INV Alarm 59N Alarm THD Exceeds Limit Alrm T PRO User Manual 8700 Appendix D 1 Appendix D Event Messages Appendix D 2 T PRO Event Messages LL Ambient P1 Range Alrm P1 could be Over or Under Top Oil P1 Range Alrm P1 could be Over or Under TOEWS 15 min Alarm TOEWS 30 min Alarm TOEWS Trip 49 1 Trip Alarm 49 2 Trip Alarm 49 3 Trip Alarm 49 4 Trip Alarm 49 5 Trip Alarm 49 6 Trip Alarm 49 7 Trip Alarm 49 8 Trip Alarm 49 9 Trip Alarm 49 10 Trip Alarm 49 11 Trip Alarm 49 12 Trip Alarm 81 1 Trip 81 2 Trip 81 3 Trip 81 4 Trip 27 1 Trip on ABC The possible phase information is 27 2 Trip on ABC lt A B Cc N AB BC CA ABC I lI t Alarm on ABC The possible phase information is A B Cc N AB BC CA ABC ProLogic Name PLn ProLogic outputs names are user assigned Where n 7 1 to 10 External Input Name Eln High External input names are user assigned Where n 1 to 9 External Input Name Eln Low External Input names are user assigned Where n 7 1 to 9 Output Contact
47. Vio Time Readings Logs SOS CO o 801m gt D01386R04 20 c V item 62 i vmi tar TP Appendix G Mechanical Drawings Side View 436 2 mm 17 18 303 1 mm 11 94 Figure G 3 Vertical Mount Mechanical Drawing T PRO User Manual 8700 Appendix G 3 Appendix G Mechanical Drawings Pa zem gt ame stna te eR tezi 1 6mm 46 LV m Ar 7 F 4 142mm ee Holes for APT Vertical Mount 4 places 964 m 0 25 l I I New Installation Retrofit Cut Out Template a B Installation ABB Type FT42 Cut ref ABB dwg 57D7 l I es ri em e T i k iam 232 6 9 16 l l Y l m Ah Xo g p s ES te i Figure G 4 Vertical Mount Cut out Template Appendix G 4 T PRO User Manual 8700 D01386R04 20 Appendix H Rear Panel Drawings lee Ote S ZE Z Me E tae ZE E We 6E BE ZE 9E Sie E ele Ze Lis OE GE BE Z0 ME GE WE HE ZOE loc 0 LOLO NOO a wu ec ez MZ oz Gc SZ IM wc Sc vz Q az vz Qc ez Sc ABAD I I I I I I I i i I I
48. actual setting values 1 To perform acceptance tests use the appropriate Acceptance Test Setting File TPROaccTestsetting hz tps You can find this setting file in C Program Files ERLPhase T PRO Offliner Settings after T PRO Offliner Setting software has been installed If an older version of T PRO Offliner was previously installed on your PC then the default directory may be C Program Files APT T PRO Offliner Settings See About the Accept ance Test Setting File on page 6 5 Load the Acceptance Test Setting File into the relay Note that this file has Ignore Serial Number checked If this was not checked the exact T PRO serial number would need to be entered into the file and saved in order for the T PRO to accept it Identification Unit ID Nominal CT Sec Current Nominal System Frequency Software Setting Date Created Modified Station Bank Name Settings Version Serial Number Comments Setting Name Station Name Station Number Location Relay Identification 7 ignore Ser eri 5 Refer to the serial number TPRO 8700 11015 14 m on the back of the relay Relay123456789012345 5A H amp 0Hz Use with T PRO 8700 amp cceptance Protection Function Test Guide or ProTe Acc Test Settings 2003 03 19 11 46 38 Transformer 1 NXTPhase Bank 1 Figure 6 3 Relay Identification The acceptance test setting file provided is not nec
49. and re member I5B 326 327 should be selected for LV winding and I5C 328 329 for TV winding inputs 87N lOmin Neutral Test Procedure 1 Connect current source to T PRO Terminals 324 325 ISA HV 2 Slowly ramp current up At 0 74 to 0 77 A expect 0 753 A 87N HV Trip High T PRO Target Neu Diff 87NHV Trip Output Contact 6 Closed 3 Turn current off End of 87N test T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide T PRO Differential Slope Test Example D01386R04 20 100 MVA 115 kV 2500 5 Gnd Delta Wye 30 Figure 6 24 T PRO Differential Slope Test Example Testing T PRO Transformer Relay Differential Element Calculations to be performed prior to T PRO testing Settings for the 87 differential element s JO is 0 3 per unit e IRS 5 0 per unit SI 20 e 2 40 Establish base load current for transformer reference side where the VTs are located For this example the VTs are located on the 230 kV HV side winding p KVA m BasePri NE kV _ 100000 _ 5554 3 230 1A ia tamana cease CTRatio Equation Note 1 H L or T depending on the winding on which the base is being calculated Equation Note 2 Delta factor 1 0 for wye connected CTs V3 for delta con nected CTs T PRO User Manual 8700 6 33 6 Acceptance Protection Function Test Guide Calculate the Base current amps for each wi
50. and this screen has a 0 5 seconds up date rate Test the output relays to verify their integrity using the Utilities Mainte nance gt Outputs The output contacts are closed by pressing the Enter key Tog gle the output contacts from open to closed by pressing the Enter key Verify the output contact status using an ohmmeter When you exit this sub menu all contact status reverts to the open position T PRO User Manual 8700 6 3 6 Acceptance Protection Function Test Guide T PRO Acceptance Test Procedure Outline Devices to Test 6 4 60 AC Loss of Potential 24INV Time Inverse Overexcitation volts per hertz 24DEF Definite Time Overexcitation 59N Zero Seguence Overvoltage 27 Undervoltage 81 1 set to fixed Over Freguency 81 3 set to fixed Under Freguency 50N 51N Neutral Overcurrent 67 Directional Overcurrent 50 51 Phase Overcurrent 51 ADP Adaptive Overcurrent Top Oil Temperature Alarm Ambient Temperature Alarm 49 49 TOEWS 87 Differential Single and Three Phase THD Alarm 87N Neutral Differential T PRO User Manual 8700 D01386R04 20 Nameplate Settings and Transformer Connections About the Acceptance Test Setting File D01386R04 20 6 Acceptance Protection Function Test Guide To perform maintenance tests modify the applicable relay test quantities by go ing through the calculation processes described in the following procedures i e substitute acceptance test setting values with your
51. class CPU provides data storage information management housekeep ing and communications for the relay The 486 runs a real time operating sys tem optimized for high speed high precision computing The 486 provides sophisticated facilities for communications and field software updates Local and wide area networking is supported by providing the relay with a path to fu ture networking capability A highly reliable solid state flash disk on the CPU board provides the operat ing software for the 486 and stores the relay s recordings The Front Panel Board provides visual indication of the status of the relay an alphanumeric display and keypad for system monitoring and a front panel RS 232 port Relay Output and DC Analog Input Board External Input DC Analog Inputs are optional and Comm Board only used on T PRO Power Supply AC Analog Board oar Input Board 486 CPU Board Main Processor Board Front Panel Board T PRO User Manual 8700 D01386R04 20 Appendix D Event Messages D01386R04 20 T PRO Event Messages Event Log Message Notes 87 Trip on ABC The possible phase information is A B Cc N AB BC CA ABC 87N HV Trip 87N LV Trip 87N TV Trip 51 HV Trip 50 HV Trip 51 LV Trip 50 LV Trip 51 TV Trip 50 TV Trip 51N HV Trip 50N HV Trip 51N LV Trip 50N LV Trip 51N TV Trip 50N TV
52. ensure that the 2nd harmonics blocking will be only applied on the inrush current rather than fault current Td2 setting is used to stretch the 2nd harmonics blocking signal once it picks up This is to prevent it from early reset in order to endure a reliable blocking An alarm will be issued when the total accumulated I t value of any phase ex ceeds the preset threshold When this occurs some necessary maintenance to the transformer should probably be performed After that is completed the to tal accumulated It value should be reset The It alarm limit threshold may also need to be adjusted accordingly after successive accumulated I2t values have been reached The through fault events and the associated monitored quantities can be viewed through Event Log Through Fault Peak and Event Log Through Fault I I t in Terminal VI respectively They can also be retrieved to RecordBase View and exported to MS Excel CSV format refer to RecordBase View for details To T PRO User Manual 8700 4 27 4 Protection Functions and Specifications 4 28 avoid data loss of the through fault events Event Auto Save feature should be enabled Through Fault Monitor Setting Ranges Through Fault Monitor Enable Disable Input Current HV LV ORTV Pickup Level pu 0 10 to 20 00 Hysteresis pu 0 00 to MIN 1 00 Pickup Level onds T PRO User Manual 8700 Pickup Delay Tp1 seconds 0 00 to 99 99 Dropout De
53. formulas for the phase shift corrections are in Analog Phase Shift Table in Appendix L Note that in addition to correcting the phase these formulas will also eliminate the zero seguence current from the analog inputs Magnitude Corrections The next step is to correct the magnitude of each current input There are three things that need to be corrected for CT Ratio Mismatch CT Connection Correction Transformer Ratio The Magnitude Correction Factor is applied as follows Mismatch Correction Factorli Where i Current input being considered PhysicalCT Root3 Factor i x Voltage Level i x CT Ratio i Voltage REF x CT Ratio REF PhysicalCT Root3 Factor i 1 for a Y connected CT I SQR 3 for Delta connected CT Voltage Level i Voltage level of the input being considered CT Ratio i lt CT ratio of the input being considered Voltage REF Voltage level of the reference PT side CT Ratio REF CT ratio of the first current input on the reference PT side T PRO User Manual 8700 4 5 4 Protection Functions and Specifications After the phase and magnitude corrections have been performed the currents can now be summed on a single phase basis to arrive at the HV LV and TV winding currents For the example above the following summations will take place IHa NA I2A ILa I3A I4A ITa ISA IHb IIB I2B ILa 13B 14B ITa I5B IHc NC 12C ILa I3C IAC ITa I5C
54. function within the relay Record Length Record Length r Fault Prefault time fixed at 10 cycles Sample Rate fixed at 96 samples per cycle Fault Record Length 05 s m Thermal Logging Enabled Trend Sampling 3 minutes sample Event Auto Save Figure 5 14 Record Length Define the fault recording record length and the Output Matrix characteristics Fault record sampling rate fixed at 96 samples per cycle Prefault data is fixed at 10 cycles Thermal logging rate setting Record Length Fault Prefault time fixed at 10 cycles Sample Rate fixed at 96 samples per cycle Fault Record Length seconds 0 2 to 2 0 Thermal Logging Enable disable Trend Sampling minutes sample 3 to 60 Event Auto Save Enable Disable 5 14 T PRO User Manual 8700 D01386R04 20 Output Matrix D01386R04 20 5 Offliner Settings Software oxi EJ pie Edt Tools window Help zl ix Oise x e ej efr v B ish Output Contact E Namepldle Data Device 2 3 4 5 6 7 9 10 11 12 15 14 Recording E Connections 87 Trip s T IET H i x ss Protection Funct i queens inje utens swHvme O X O D EN UN BI HR 3G nd Bl Output Matrix BELT x x Record Length smavme X OO m m moi jeli ae Settings Summary ff 38 qs 48 2 Trip 49 3 Trip 49 4 Alarm 49 5 Alarm 49 6 Alarm 49 7 Alarm 49 8 Alarm 49 9 Alarm 48 10 Alarm
55. horizontal or vertical mount for details see Me chanical Drawings in Appendix G T PRO is available with an internal modem card or internal network card The CT inputs are 1 A nominal or 5 A nominal The external inputs are 48 125 Vdc or 125 250 Vdc The system base frequency is either 50 Hz or 60 Hz All of the above options must be specified at the time of ordering T PRO User Manual 8700 D01386R04 20 2 Setup and Communications Power Supply Case Grounding A wide range power supply is standard The nominal operating range is 48 to 250 Vdc 120 Vac 50 60 Hz To protect against a possible short circuit in the supply use an inline fuse or circuit breaker with a 5 A rating Make the chassis ground connection to ensure proper operation and safety There are no power switches on the relay When the power supply is connect ed the relay starts its initialization process and takes about 40 seconds to com plete showing the green Relay Functional LED Y ou must ground the relay to the station ground using the case grounding ter minal at the back of the relay for details see for details see Figure 1 3 T PRO Back View on page 1 3 WARNING To ensure safety and proper operation you must connect the relay to the station ground using the rear grounding terminal on the relay Ground the relay even when testing Do not rely on the rack mounting screws to provide case grounding IRIG B Time Input D01386R04 20 T
56. its logic output assigned to at least one output contact if it is involved in a tripping function Print the entire output matrix by selecting the printer icon This printout is pro duced on 2 pages T PRO User Manual 8700 5 15 5 Offliner Settings Software Setting Summary File Edit Tools Window Help sl lx olsa se sj l 2 E Identification x C Nameplate Data Setingr Sume J u Matix C Connections T PRO Settings Summary H Protection Functions 8 ProLogic Output Matrix O Record Length Name Symbol Value Wi Settings Summary Relay Identification Settings Version 6 Ignore Serial Number No Serial Number TPRO 8700 9801 30 06 Unit ID UnitiD Nominal CT Secondary Current SA Nominal System Frequency 60 Hz Comments Default Settings Date Created Moditied 1999 03 22 11 50 00 Station Name Station Name Station Number 1 Location Location TB3 Voltage A Voltage B Voltage C 4 T PRO Offliner Settings v8 v Figure 5 16 Settings Summary Select Settings Summary to view and print the relay settings in text form for details see TED Settings and Ranges in Appendix B 5 16 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide Acceptance Testing Test Eguipment Reguirements D01386R04 20 ERLPhase relays are fully tested before leaving the factory visual inspec tion of the relay and its packa
57. of UTC to IED local time 40015 2 s complement half 1 T PRO User Manual 8700 hours North America is negative D01386R04 20 D01386R04 20 Appendix E Modbus RTU Communication Protocol Read Holding register table Channel Address Units Scale Va Magnitude 257 KV 10 Va Angle 258 Degrees 10 Vb Magnitude 259 kV 10 Vb Angle 260 Degrees 10 Vc Magnitude 261 kV 10 Vc Angle 262 Degrees 10 Positive Seguence Voltage 263 kV 10 Positive Seguence Current 264 A 1 Instantaneous Watts 265 MW 10 Instantaneous VARs 266 MVAR 10 11a Magnitude 267 A 1 11a Angle 268 Degrees 10 11b Magnitude 269 A 1 11b Angle 270 Degrees 10 11c Magnitude 271 A 1 11c Angle 272 Degrees 10 12a Magnitude 273 A 1 I2a Angle 274 Degrees 10 12b Magnitude 275 A 1 12b Angle 276 Degrees 10 12c Magnitude 277 A 1 12c Angle 278 Degrees 10 13a Magnitude 279 A 1 13a Angle 280 Degrees 10 13b Magnitude 281 A 1 13b Angle 282 Degrees 10 13c Magnitude 283 A 1 13c Angle 284 Degrees 10 14a Magnitude 285 A 1 14a Angle 286 Degrees 10 14b Magnitude 287 A 1 14b Angle 288 Degrees 10 14c Magnitude 289 A 1 14c Angle 290 Degrees 10 I5a Magnitude 291 A 1 I5a Angle 292 Degrees 10 T PRO User Manual 8700 Appendix E 5 Appendix E Modbus RTU Communication Protocol Appendix E 6
58. overvolt age undervoltage thermal overload THD adaptive pickup overcurrent neutral differential functions provide additional protection needs ProLogic control statements provide user configurable logic functions High Voltage HV 3 52 gt oco o c ae 2 E o c lt o 5 o m ProLogic e e 0 Tertiary Voltage TV 52 o 0000600 o 3 4 18 Analog Inputs 9 External Inputs 2 Temperature Inputs 1 2 Y 14 Output Contacts 1 Relay Inoperative Alarm Contact Unregulated Isolated 30 Vdc Supply Trend Recording 9 Quantities 30 Day Trend Log Fault Recording 15 Currents 3 Voltages Protection Elements External Inputs I Low Voltage LV T PRO can be used for a two 2 or three 3 winding transformer with up to five 5 sets of CT inputs three 3 winding example shown Figure 1 1 T PRO Function Line Diagram T PRO User Manual 8700 D01386R04 20 1 Overview Front View T PRO O Relay Functional Transtormer Protection Relay O IRIG B Functional Model 8700 Daf View iew O Service Required Time Readings Logs Previous Next O Test Mode D Alarm Port 1 Front display of time alarms and relay target Relay target LED red LEDs indicating status of relay Communications serial Port 1 for laptop computer 6 5 4 Cle
59. pops up prompting Offliner for a new file name Use either the same file name or enter a new file name The con version process inserts default values for any newly added devices in the new setting file When the conversion is complete Offliner Settings dis plays the new file Save As 21x Save in X T PRO Offliner Settings Ek Er bin B v2 sample tps 8 v3 sample tps B v4 sample tps B v5 sample tps B v6 sample tps File name Jocument tps Save Save as type T PRO Settings Files tps zl Cancel Figure 5 3 Converting Setting Files Sending a New 1 Make sure the settings version and the serial number of the relay in the set Relay d ile to the ting file match The relay will reject the setting file if either the serial number or the settings version do not match A serial number discrepancy message may appear This is to en sure that you are aware of the exact relay in which settings are to be loaded If this happens check the relay serial number using the terminal mode ID menu item Type this serial number into the T PRO Serial No box in the Identification tab display area of Offliner Settings Alternately you may check the Ignore Serial Number check box to bypass serial number supervision 2 Check the serial number and the settings version of the relay for details see SID on page 3 9 The Device Serial Number and Required Settings Ver sion on the Identification scre
60. the input currents are taken from the transformer neutral CTs and are in secondary amps rather than per unit To enable 50N 51N Current Input 5 must be set to SIN i e option 87N 51N in Connection Winding CT Connections If Input 5 is set to 87N auto only 50 51N HV is available 50N 51N Neutral Overcurrent Setting Functions 50N Pickup Minimum level that operates device 50N 50N Pickup Delay Operating time for the 50N 51N Pickup Minimum level that operates device 51N Curve Type Sets the type of curve TMS Factor for altering inverse time curve T PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications A B p Parameters for defining the curve TR Factor for altering the reset time 50N 51N Neutral Overcurrent Setting Ranges 50N HV LV TV Enable disable Pickup A 0 50 to 50 00 Pickup Delay seconds 0 00 to 99 99 51N HV LV TV Enable disable Pickup pu 0 50 to 50 00 Curve Type See Table 4 2 IEC and IEEE Curves on page 4 16 Tms Time Multiplier Setting 0 05 to 1 00 if curve type is 1 to 3 0 50 to 10 00 if curve type is 4 to 6 0 05 to 10 00 if curve type is 7 A 0 0010 to 1000 0 B 0 0000 to 10 00 p 0 01 to 10 0 TR 0 10 to 100 00 67 Directional Overcurrent 180 lt Alpha lt 180 Positive sequence 0 lt Beta lt 360 voltage and current Beta Tip Zone V1 reference LV Side HV Side R
61. the screen Programming done using the Modicon Modbus Protocol Reference Guide PI MBUS 300 Rev G published by Modicon Inc dated November 1994 for details see Modbus RTU Communication Protocol in Appendix E T PRO User Manual 8700 D01386R04 20 Access Quit D01386R04 20 3 Using the IED Getting Started Submenus VIEW Access CHANGE Access Password Provides the ability to change access levels and passwords View Changes the access level to view Allows read only access to relay information Change Changes the access level to change Allows you to modify settings and delete records Service Changes the access level to service Allows you to do everything including calibration manual control of the output contacts and mod ification of passwords available through local Port 1 connection only Passwords Allows you to read and change passwords Requires service access level Selecting this option ends serial port communication with the relay T PRO User Manual 8700 3 13 3 Using the IED Getting Started Metering Data Front Panel Metering TUI Metering 3 14 The quantities provided on the front panel display are the L L voltage line cur rents the MW and the MVARs These quantities are displayed for the side that the PT is connected to In addition ambient top oil and hot spot temperatures are displayed The TUJ provides the following metering guantities
62. time constant in hours R ratio of full load rated copper loss to rated iron loss dimension less m exponent relating load level to hot spot rise dimensionless n exponent relating load level to top oil rise dimensionless The newest version of this Standard at the time of writing 1998 is C57 91 1995 The only numerical difference in the new table is for Non Directed FOA or FOW cooling n 0 9 rather than 1 0 Also in the new standard it is recommended that all parameters in the table except m and n should be found from test Of course this is not usually pos sible especially if the transformer is already in service The temperature calculation equations are most concisely described in block diagram form for details see for details see Figure N 1 Block Diagram of Top Oil and Hot Spot Temperature Calculation Method on page N 3 Inputs per unit load and Ambient Temperature and for details see Figure N 2 Block Di agram of Top Oil and Hot Spot Temperature Calculation Method on page N 3 Inputs per unit load and Top Oil Temperature The two situations are 1 Top Oil temperature not sensed For this case the Top Oil temperature is calculated as a rise above the Ambient temperature and the Hot Spot tem perature as a rise above Top Oil temperature 2 Top Oil temperature is sensed an electrical analog input to the relay For this case the Hot Spot temperature is calculated as a rise above the meas ured Top Oi
63. to excessive loss of life for times greater than about fifteen minutes The software for this kind of study is available from ERLPhase TOEWS Transformer Overload Early Warning System Setting Ranges TOEWS Enable disable THS Temperature Hot Spot Trip Setting degrees 70 0 to 200 0 THS to Start LOL Loss of Life Calculation degrees 70 0 to 200 0 LOL Loss of Life Trip Setting days 0 5 to 100 0 T PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications 24 Overexcitation 24INV provides inverse time overexcitation over fluxing protection The ac tivating guantity is the ratio of voltage to freguency because flux is proportion al to the voltage and inversely proportional to the freguency 24INV protects the transformer from overfluxing because either voltage increases or system freguency changes 24INV is defined as NI V 2 Picku G P Where T is the tripping time in seconds V is the positive sequence voltage in per unit fis the frequency in per unit K is a parameter raising or lowering the inverse time curve Pickup is the user set value of V f at which the element starts to progress toward trip The element uses the positive sequence voltage and compares the pu positive sequence magnitude to the pu positive sequence frequency 24DEF Definite Time Delay protection is similar to the 24INV except that the operating time delay is definite Use this function
64. your computer must be set to the same baud rate To change the baud rate of a relay serial port 1 Access the relay s user interface through any of the available ports 2 Login to the user interface and go to the Utilities gt Setup gt Ports menu for details see Terminal Mode on page 3 5 3 Select the desired baud rate for the appropriate port by toggling through the options using the Space or Enter keys Save the new setting with the F2 key The message New communications settings loaded will appear The new baud rate will be used on that port the next time you login to it To change the baud rate on your computer s serial port 1 From HyperTerminal bring up the Properties dialog box press the Config ure button and set the baud rate field to the desired value 2 Save the changes Unlike a direct serial link the baud rates for a modem link do not have to be the same on your computer and on the relay The modems automatically nego tiate an optimal baud rate for their communication The baud rate set on the relay only affects the rate at which the relay commu nicates with the modem Similarly the baud rate set in HyperTerminal only af fects the rate at which your computer communicates with its modem Details on how to set these respective baud rates are described in Modem Link Ex ternal on page 2 3 except that you modify the Port 2 baud rate on the relay and the properties of the modem in HyperTerminal T PRO User
65. 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 8 ProLogic 8 ProLogic 8 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 9 ProLogic 9 ProLogic 9 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 T PRO User Manual 8700 Appendix B 17 Appendix B IED Settings and Ranges Appendix B 18 T PRO Settings Summary Name Symbol Value Unit Range Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 10 ProLogic 10 ProLogic 10 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt Re
66. 0 A so no correction factor is re quired If you use this method injecting A B will result in a minimum operat ing current of 1 0 0 30 0 30 A Single Phase Method 2 Test Procedure 1 Connect current source 300 302 Jumper 301 303 Slowly ramp current up At 0 29 0 31 A expect 0 301 A 87 Trip lt High Testing 87 LV Minimum Operate Single Phase To test single phase perform the same process as on the HV side again use Analog Phase Shift Table in Appendix L For a 30 shift which is what is present on the LV Side Delta 30 Wye 0 30 use the 30 formulae to null the angle To inject 1 0 A on Phase A only on the LV Side 1 IA L 05774 3 ac A3 jp Pole 0 0 0 43 43 3 jc ela M O _ A 9 5774 3 3B Note that the strongest phases are IA and IC so they will operate first D01386R04 20 T PRO User Manual 8700 6 27 6 Acceptance Protection Function Test Guide 87 2nd Harmonic Restraint Test 6 28 For the T PRO to see 0 30 A on Phase A you need to inject V3 0 30 A 0 52 A since the T PRO will only sees 1 N3 of the current injected For further clarification see the full example provided in T PRO Differential Slope Test Example on page 6 33 End of 87 test Settings I2 Cross Blocking Enabled I2 2nd Harmonic 0 30 per unit 2nd Harmonic Restraint if gt 30 of fundamental current 2nd Harmonic Restraint Test Procedure 1 In Terminal
67. 02 303 1 0 A 2120 Ph C 304 305 1 0 A Z120 3 Slowly ramp the 3 phase currents up At 1 15 to 1 25 A expect 1 20 A 51 Alarm High Output Contact 7 Closed 4 Continue to raise currents At 1 45 to 1 55 A expect 1 50 A 50 Trip High Output Contact 14 Closed 5 Turn currents off 51 Alarm lt Low Output Contact 7 Open 50 Trip lt Low Output Contact 14 Open 6 18 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide Timing Test 1 Monitor timer stop on Output Contact 2 2 Settimer start from 3 phase 0 0 A to 3 60 A transition This equates to 3x pickup Time TMS E T E edi 0 0982 4 0 0982 a radu 2 355 Delay ilja i 3 1 9 51ADP Adaptive Settings Pickup Test e Nameplate Cooling Type 1 Self Cooled OA or OW Ambient Temperature Scaling 4mA 40 C 20mA 40 C 51ADP Multiple of Normal Loss of Life 1 0 51 HV ADP Enabled 51 HV ADP Pickup To 51 Pickup T Ambient Adjustment Figure 6 17 Logic Overcurrent Adaptive Pickup 51ADP 51ADP Test Procedure To simulate an ambient temperature of 30 C inject 18 0 mA dc into the Am bient Temperature Input 230 231 In Metering gt Trend confirm a 30 C reading Using the graph Figure M 3 Allowed Loading 65 C Rise Transformer Type 1 Cooling on page M 4 see that at 30 C the overload characteristic is de rat ed to 1 0 per unit for a relative loss of life setting of 1 0
68. 0772 Indicates the number of 16 bit registers used to contain the current event Event data is stored with two characters per register A reading of zero indi cates that there are no unacknowledged events available in the current set N B The Refresh Event List function can be used to check for new events that have occurred since the last Refresh Event List Read Event Message T PRO User Manual 8700 Function Code 3 addresses 40774 40832 Contains the current event message Two ASCII characters are packed into each 16 bit register All unused registers in the set are set to 0 D01386R04 20 D01386R04 20 Appendix E Modbus RTU Communication Protocol T PRO User Manual 8700 Modbus Event Message Example 2000 Sep21 20 16 16 966 Diff 87 on ABC Trip Register Value Meaning High Byte Low Byte 40772 0x00 0x1D Event text size 29 0x1D hex 40773 0x20 0x20 lt sp gt lt sp gt 40774 0x32 0x30 2 0 40775 0x30 0x30 0 0 40776 0x53 0x65 S e 40777 0x70 0x32 pune 40778 0x31 0x20 1 esp 40779 0x32 0x30 2 0 40780 Ox3A 0x31 gl 40781 0x36 0x3A 6 40782 0x31 0x36 v 6 40783 Ox2bE 0x39 A59 40784 0x36 0x36 6 6 40785 0x20 0x3A lt sp gt 40786 0x20 0x44 lt sp gt D 40787 0x69 0x66 af 40788 0x66 Ox2bE po 40789 0x20 0x28 esp 40790 0x38 0x37 Bo
69. 1 0 1 5 2 15 tf Hot day Cold day A 0 0010 to 1000 0 B 0 0000 to 10 00 p 0 01 to 10 0 TR 0 10 to 100 00 51ADP Enable disable Multiple of Normal LOL 0 5 to 512 0 Current per unit Figure 4 12 Ambient Temperature Adaption Ambient Temperature Adaption ADP adjusts the pickup level of device 51HV based on the ambient temperature a user entered multiplier of normal loss of life and the equations defined in IEEE standard C57 92 1981 The ad aptation function is executed at a rate of one time per second If this function is enabled the calculated adaptive pickup value becomes the device 51HV pickup setting The 51 ADP function re shapes the inverse time T PRO User Manual 8700 4 21 4 Protection Functions and Specifications 50N 51N Neutral Overcurrent 4 22 curve only in the overload region up to 2 15 per unit for details see Figure 4 12 Ambient Temperature Adaption on page 21 If the ambient temperature signal is out of range the pickup of device SIHV reverts to the user set value 51ADP Adaptive Overcurrent Cold Climates If this function is turned on the 51HV pickup is affected by the ambient tem perature input and the rate of loss of life setting value If this function is not used the 51HV pickup is not affected Ifrate of loss of life is set to one and ambient temperature is 30 degrees Celsius the pickup level of 51 will be 1 0 per unit Use the curves in Example 1 Loss of Life of Solid Ins
70. 20 Appendix N Top Oil and Hot Spot Temperature Calculation The parameters used in calculating the Top Oil and Hot Spot Winding tem peratures as functions of the ambient temperature and the load current are as shown below Based on IEEE ANSI Standards C57 115 1991 and C57 92 1981 Parameters for 65 C Rise Transformers Cooling Type OA or OW FA 133 or less FA more than Non directed FOA Directed FOA or Type 1 Type 2 133 Type 4 or FOW Type 5 FOW Type 3 AHR C 25 30 35 35 35 A TO R C 55 50 45 45 45 TTO hours 3 0 2 0 1 25 1 25 1 25 TW hours 0 08 0 08 0 08 0 08 0 08 R 3 2 4 5 6 5 6 5 6 5 m 0 8 0 8 0 8 0 8 1 0 n 0 8 0 9 0 9 1 0 1 0 Parameters for 55 C Rise Transformers Cooling Type OA or OW FA 133 or less FA more than Non directed FOA Directed FOA or 133 or FOW FOW AHR C 20 25 28 28 28 A TO R C 45 40 37 37 37 TTO hours 3 0 2 0 1 25 1 25 1 25 TW hours 0 08 0 08 0 08 0 08 0 08 R 3 0 3 5 5 0 5 0 5 0 m 0 8 0 8 0 8 0 8 1 0 n 0 8 0 9 0 9 1 0 1 0 D01386R04 20 T PRO User Manual 8700 Appendix N 1 Appendix N Top Oil and Hot Spot Temperature Calculation The meanings of the symbols and the eguations used are as follows AHR rated hot spot rise over top oil in C A9TO R rated top oil rise over ambient in C TTO top oil rise time constant in hours Tw hot spot winding rise
71. 5 00 to 20 00 Min Correlating Current Value 4 00 mA 4 00 to 19 00 Protection Summary 87 Enabled 87N HV Enabled 87N LV Enabled 87N TV Enabled T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range TOEWS Enabled 24INV Enabled 24DEF Enabled 59N Enabled 27 1 Enabled 27 2 Enabled 60 Enabled 81 1 Fixed Level 81 2 Rate of Change 81 3 Fixed Level 81 4 Rate of Change 50 HV Enabled 51 HV Enabled 50 LV Enabled 51 LV Enabled 50 TV Enabled 51 TV Enabled 51ADP Enabled 50N HV Enabled 51N HV Enabled 50N LV Enabled 51N LV Enabled 50N TV Enabled 51N TV Enabled 67 Enabled THD Enabled 87 Differential 87 Enabled lOmin 0 30 pu 0 10 to 1 00 IRs 5 00 pu 1 50 to 50 00 S1 20 00 6 00 to 40 00 S2 40 00 20 00 to 200 00 High Current Settings 10 00 pu 0 90 to 100 00 12 Cross Blocking Enabled I2Setting 0 30 pu 0 05 to 1 00 I5 Disabled I5 Setting 0 30 pu 0 05 to 1 00 87N Neutral Differential T PRO User Manual 8700 Appendix B 5 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range II 87N HV Enabled lOmin 0 30 pu 0 10 to 1 00 IR
72. 59N Trip 40 N A Dev 59N Alarm 41 N A Dev 60 Alarm 42 N A THD Alarm 43 N A Self Check Fail 44 N A Ambient Temp Alarm 45 N A Top Oil Temp Alarm 46 N A Dev 49 1 Trip Alarm 47 N A Dev 49 2 Trip Alarm 48 N A Dev 49 3 Trip Alarm 49 N A Dev 49 4 Trip Alarm 50 N A Dev 49 5 Trip Alarm 51 N A Dev 49 6 Trip Alarm 52 N A Dev 49 7 Trip Alarm 53 N A Dev 49 8 Trip Alarm 54 N A Dev 49 9 Trip Alarm 55 N A Dev 49 10 Trip Alarm 56 N A Dev 49 11 Trip Alarm 57 N A Dev 49 12 Trip Alarm 58 N A Dev 87NHV Trip 59 N A Dev 87NLV Trip 60 N A Dev 87NTV Trip 61 N A TOEWS 15 Minute Alarm 62 N A TOEWS 30 Minute Alarm 63 N A TOEWS Trip 64 N A ProLogic 1 Trip 65 N A ProLogic 2 Trip 66 N A ProLogic 3 Trip 67 N A ProLogic 4 Trip 68 N A ProLogic 5 Trip 69 N A ProLogic 6 Trip 70 N A ProLogic 7 Trip 71 N A ProLogic 8 Trip 72 N A ProLogic 9 Trip 73 N A ProLogic 10 Trip 74 N A 81 1 Trip 75 N A 812 Trip 76 N A T PRO User Manual 8700 Appendix F DNP3 Communication Protocol Appendix F 5 Appendix F DNP3 Communication Protocol 81 1 Trip 77 N A 81 2 Trip 78 N A 27 1 79 N A 27 2 80 N A I I t Alarm 81 N A Analog Inputs Obj 30 31 Static Points Change Event Points Object Group 30 32 Object Variation 1 32 bit Analog Input 1 Analog Input Change 32 bit without Time 2 16 bit Analog Input 2 Analog Input Change 16 bit without Time default 3 32 bit Analog Input without flag 3
73. 6R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range 59N Enabled 3V0 Pickup 80 00 V 75 00 to 150 00 Curve Type IEC very inverse TMS 0 50 0 01 to 10 00 A 13 5000 B 0 0000 p 1 00 TR 47 30 0 10 to 100 00 27 Undervoltage 27 1 Enabled Gate Switch AND Pickup 10 0 V 1 0 to 120 0 Pickup Delay 0 00 s 0 00 to 99 99 27 2 Enabled Gate Switch AND Pickup 10 0 V 1 0 to 120 0 Pickup Delay 0 00 s 0 00 to 99 99 60 Loss of Potential Alarm 60 Enabled 81 Over Under Freguency 81 1 Fixed Level Pickup 61 000 Hz 50 000 59 995 or 60 005 70 000 Pickup Delay 2 00 s 0 05 to 99 99 81 2 Rate of Change Pickup 10 0 Hz s 10 0 0 1 or 0 1 10 0 Pickup Delay 2 00 s 0 20 to 99 99 81 3 Fixed Level Pickup 61 000 Hz 50 000 59 995 or 60 005 70 000 Pickup Delay 2 00 s 0 05 to 99 99 81 4 Rate of Change Pickup 10 0 Hz s 10 0 0 1 or 0 1 10 0 Pickup Delay 2 00 s 0 20 to 99 99 50 51 Phase Overcurrent HV 50 HV Enabled Pickup 1 50 pu 0 10 to 20 00 T PRO User Manual 8700 Appendix B 11 Appendix B IED Settings and Ranges Appendix B 12 T PRO Settings Summary Name Symbol Value Unit Range a Pickup
74. 9N Alarm lt Low Output Contact 2 lt Open Timing Test 1 Monitor timer stop on Output Contact 6 2 Set timer start from 3 phase 0 0 V to 50 0 V transition all at 0 3V0 50 50 50 150 V This equates to 2x pickup Time Delay TMS B 02 0 0 14 oa ps eco 150 0 014 d 75 i A 3VO y E Pickup End of 59N test 6 12 T PRO User Manual 8700 D01386R04 20 27 27 1 Single Three Phas 27 2 hase AND Th Lag D01386R04 20 6 Acceptance Protection Function Test Guide This example testing 27 2 only in this procedure but testing 27 1 is just a mat ter of enabling the function and reducing only one phase voltage Settings 27 1 Gate OR single phase 27 1 Pickup 50 V secondary 27 1 Delay 0 5 seconds 27 2 Gate AND 3 phase e 27 2 Pickup 50 V secondary 27 2 Delay 0 6 seconds 27 1 Undervoltage 27 Va 27 Vb 188 a 7 7 Lh 189 o 27 2 Undervoltage 27 Va A 27 Vb 190 mo 27 Vc ET HA outa Figure 6 12 Logic UnderVoltage 27 27 Three Phase Undervoltage Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 27 2 Alarm 2 Apply balanced 3 phase voltage to the T PRO terminals as follows Ph A 330 66 4 V 20 Ph B 331 66 4 V 120 Ph C 332 66 4 V Z120 Ph N 333 3 Slowly ramp the 3 phase voltage magnitudes down At 50 5 to 49 5 V per phase expect 50 0 V
75. B 331 66 4 V 120 Ph C 332 66 4 V Z1120 Ph N 333 Observe 60 Alarm lt Low 5 Ramp down single phase voltage At 33 6 to 32 8 V setting 0 5 per unit 66 4 2 33 2 V secondary 60 Alarm lt High T PRO User Manual 8700 6 9 6 Acceptance Protection Function Test Guide 24 Overexcitation Test 6 10 6 Turn all voltage off 60 Alarm lt Low Timing Test 1 Monitor timer stop on Output Contact 7 2 Set timer to start from single phase 0 0 V to 66 4 V transition i e V off to on Time Delay definite lt 10 seconds End of 60 test Settings 24INV Pickup 1 2 per unit 1 2 66 4 V 60 Hz 79 7 V 60 Hz K lt 0 1 24DEF Pickup 1 25 per unit 1 25 66 4 V 60 Hz 83 V 60 Hz 24DEF Enabled BIR 24VPOS Freg hr x poe Out 7 24INV Enabled Out 4 24VPOS Freq NEN Figure 6 10 Logic Overexcitation 24 24INVerse and 24DEFinite Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following elements for pickup 24INV Alarm 24DEF Trip 2 Apply balanced 3 phase nominal voltage to the T PRO terminals Ph A 330 66 4 V Z0 Ph B 331 66 4 V 7 120 Ph C 332 66 4 V Z120 Ph N 333 3 Slowly ramp the 3 phase voltage up At 79 5 80 5 V expect 79 7 V 24INV Alarm High Output Contact 7 Closed At 82 5 83 5 V expect 83 0 V 24DEF Trip High Output Contact 1 Closed 4 Turn voltages off 24INV Alarm Low Output Contact 7 Open
76. C57 115 1991 is written differently but is identical mathematically C57 91 1995 is under review as of November 2001 A new version may be is sued in the year 2002 There are two basic ideas here based on ANSI IEEE Standards C57 92 1981 and C57 115 1991 for Mineral Oil Immersed Power Transformers 1 When the ambient temperature is low a transformer can carry more load when high less load 2 Itis OK to exceed the transformer rated hot spot winding temperature for a limited time The T PRO Relay implements these ideas as follows When Ambient Temperature Adaptation is selected the pickup level of the overcurrent protection follows the Allowed Loading curves below which are calculated in accordance with the Standards An ambient temperature probe feeds information into the back of the relay Five different cooling types are ac commodated in accordance with the Standard T PRO User Manual 8700 Appendix M 1 Appendix M Loss of Life of Solid Insulation Appendix M 2 ab EM eko e oo Allowed Loading per unit c c3 o c N B Oo 2 6 4 2 1 8 Relative rate of loss of life 64 top curve 32 16 0 Example 1 Suppose the transformer is 65 C rise cooling is type 5 Forced Air Cooled OA FA FA and a relative rate of loss of life of 1 has been selected Then the overload characteristic pickup will automatically be one per unit when the Ambient Temperature is 30 C because that is the design
77. E IC 2la Ib Ic IC la Ic 3 J3 0 Shift 180 Shift ja 2la Ib Ic ja c 2la Ib 3 3 IB 21b Ic Ia IB la 21b Ic 3 3 0x ZAL IC UZ T PRO User Manual 8700 D01386R04 20 Appendix M Loss of Life of Solid Insulation Adaptive Overcurrent Relay Pickup Level Feature D01386R04 20 The loss of life calculation equation is based on IEEE Standard C57 91 1995 The per unit rate of loss of life is called the aging acceleration factor F4 4 giv en by 15000 15000 110 273 0 4273 Page per unit Eq 2 of C57 91 1995 where Oy is the hot spot temperature in degrees celsius For example if 0 7 110 C then Fa 1 if Oy 17 C then FAA 2 The definition of normal lifetime for a transformer was 65 000 hours 7 42 years in C57 115 1991 In C57 91 1995 options were given including 65 000 hours but suggesting that 180 000 20 55 years hours was more reasonable This is really ajudgment call Since the 65 000 hour 7 42 years figure appears in both versions of the Standard it was decided to use 7 42 years in the T PRO software until a more definitive statement appears The above eguation is the same regardless of which end of life value is cho sen For example if Faq is on average equal to 0 2 not unusual over a period of 20 years then the loss of life over that period would be 0 2 x 20 years 7 42 years 54 The eguation in the previous standard
78. Fault Count 522 N A 1 Read Input Register Function Code 04 No input registers supported Response from IED indicates ILLEGAL FUNCTION Force Single Coil Function Code 05 Only the hold readings coil can be forced When active this coil locks all coil input and holding register readings simultaneously at their present values When inactive coil input and holding register values read their most recently available state Channel Type Address Value Hold Readings Read Write 01 0000 Readings update normally inactive FFOO Hold readings active Preset Single Register Function Code 06 Channel Address Value Scaled Up By Event Message Control See below for details of use Refresh event list 40769 No data required N A Acknowledge the current event and get the next 40770 No data required N A event Get the next event without acknowledge 40771 No data required N A Diagnostic Subfunctions Function Code 08 Return Query Data Subfunction 00 This provides an echo of the submitted message Restart Comm Option Subfunction 01 This restarts the Modbus communications process Force Listen Only Mode Subfunction 04 No response is returned IED enters Listen Only mode This mode can only be exited by the Restart Comm Option command D01386R04 20 T PRO User Manual 8700 Appendix E 7 A
79. G B and comm parts shown separately on T PRO rear panel layout drawing 371003 2 Al output relays can be programmed to operate on any relay function 3 All outputs are rated tripping duty interrupting via breaker aux a contact Notes Appendix J 1 Appendix K Function Logic Diagram Diagram in plastic sleeve D01386R04 20 T PRO User Manual 8700 Appendix K 1 Appendix L Analog Phase Shift Table D01386R04 20 30 330 Shift 60 300 Shift g4 lab ja lac 21b Ic NE 3 IB b lc IB 0 2lc t la 3 3 pe lt lt la pe lt Z la 1b 4 3 3 90 270 Shift 120 240 Shift g4 TE 1A 2e la Ib NG 3 IB la Ic IB 2la Ib Ic 3 3 ig Ib Ta w 21b Ic Ia NE 3 150 210 Shift 30 330 Shift Ic Ia Ia Ic IA IA 3 3 Ia Ib Ib Ia IB lt IB lt 3 3 Ib Ic Ic Ib IC lt IC 3 3 T PRO User Manual 8700 Appendix L 1 Appendix L Analog Phase Shift Table Appendix L 2 60 300 Shift 90 270 Shift IA tamle Ib ja toate 3 3 IB b 21a Ic Ip eda 3 3 pe 6 21b la je asi 3 Ne 120 240 Shift 150 210 Shift 14 2Ib Ic la 1A Iba 3 3 IB 2lc Ia Ib IB Ic Ib 3 N
80. Mode access T PRO Metering gt Logic Monitor the following elements for pickup 87 Trip 87 Restraint 2 Apply parallel currents to Terminals 300 302 Jumper 301 303 Source 1 Fundamental 1 0 A 40 Terminals 300 302 Source 2 2nd Harmonic 0 40 A 40 also Terminals 300 302 Observe 87 TRIP Low 87 Restraint High 3 Slowly ramp down Source 2 At 0 31 to 0 29 A expect 0 301 A 87 Trip High 87 Restraint Low End of 2nd harmonic restraint test T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide 87 High Current Settings Setting Test High Current Setting 5 0 per unit IO pu IOH High Setting lOmin IR pu IRmin IRs Figure 6 21 High Current Setting 87 High Current Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following elements for pickup 87 Trip 87 Restraint 87 FastTrip 2 Apply parallel currents to Terminals 300 302 as follows Jumper 301 303 Source 1 Fundamental Frequency 4 0 A Z0 Terminals 300 302 Source 2 2nd Harmonic 4 0 A Z0 also Terminals 300 302 3 Ramp Source up At 4 90 to 5 10 A expect 5 0 A 87 Trip High 87 Restraint Low 87 FastTrip High Note This test proves that when the High Current Setting is exceeded the 87 will operate and 2nd Harmonic has no restraint affect 4 Remove test currents End of High Current setting test D01386R04 20 T PRO User Manual 8700 6 29 6 Acc
81. O operating and IR restraint values to be tested 3 Calculate Iy and I v per unit currents for a given IO and IR 4 Adjust angles by analog phase shift and convert Ijy and Ij y per units to amperes 5 Apply Ijyy and lj y with 3 phase sources Set reference side at zero degrees 0 0 and the opposite side at the opposing angle In this example 180 30 150 to account for the 30 delta shift T PRO User Manual 8700 6 43 6 Acceptance Protection Function Test Guide T PRO Single Phase Slope Test Steps to perform Single Phase Testing 6 44 1 Perform the current calculations for 3 phase testing from the previous sec tion Determine the natural current phase shift into each of the current inputs of the T PRO relay and thus the compensating angle required to null that an gle e g a delta 30 connection requires a 430 shift so use the 30 shift formula see Analog Phase Shift Table in Appendix L Determine which phase to inject on each side Apply the additional magnitude correction factor to the calculated 3 phase test currents Monitor Metering gt Operating values in the T PRO relay to check This screen shows the current phasors that the T PRO uses for differential calculations af ter performing phase shift manipulations as well as the per unit operating and restraint currents KF3 gt Quit F2 Freeze Nain TAKAS HE i User f Level CHRNGE 2003Mar25 09 35 ain Menu Meterin ser Access
82. Operating Operating metering provides the winding phase current in secondary amps as well as the IO and IR currents in pu Secondary amps refer to the reference CT input which is the first CT on the PT side Note that the reference CT input must be used because different CT ratios are allowed on the same voltage level side The positive sequence frequency is displayed Analog Analog metering displays all secondary values of the voltage and current in puts as well as the temperature input mA values Logic Logic metering displays the status of all internal logic including alarm and trip states of all the relay elements ProLogic ProLogic metering displays the status of all the ProLogic I O T O metering shows the status of all external inputs and output contacts Trend Trend metering shows the current status of all trend quantities These quanti ties are MW MVAR HV current Device 51 pickup level THD ambient top oil hot spot temperature and transformer loss of life Dev49 TOEWS Dev49 TOEWS metering displays the current values of the quantities used for the 49 device as well as the status of TOEWS alarms and trip T PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications Protection and Recording Functions This section describes the eguations and algorithms of the relay protection functions All functions with time delay provide an alarm output when their pick up level is exceeded All functi
83. P user group web page www dnp org Ob ject 110 always contains the most recent event in the relay Object 111 is the corresponding change event object As stated in the DNP technical bulletin the variation of the response object represents the length of the string The string represents the ASCII values of the event text The following example shows an event returned through either of the octet string objects DNP Example Event Message 2000Sep21 20 16 16 966 Diff 87 on ABC Trip DNP Octet string object contents 0x46 Ox4C 0x32 0x30 0x30 0x30 0x53 0x65 0x70 0x32 0x31 0x20 0x32 0x30 0x3A 0x31 0x36 0x3A 0x31 0x36 Ox2E 0x39 0x36 0x36 0x20 Ox3A 0x20 0x44 0x69 0x66 0x66 Ox2E 0x20 0x28 0x38 0x37 0x29 0x20 Ox6F 0x6E 0x20 0x41 0x42 0x43 0x3A 0x20 0x54 0x72 0x69 0x70 T PRO User Manual 8700 Appendix F 9 Appendix G Mechanical Drawings Side View Panel cut out hole 17 19 x 5 17 Figure G 1 Mechanical Drawing D01386R04 20 T PRO User Manual 8700 Appendix G 1 Appendix G Mechanical Drawings g E cECE o ES Lr O TO OGB NG 3 TOTO O ss 5 o e e Figure G 2 Cut out Template Appendix G 2 T PRO User Manual 8700 D01386R04 20 307 9 mm 1212 T PRO 3t O Relay Functional O IRIG B Functional OO Service Required D Test Mode O Aarm Date amp View
84. RTS lt 7 CTS gt 8 No connection 9 e Relay with modem adapter is DTE modem is DCE Pins 1 and 6 are tied together internal to the relay T PRO User Manual 8700 2 Setup and Communications Maintenance Menu The relay has a Maintenance Menu that can be accessed by connection through a VT 100 terminal emulator such as the Hyper Terminal Using either direct serial or modem connection 1 Use the terminal program to connect to the serial port either through direct serial link or modem 2 Select Enter the relay responds with a login prompt 3 Login as maintenance in lower case A menu appears as below NxtPhase System Utility v1 3 NxtPhase Corporation Customer support 204 477 0591 support nxtphase com Modify IP Address subnet mask and default gateway if applicable View system diagnostics Retrieve system diagnostics Restore ALL default settings including calibration Pid only default configuration settings channel definitions device se tings Restore only default system setup ports time settings Force hardware reset View network statistics if applicable Monitor SCRDR 10 Enable Disable Internal Modem if one exists 11 Exit KO COM De OE CON x port 1 access only Please enter a command 1 11 Figure 2 5 Commands 1 4 5 6 7 and 10 are Port 1 access only Modify IP address Modifies the LAN IP address when equipped with an optional internal 10B
85. Sms Block 87 2nd Harmonics Restraint Signal I5 Restraint Enabled allows the T PRO s differential element to be blocked us ing 5th harmonic current restraint This prevents the 87 element from misop erating during a high over voltage system condition During the high voltage condition there is an increase in 5th harmonic current causing the current wave shape to distort creating an unbalance in the differential current circuit This unbalance is not a true transformer differential so this is a false trip condition that should be blocked Se 87 Transformer Differential Setting Ranges 87 Transformer Differential Enable disable lOmin pu 0 1 to 1 0 pu IRs pu 1 5 to 50 pu T PRO User Manual 8700 4 3 4 Protection Functions and Specifications S1 6 40 S2 20 200 High Current Setting pu 0 9 100 pu I2 Cross Blocking Enable Disable I2 Setting pu 0 05 to 1 00 15 Restraint Enable disable 15 Setting pu 0 05 to 1 00 HV LV and TV winding current calculations The T PRO has 5 three phase current inputs that can be used to sum currents going into a transformer winding These inputs can be configured to have dif ferent CT ratios and CT connections This flexibility reguires that certain cor rections be carried out before summing them to get the winding current This process includes three steps Selection of reference current in
86. T 40791 0x29 0x20 P 40792 Ox6F Ox6E o n 40793 0x20 0x41 lt sp gt A 40794 0x42 0x43 B C 40795 Ox3A 0x20 7 lt sp gt 40796 0x54 0x72 ES 40797 0x69 Ox70 bp Appendix E 9 Appendix F DNP3 Communication Protocol The SCADA port supports DNP3 All metering values available through the terminal user interface are available by DNP3 protocol Included are the device profile implementation table and the point list for the DNP3 protocol Device Profile D01386R04 20 Vendor Name ERLPhase Power Technologies Ltd Device Name Relay Model Highest DNP Level Supported For Requests 2 For Responses 2 Device Function _ Master x Slave Maximum Data Link Frame Size octets Transmitted 292 Received 292 Maximum Application Frame Size octets Transmitted 2048 Received 2048 Maximum Data Link Re tries None x Fixed at 3 Configurable range to Maximum Application Layer Re tries x None Configurable range to Requires Data Link Layer Confirmation x Configurable either always or never Requires Application Layer Confirmation Never _ Never Always Always not recommended Sometimes x When reporting Event Data Slave x When sending multi fragment responses Slave Maximum number of control objects per request 16 Notes Control Trip Close Code Combination supported Latch On NUL Latch Off NUL Pulse On NUL Pulse du
87. Type 1 cooling 214 5 o 2 5 I S Relative rate of loss of life 0 8 Eo 64 top curve E 32 80 6 16 x o P o N 0 40 35 30 25 20 15 10 5 O 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 3 Allowed Loading 65 C Rise Transformer Type 1 Cooling Allowed Loading 65 degC rise Transformer Type 2 cooling Relative rate of loss of life 64 top curve 32 16 Allowed Loading per unit 40 35 30 25 20 15 10 5 O 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 4 Allowed Loading 65 C Rise Transformer Type 2 Cooling Appendix M 4 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Allowed Loading 65 degC rise Transformer Type 3 cooling Appendix M Loss of Life of Solid Insulation 2 1 8 1 6 E 14 12 2 O 8 0 8 Relative rate of loss of life lt ks 64 top curve 32 806 46 Pa 8 o4 4 2 0 2 1 bottom curve 0 40 35 30 25 20 15 10 0 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 5 Allowed Loading 65 C Ri
88. VT 100 emulation and pro vides z modem file transfer services can be used The HyperTerminal pro gram which is included in Windows XP and is also available separately as HyperTerminal PE is used here as an example Configure your terminal program as described in the table below and link it to the appropriate serial port modem or TCP IP socket on your computer Terminal Program Setup Baud rate For a direct serial link the baud rate must match that of the relay serial port For a modem link the baud rate refers only to the link between your computer and its own modem Refer to Setting the Baud Rate on page 2 7 for further information Data bits 8 Parity None Stop bits 1 Flow control Hardware or Software Hardware flow control is recommended The relay automatically sup ports both on all its serial ports Function arrow Terminal keys and control keys Emulation VT100 T PRO User Manual 8700 2 5 2 Setup and Communications Terminal Program Setup Use a font that supports line drawing e g Terminal or MS Line Draw If the menu appears outlined in odd characters the font you have selected is not supporting line drawing characters To initiate a connection with the relay use Hyper Terminal s Call gt Connect function When the connection is established press Enter in the terminal window to bring up the following login prompt Log in using one of the following usernam
89. Z0 0 T PRO User Manual 8700 6 25 6 Acceptance Protection Function Test Guide If you inject 1 0 A on Phase A only on the high side the values below can be confirmed in Metering gt Operating ga 2la Ib Ie 2 1 0 0 24 3 3 2Ib Ic la 2 0 0 1 _ 1 IB 3 3 34 2le la Ib 2 0 1 0 1 IC 3 3 34 Note that the strongest phase is IA so IA operates first From the 3 phase test section note that IO nin 0 30 A For the T PRO to see 0 30 A on Phase A inject 3 2 0 30A 0 45 A since the T PRO only sees 2 3 the current injected Single Phase Method 1 Test Procedure 1 Connect current Source 300 301 Slowly ramp current up At 0 44 to 0 46 A expect 0 45 A 87 Trip High 2 Turn current off 87 Trip lt Low 6 26 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide Method 2 Another way to do the single phase test is to use a single source injected A B into Terminal 300 out of 302 with 301 and 303 jumpered together So if you use 1 0 A then Phase A 1 0 40 41 0 A and phase B 1 0 24180 1 0 A Apply the Phase Shift formulae from Analog Phase Shift Table in Appendix I IA _ 2a Ib Ic 2M1 l 0 3 1 35 104 _ 2lb lc la 2 1 0 1 3 CEU Ta P 1 04 IB _ 2lc la Ib 2 0 1 C1 0 IC 3 s 3 04 In this case see that the strongest phases are both A and B so they will operate first Inject 1 0 A and the T PRO will see 1
90. ac input voltage lt 0 15 VA 67 V ac input current lt 0 25 VA 5 A D01386R04 20 T PRO User Manual 8700 Appendix A 1 Appendix A IED Specifications Analog Input Sampling T PRO Model 8700 Specifications Sample rate 96 samples cycle for pro tection algorithm 8x cycle for protection External Inputs 9 isolated inputs Optional 48 125 or 125 250 Vdc Optional 48 to 125 or 125 to 250 Vdc nominal externally wetted Burden Burden resistance gt 10 k ohms Isolation Internal optical isolation 1 ms resolution Sample rate 1 ms resolution Output Relays contacts 14 programmable outputs plus relay inoperative contact Make 30 A as per IEEE C37 90 Carry 8 A Break 0 9 A at 125 Vdc resistive 0 35 A at 250 Vdc resistive Interface amp Communication Front Display 2 lines x 24 characters fluorescent Exceptional visibility in all ambient light conditions Front Panel Indicators 6 LEDs Target Relay Functional IRIG B Func tional Service Required Test Mode Alarm Serial User Interface Front and rear RS 232 ports to 115 K baud Rear port can support an external modem Internal Modem 33 6 Kbps V 32 bis Optional internal modem Network 10BaseT Ethernet port Optional Ethernet card SCADA Interface DNP3 RS 232 or Ethernet or Modbus RS 232 Rear port Time Sync IRIG B BNC connector Modulated or unmodulated auto detect
91. anned with 500 ms resolution No change buffer D01386R04 20 T PRO User Manual 8700 Appendix F 3 Appendix F DNP3 Communication Protocol Appendix F 4 Binary Outputs Point Index Change Event Class Output Contact 1 0 N A Output Contact 2 1 N A Output Contact 3 2 N A Output Contact 4 3 N A Output Contact 5 4 N A Output Contact 6 5 N A Output Contact 7 6 N A Output Contact 8 7 N A Output Contact 9 8 N A Output Contact 10 9 N A Output Contact 11 10 N A Output Contact 12 11 N A Output Contact 13 12 N A Output Contact 14 13 N A Dev 87 Trip 14 N A Dev 87 Restrain 15 N A Dev 87 Fast Trip 16 N A Dev 51HV Trip 17 N A Dev 51HV Alarm 18 N A Dev 50HV Trip 19 N A Dev 51LV Trip 20 N A Dev 51LV Alarm 21 N A Dev 50LV Trip 22 N A Dev 51TV Trip 23 N A Dev 51TV Alarm 24 N A Dev 50TV Trip 25 N A Dev 51NHV Trip 26 N A Dev 51NHV Alarm 27 N A Dev 50NHV Trip 28 N A Dev 51NLV Trip 29 N A Dev 51NLV Alarm 30 N A Dev 50NLV Trip 31 N A Dev 51NTV Trip 32 N A Dev 51NTV Alarm 33 N A Dev 50NTV Trip 34 N A Dev 67 Trip 35 N A Dev 67 Alarm 36 N A T PRO User Manual 8700 D01386R04 20 D01386R04 20 Dev 24INV Trip 37 N A Dev 24INV Alarm 38 N A Dev 24DEFTrip 39 N A Dev
92. ar target push button Push buttons to manipulate information on LED display OGR0ONA Figure 1 2 T PRO Front View Back View o o Bxtemal 125V00 7 izwpc 3f izevoc JE 125V00 7 tasvoo i DC i tasvoc jr 1200 1 mac 7f Wes TISA LG GG Le SING IMG AA GS ig a gt e e e Ko Ka XU GU GU Oe GE GU Gm GU Uo Gu i i Gu Guo GE WT Capa Terpaaureirpas Onriadts ila Ot 7 042 OO 7 98 ON OT OL Tot OA OMI OE OI uis a z gt Labao es ss a ar a es fc ss sl Ee Eee Ko ZO Mm Z2 25 2x 25 25 ar Z5 aw 0 FM 22 I8 I4 25 26 27 7 28 25 Zi m m m Z5 T5 m TB TB ZM AU AASAASCDPAAAA VV w po m 15 gt BM PR PR PRRE AS AMV dagga ae gaga REPAR PRAPOR RALE O 3X9 Xi 3 385 34 35 35 37 35 36 3U Gv GU GU GR GE 36 3 me me m Gi XZ m Gu 35 38 W ES GS MW MW MW MOM E O ri n 7 Port 5 10BaseT Ethernet Port Internal Modem optional 8 External clock IRIG B modulated or unmodulated 9 Port 2 Direct Modem RS 232 Port 10 Port 3 SCADA 11 Port 4 unu
93. are stored in a circular buffer volatile memory Protection Functions IEEE Dev 87 87N 49 TOEWS 24 SON 27 60 81 50 51 50N 51N 67 and THD 2 or 3 winding transformer with up to 5 sets of CT inputs Fault protection overload management as well as monitoring and fault recording Recording Fault 96 s c oscillography of all analog and Viewing software provides waveform external input channels symmetrical components and harmonic Capacity up to 15 x 2 second records analysis Trend Variable rate logging of MW MVAR Variable length dependant on sample Ambient Temperature and Loss of Life rate Top Oil Hot Spot Temperature HV Cur rent 51HV pickup level and THD Events 250 events Circular event log A D Resolution 13 bits 8192 counts full scale Input amp Output Analog Input Channels 15 currents and 3 voltages transformer protection and recording Rating n 5Aor1AVn 69V Continuous 3x In 2x Vn One Second 20x In without distortion Temperature Inputs Ambient and Top Oil Capable of receiving 2 sets of isolated 4 20 mA current loops for ambient and top oil temperatures No damage for 3x nominal for 1 minute hour for Vn External temperature transducers can be powered from relay Unregulated 30 Vdc supply output 24 Vdc load at 40 mA Sampling Resolution 12 bits plus sign amplitude measure ment accuracy 0 5 for 54 to 66 Hz Burden
94. armonic restraint is not examined The 87 characteristic is bound by the fast trip zone During energization harmonic restraint logic is needed to prevent false tripping All settings are done on the basis of the per unit trans former guantities Note that the fundamental current must be greater than 5 of nominal i e gt 0 25A for a 5A relay before the T PRO will calculate a har monic restraint value Care should be taken to ensure that the IOmin setting al ways be above the 5 of nominal value Operating Current IO IH IL IT for each of phases A B and C Where IH is the current from the high voltage side current sources IL and IT are currents from the low voltage side and tertiary side respectively Restraint Current IR I1 12 I3 14 I5 2 for each of phases A B and C Where I1 I2 I3 14 I5 are current inputs into the relay terminals magnitude sum 4 2 T PRO User Manual 8700 D01386R04 20 D01386R04 20 4 Protection Functions and Specifications Differential Harmonic Restraint Description The settings I2 and I5 which are for harmonic restraint to prevent false tripping during transformer energization inrush or transformer overexcitation condi tions If these are set for 0 3 pu then if either the 2nd or 5th harmonic is more than 30 of the fundamental current then the differential trip function is re strained If the IOmin setting corresponds to a pickup value of lt 0 25 A the
95. aseT Ethernet card View system diagnostic Displays the internal status log Retrieve system diagnostics Automatically packages up the internal status log plus set ting and setup information and downloads it in compressed form to your computer This file can then be sent to our cus tomer support to help diagnose a problem Restore settings Use this menu to force the system back to default values if you suspect a problem due to the unit s settings calibration and or setup parameters Force hardware reset Manually initiates a hardware reset Note that the communi cation link is immediately lost and cannot be re established until the unit completes its start up 2 12 T PRO User Manual 8700 D01386R04 20 2 Setup and Communications View network statistics View IP TCP and UDP statistics when eguipped with inter nal 10BaseT Ethernet card Monitor SCADA Shows real time display of SCADA data Enable disable Modem Enables or disables the internal modem Firmware Update The relay has an update login that can be accessed by a connection through a VT100 terminal emulator such as HyperTerminal This login is available D01386R04 20 only from Port 1 1 Usethe terminal program to connect to Port 1 2 Select Enter the terminal responds with a login prompt 3 Login as update in lower case The firmware update is used to update the relay s software with maintenance or
96. asswords are case sensitive login dm Figure 6 4 Login to the Relay 1 From the Main Menu select Settings 2 From the Settings submenu select Zoad From Ofjliner 3 Select Y yes you are ready to continue TPRO Unit ID UnitID Main Menu Settings User Access Level CHANGE 2003Mar25 08 52 prev menu Settings Tis MURS Retrieve to Offliner rVes No Ready to load remote setting Awaiting your Zmodem send Continue Y N Figure 6 5 Load from Offliner 6 6 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide 4 Find Send File in your terminal software e g for HyperTerminal it s un der Transfer 5 Browse to the folder location where the setting file was saved and send it to the relay zx File Edit View Call Transfer Help Da sal col Cap at tl bia 2003Har25 08 52 Capture to Printer Transfer the Setting file send using Zmodem protocol Will automatically time out in 120 seconds B B00000012f4cedd es In File Transfer Mode K CI Sends a file to the remote system Figure 6 6 Send File The relevant nameplate and connection settings for tests that follow are MVA 100 Windings 2 HV kV 230 Y 0 LV kV 115 Delta 30 HV CT 250 1 Y 0 LV CT 500 1 Y 0 PT Location High Side Base Frequency 60 Hz 1 0 per unit frequency Calculated Values The PT location
97. bient Temperature input terminals 230 231 Top Oil Setting Calculated Re boot the T PRO cycle power to reset the steady state condition other wise the T PRO only assumes a new steady state after hours of settling in When the T PRO is installed this is not a problem and is the correct way to respond T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide 3 In Terminal Mode access T PRO Metering gt Dev49 gt TOEWS Monitor the following elements for pickup 30min Alarm Low 15min Alarm lt Low Trip lt Low Observe HV current lt 1 00 per unit Ambient Temperature 20 C Top Oil Temerature 75 C Hot Spot Temperature 100 C 4 Increase current to simulate an overload condition e g 180 Load Over a period of time hours observe in order 30 min Alarm High 15 minutes later 15 min Alarm High 15 minutes later TOEWS Trip High Contact 11 Closed Hint If you set the T PRO to trigger a recording on each of these events you can ensure that you will retain records of when these elements operate T PRO Target TOEWS Trip Checking the warning and trip times can only be properly done by comparing heat runs made on software an MS Excel spreadsheet available from ERLPhase Very stable temperature mA inputs and current inputs over a period of hours are necessary to get predictable and satisfactory timing test results End of TOEWS test T PRO Use
98. c State Logic State 87 Trip LOW SIN LV Trip LOW Self Fail LOW 87N HV Trip LOW 87 Restr LOW 51N LV Alm LOW Ambient Alm LOW 87N LV Trip LOW 87 FastTrip LOW 50N LV Trip LOW Top 0il Alm LOW 87N TV Trip LOW 51 HV Trip LOW 5IN TY Trip LOW 49 1 Trip LOW TOEWS3 Alm LOW 51 HY Alarm LOW 51N TV Alm LOW 49 2 Trip LOW TOEWS15 Alm LOW 50 HY Trip LOW 5ON TY Trip LOW 49 3 Trip LOW TOEWS Trip LOW 51 LV Trip LOW 67 Trip LOW 49 4 Alarm LOW 81 1 Trip LOW 51 LV Alarm LOW 67 Alarm LOW 49 5 Alarm LOW 81 2 Trip LOW 50 LV Trip LOW 24INV Trip LOM 49 6 Alarm LOW 81 3 Trip LOW 51 IV Trip LOW 24 INV Alarm LOW 49 7 Alarm LOW 81 4 Trip LOW 51 IV Alarm LOW 24DEF Trip LOM 49 8 Alarm LOW 21 1 Trip LOW 50 TY Trip LOW 59N Trip LOW 49 9 Alarm LOW 21 2 Trip LOW 51N HV Trip LOW 59N fllarm LOW 49 10 Alarm LOW IxIxt Alarm LOW 51N HV Alm LOW 60 Alarm LOH 49 11 Alarm LOW 5ON HY Trip LOH THD Alarm LOW 49 12 Alarm LOW KF3 Quit F2 Freeze Figure 6 8 Metering Logic Settings Only Enable Setting can be modified Voltage 0 5 per unit on 1 or 2 phases does not operate on loss of 3 phas es 59 VA fixed 0 5 pu 59 VB fixed 0 5 pu 59 VB fixed 0 5 pu m Yoo Figure 6 9 Logic Loss of Potential 60 Lg 60 Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic 2 Monitor the following element for pickup 60 Alarm 3 Apply balanced 3 phase nominal voltage 66 4 V to the T PRO terminals Ph A 330 66 4 V Z0 Ph
99. cal Support Email support erlphase com Tel 1 204 477 0591 T PRO User Manual 8700 Table of Contents D01386R04 20 lks RN RP I A one ete Contact Information sssssssss HH Table of Contents iii Using ea i 0 fo ii DE V Version Gormpatbility teks a eli vii DONE NEW m 1 1 Front VidWis tiene erie teas 1 3 Back VIeW csse lr AVE AGA LEAD ma 1 3 Model Options Ordering eese 1 4 2 Setup and Communications 2 1 Power SUPP yoii eere ento Gb aa 2 1 IRIG B Time Input 2 1 Communicating with the Relay IED 2 2 Using HyperTerminal to Access the Relay s User Interface zuo cn dot TR 2 5 Setting the Baud Rate 2 7 Accessing the SCADA Services 2 8 Communication Port Details 2 9 Maintenance Menu ceeceeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeees 2 12 Firmware Update ssssssssssssseseeeeeee 2 13 3 Using the IED Getting Started 3 1 Start up Sequence 000 rent 3 1 Front Panel DISDIAV spe Ee oa ini 3 2 Terminal Mode 3 5 Metering Data ANA a AGANG 3 14 4 Protection Functions and Specifications 4 1 Protection and Recording Functions 4 1 Recording Functions u s 4 30 Logging FUNCHONS ia poe Tob dedic r
100. condition for the transformer As the ambient temperature deviates from 30 C the relay pickup will track the lower curve in the diagram so that for example at 30 C the overcurrent relay pickup is automatically changed to 1 4 per unit Conversely the transformer is automatically de rated to about 0 93 per unit if the ambient temperature goes to 40 C Allowed Loading 65 degC rise Transformer Type 5 cooling 40 35 30 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 1 Allowed Loading 65 C Rise Transformer Type 5 Cooling Ifa relative rate of loss of life of 1 is chosen and a loading just below pick up were to persist for 24 hours normal i e design loss of life would occur However loading is seldom this constant Thus it can be seen that higher rates of loss of life might be reasonably accepted 2 4 8 16 32 Under such conditions the continued trend logging of inter nal temperatures and accumulated loss of life become valuable features of the T PRO Relay T PRO User Manual 8700 D01386R04 20 Appendix M Loss of Life of Solid Insulation Example 2 Refer to the same curve in Example 1 in Appendix M Suppose for the same transformer a relative rate of loss of life of 8 has been selected First note that this corresponds to a steady state hot spot tem
101. cord Length Fault Record Length 0 5 s 0 2to 2 0 Thermal Logging Disabled Trend Sample Rate 3 minutes sample 3 to 60 T PRO User Manual 8700 D01386R04 20 Appendix C Hardware Description External Input and Comm Board Relay Output and DC Analog Input Board Power Supply Board AC Analog Input Board Main Processor Board MPB D01386R04 20 The T PRO is a sophisticated transformer protection relay with integral high guality fault recording The T PRO Relay has 9 channels of external inputs provided by the External Input and Comm Board Inputs are optically isolated factory pre set to the cus tomer s reguested voltage level Two dual range user selectable external input voltage level model of the External Input and Comm Board are available This allows you to select between 48 Vdc and 125 Vdc or 125 Vdc and 250 Vdc nominal on a per input basis The External Input and Comm Board also provides the relay with two rear panel RS 232 ports IRIG B time synchronization input and optional network or telephone connection The RS 232 ports are female DB 9S connectors IRIG B is a male BNC and network or telephone is a female RJ 45 modular jack The Relay Output Board provides 14 normally open contact outputs for relay ing alarms and control one normally closed output contact for indicating proper relay operation This board also provides two 4 20mA current inputs and one unregulated 30 Vdc supply
102. currents all are magnitude quantities in per unit 8 samples cycle These derived and an alog channels are displayed as a Differential Trajectory graph 57 relay internal logic signals 8 samples cycle 10 ProLogic signals 8 samples cycle Parameters that are user selectable with respect to recording faults Record length 30 120 cycles of which 10 cycles is pretrigger with auto matic extension to capture successive triggers Recorder triggering by any internal logic or external digital input signal The trend recorder provides continuous slow speed recording of the trans former and its characteristics with an adjustable sample period from 3 to 60 minutes per sample This same global trend sampling rate is applied to all the trend quantities The relay stores a fixed number of samples At the nominal sample period of 3 minutes per sample T PRO stores one month of trend re cords with automatic overwrite of the oldest If the sample interval increases to 30 minutes per sample the relay stores 300 days of trend records Sample Interval Trend Record Length 3 minute 30 days 5 minute 50 days 10 minute 100 days 30 minute 300 days 60 minute 600 days Figure 4 18 Examples of the Trend Record Length Use the terminal mode file transfer to view the trend records and then open Re cordBase View software to analyze the records T PRO User Manual 8700 D01386R04 20 D01386R04 20 To 4 Protection Fu
103. d and Figure A 3 Time Delay Error at 10 Seconds show operating times for the T PRO frequency rate of change elements at different time delay set tings and rate of change settings The diagrams show operating times at each test point including output contact operate time Operating times are the same for both 50 Hz and 60 Hz Time Delay Error 0 2s 9 0 1 Hz s mio 1 Hz s 90 10 Hzls Delay error ms Hz s Pickup Multiple Figure A 1 Time delay Error at 2 Seconds Time Delay Error 1s MT 180 165 150 135 120 3 a 1 Hz s 10 Hz s Time Delay Error ms 0 1 Hz s Multiple of Hz s Pickup Figure A 2 Time Delay Error at 1 Second Appendix A 4 T PRO User Manual 8700 D01386R04 20 Appendix A IED Specifications Time Delay Error 10s 0 1 Hz s a Hz s Time Delay Error ms 5 6 Multiple of Hz s Pickup Figure A 3 Time Delay Error at 10 Seconds D01386R04 20 T PRO User Manual 8700 Appendix A 5 Appendix B D01386R04 20 IED Settings and Ranges When a setting has been completed in Offliner Settings software it can be printed along with the ranges available for these settings This is a view only option to change the settings you must go back into the particular se
104. e On active Dev 87NHV Trip 00814 0 Off inactive On active Dev 87NLV Trip 00815 0 Off inactive On active Dev 87NTV Trip 00816 0 Off inactive On active TOEWS 15 Minute Alarm 00817 0 Off inactive On active TOEWS 30 Minute Alarm 00818 0 Off inactive On active T PRO User Manual 8700 D01386R04 20 Appendix E Modbus RTU Communication Protocol TOEWS Trip 00819 0 Off inactive 1 On active ProLogic 1 Trip 00820 0 Off inactive 1 On active ProLogic 2 Trip 00821 0 Off inactive 1 On active ProLogic 3 Trip 00822 0 Off inactive 1 On active ProLogic 4 Trip 00823 0 Off inactive 1 On active ProLogic 5 Trip 00824 0 Off inactive 1 On active ProLogic 6 Trip 00825 0 Off inactive 1 On active ProLogic 7 Trip 00826 0 Off inactive 1 On active ProLogic 8 Trip 00827 0 Off inactive 1 On active ProLogic 9 Trip 00828 0 Off inactive 1 On active ProLogic 10 Trip 00829 0 Off inactive 1 On active 81 1 Trip 00830 0 Off inactive 1 On active 81 2 Trip 00831 0 Off inactive 1 On active 81 1 Trip 00832 0 Off inactive 1 On active 81 2 Trip 00833 0 Off inactive 1 On active 27 1 Trip 00834 0 Off inactive 1 On active 27 2 Trip 00835 0 Off inactive 1 On active FI t Alarm 00836 0 Off inactive 1 On active Read Inpu
105. e Test Mode Time Readings Legs Alarm Push Buttons Figure 3 1 Front Panel Display The display the six LED lights and the six push buttons provide selective in formation about the relay LED Lights Relay Functional Indicates when the relay is functional When the Relay Functional green LED goes on the rear Relay Inoperative contact changes to open and the protective functions become functional IRIG B Functional Indicates the presence of a valid IRIG B time signal Service Reguired Indicates the relay needs service This LED can be the same state as the Relay Functional LED or can be of the opposite state depending on the nature of the problem The following items bring up this LED DSP failure protection difficulties within the relay Communication failure within the relay Internal relay problems Test Mode Occurs when the relay output contacts are intentionally blocked Possible reasons are Relay initialization on start up User interface processor has reset and is being tested You cannot communicate with the relay through the ports until the front display becomes active and the Test Mode LED goes out Normally the red Target LED remains off after this start up unless the relay had unviewed target messages Output contacts are controlled from the Utilities menu 3 2 T PRO User Manual 8700 D01386R04 20 Push Buttons D01386R04 20 3 Using the IED Getting Start
106. e a newer version of HyperTerminal v1 2 or T PRO User Manual 8700 D01386R04 20 2 Setup and Communications greater Alternatively you can use any Telnet program that fully supports VT 100 terminal emulation and z modem file transfer DNP3 SCADA services can also be accessed over the LAN for details see Accessing the SCADA Services on page 2 8 Connect Port 5 to the Ethernet LAN using an appropriate 10BaseT cable with an RJ 45 connector The relay supports 10 Mbit Ethernet although a dual speed 10 100 Ethernet hub or switch can be used By default the relay is assigned an IP address of 192 168 1 100 Ifthis address is not suitable it may be modified using the relay s Maintenance Menu For details see Using HyperTerminal to Access the Relay s User Interface on page 2 5 Using HyperTerminal to Access the Relay s User Interface D01386R04 20 Change settings view measured values and retrieve data from the relay using its user interface This section describes how to configure a standard Windows VT 100 terminal program on your PC for use with the relay The computer must be connected to the relay by one of its serial modem or Ethernet communication ports for details see Communicating with the Relay IED on page 2 2 The relay user interface is accessed using a standard VT 100 terminal style program on your computer eliminating the need for specialized user interface software Any terminal program that fully supports
107. e method you only need to remember 2 Magnitude Correction Factors 1 0 and 3 The values in the tables can be proven by manually calcu lating the phase shift resultants using the Analog Phase Shift Table in Appendix L D01386R04 20 T PRO User Manual 8700 6 47 6 Acceptance Protection Function Test Guide The Table below relates the Net Transformer Shift angle to the applicable Cor rection Factor Table 6 4 Single Phase Correction Factor Table Transformer Net Phase Additional Magnitude Shift degrees Correction Factor Multiplier 0 1 0 60 1 0 120 1 0 180 1 0 120 1 0 60 1 0 30 13 1909 N3 150 N3 150 N3 90 N3 30 N3 Multiply the 3 phase current values determined earlier by the correction fac tor in the right column of the Single Phase Correction Factor Table on page 6 48 Performing the Single Phase Test 1 Continuing with the example on the 0 high side our minimum operating point is Inject Phase A Phase C which Phase A Phase C In the Single Phase Correction Table 0 gives a Correction Factor of 1 0 HV 3 Phase IO min Additional MCF 0 301 x 1 0 0 301 A 2 On the 30 Low Side our minimum operating point is Inject Phase A which Phase A Phase C In the table 30 gives a Cor rection Factor of V3 LV 3 Phase IO Additional MCF 0 301 x N3 0 522 A Apply the same process to a
108. e phase undervoltage or a single phase undervoltage condition When the gate switch is set to OR a drop of voltage on any one phase causes the element to operate Set the definite time delay to 0 0 for a instantaneous output Gate Switch Setting TIN 27 Va e 27 Vb OR o AND Figure 4 9 27 Undervoltage 27 Undervoltage Setting Functions Pickup volts Minimum level that operates device 27 Pickup Delay seconds Operating time of the 27 Gate Switch Allows either single phase or three phase operation T PRO User Manual 8700 4 17 4 Protection Functions and Specifications 60 AC Loss of Potential 4 18 27 Undervoltage Setting Ranges 59 VA fixed 0 5 pu 59 VB fixed 0 5 pu 206 59 VB fixed 0 5 pu o 207 27 1 27 2 Enable disable Gate Switch AND or OR Pickup volts 1 0 to 120 0 Pickup Delay seconds 0 00 to 99 99 L 10s O 0 0 Figure 4 10 AC Loss of Potential Logic Loss of Potential This protection detects the loss of potential from either one or two phases ofa PT and issues an alarm The alarm is intended to detect a blown fuse or an open circuit in the PT circuit If this function is enabled and an ac loss of potential takes place an output con tact can be closed 60 Loss of Potential Setting Ranges 60 Loss of Potential Enable disable Pickup Time Delay 10 seconds fixed T
109. ed Alarm Occurs when an enabled relay function picks up The red Alarm LED should be off if there are no inputs to the relay If the Alarm LED is on check the event log messages on the front dis play by pressing the View Logs button Target Indicates that a fault has taken place An event message with date and time is presented in the display Date 8 Time Pressing the Date amp Time button displays the date and time stored on the relay If the time is incorrect connect to a PC in Terminal Mode and go to Utilities gt Setup gt Time to make the change or connect to the IRIG B plug at the back of the relay The front display time and date is auto matically updated The green IRIG B Functional LED comes on The relay accepts either modulated or unmodulated IRIG B signals automatically Options using IRIG B such as time skew for different time zones are available when you establish communication with the PC View Readings Pressing the View Readings button obtains metering information about the transformer for details see Display on page 3 4 View Logs Pressing the View Logs button displays the target information if a relay operation has occurred for details see Display on page 3 4 Previous Next Scroll through the menu by pressing Previous and Next Clear Target When a fault takes place the red target light appears Use the Clear Target button to view all targ
110. eference Reference pie 3 S Figure 4 13 Directional Overcurrent Protection Characteristic This device provides directional overcurrent protection applied to the HV or LV winding that has the PT connected to it If the angle between the positive sequence current and the positive sequence voltage is in the region labelled Beta then a timed trip occurs Use either HV side voltage and HV side current or LV side voltage and LV side current de D01386R04 20 T PRO User Manual 8700 4 23 4 Protection Functions and Specifications pending on which side the PT is connected In either case the reference direc tion is into the transformer You can select an inverse time characteristic of the function Directional Overcurrent allows for the application of a directional controlled overcurrent relay Direction is determined from the reference voltage guanti ties of the HV side PT 67 Directional Overcurrent Setting Functions 67 Pickup Minimum level that operates device 67 Curve Type Sets the type of curve TMS Factor for altering inverse time curve A B p Parameters for defining the curve TR Factor for altering the reset time Alpha Defines the starting angle for the trip region Beta Defines the size of the trip region in degrees offset from alpha 67 Directional Overcurrent Setting Ranges 67 Enable disable Curve Type See Table 4 2 IEC and IEEE C
111. el 0 05 10 99 93 Pickup Delay seconds 50 Hz Rate of Change 0 20 10 93 99 D01386R04 20 T PRO User Manual 8700 4 19 4 Protection Functions and Specifications 50 51 Overcurrent Pickup TU TMS B 4 1 i Ipickup Reset TI TMS py Care ee I Pickup These functions provide backup protection for device 87 and downstream pro tections Device 50 51HV provides high voltage side instantaneous and in verse time device 50 51LV provides overcurrent protection for the LV winding and 50 51TV provides overcurrent protection for the TV winding Depending on the associated CT connections either the Wye current or the Delta currents could be used in the 50 51 functions for details see Magnitude Corrections on page 4 5 Each of the above overcurrent functions provide three IEC inverse time curve types and three IEEE inverse time types of overcurrent protection as well as a user defined inverse time type is also provided Each device 50 51 is applied on each of the windings as defined by the settings Each operates on the sum of that particular winding side per unit current positive and negative sequence values only irrespective of the CT ratio or connection on that side The input of each device 50 51 is the maximum fundamental rms current Imax among phases A B and C If Imax is greater than pickup an alarm is set and the relay starts to integrate towards trip When the integrated torque is greater
112. en indicate the serial number and the settings version of the relay Creating a Setting 1 Offliner Settings displays a default setting file on start up showing the erem an Older settings version in the bottom status bar As an example T PRO Offliner is shipped with a set of default sample files of older settings versions These 5 4 T PRO User Manual 8700 D01386R04 20 5 Offliner Settings Software 39 66 sample files are v2 sample tps v3 sample tps etc Each sample file contains default values of an older settings version For a new installation these sample files are placed in the default directory C Program Files ERLPhase T PRO Offliner Settings or you can choose the path during the Offliner software installation If an older version of T PRO Offliner was previous ly installed on your PC then the default directory may be C Program Files APT T PRO Offliner Settings 2 Open a sample file of the desired version Use File Save As to save the sam ple file to a new file name Then edit the setting file and the serial number save it and load it into the relay RecordBase View Software D01386R04 20 ITANE zlojxi Bie Yow gah Manasa See Gene tep gaas foo SS Ala a na z s HY slej zid bonk B GEST 3911053477 ES L Figure 5 4 RecordBase View Use RecordBase View to analyze the records from a relay 1 Set the receive directory on your terminal program to point to a convenient d
113. enhancement releases Please see the T PRO Firmware Update Procedure documentation that comes with the firmware update for instructions on how to update the firmware on the relay T PRO User Manual 8700 2 13 3 Using the IED Getting Started T PRO Transformer Protection Relay ta OFF Offline Mode Settings Software Online Mode Terminal Mode Start up Sequence The following initialization sequence takes place Test Mode red LED on 2 seconds after power applied Relay Functional green LED on 5 seconds after power applied Front Display on 30 seconds after power applied Test Mode red LED off 40 seconds after power applied When the relay is powered up the normal seguence of LED operation is Test Mode followed by Relay Functional and IRIG B Functional if available dis play on then Test Mode off The entire seguence takes about 40 seconds Ways to interface with the relay Front panel display Terminal Mode Offliner Settings software D01386R04 20 T PRO User Manual 8700 3 1 3 Using the IED Getting Started Front Panel Display View or change settings using Terminal Mode or loading a setting file from Offliner Settings The front panel display is the fastest and easiest way of getting information from the relay Display LED Lights Relay Functional Target RIG B Functional EE NE gt Service Required Date 8 View Vi w Previous Next
114. eptance Protection Function Test Guide THD Alarm Test 50 11A THD 50 I1B THD 50 11C THD 50 I2A THD 50 I2A THD 50 I2A THD 50 I3A THD 50 I3A THD 50 I3A THD 50 I4A THD 50 I4A THD 50 I4A THD 50 ISA THD 50 ISA THD 50 ISA THD 6 30 Settings THD Alarm Pickup 10 Input 1 Enabled Y Input 2 Enabled Input 3 Enabled P Input 4 Enabled pone Input 5 Enabled m Out 8 I 10 s Y T Figure 6 22 Logic Total Harmonic Distortion Alarm THD For testing THD use the fundamental with only one harmonic In this case the T PRO uses the following formula for calculating Total Harmonic Distortion 25 Sn 2 harmonic m Iharmonic 100 Baan 100 Posdonenhn THD t 100 i percen 0 Ifundamental Ifundamenta Ifundamenta THD Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup THD Alarm 2 Apply parallel currents to terminals 300 301 as follows Source 1 Fundamental 2 0 A Z0 Terminals 300 301 Source 2 2nd Harmonic 0 0 A 0 also Terminals 300 301 3 Slowly ramp Source 2 up At 0 19 to 0 21 A expect 0 20 A THD Alarm High After 30 seconds Contact 8 Closed End of THD test T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide 87N Differential Test Testing the 87N uses the same process as testing the 87 with the following ex ception ISA is used fo
115. es view read only access to settings and readings change read write access to settings and readings service full access to all functions Port 1 access only maintenance access to the maintenance menu update to load a firmware update Port 1 access only Notes Serial and modem connections have a 60 minute inactivity timeout Usernames and passwords are case sensitive login ce Instructions for logging in and running the user interface are given in Termi nal Mode on page 3 5 If you see incorrect characters on a direct serial connection it may mean there is a mismatch between the relay s baud rate and that of the PC Ending a User Use the Quit function in the relay s user menu to end a session This closes the Interface Session interface and reguires the next user to login to the relay The relay automatically ends a session when it detects the disconnecting ofa direct serial cable or a modem hang up For other types of connections e g se rial switches or Ethernet use the Quit function to ensure the interface is closed and login protection is activated 2 6 T PRO User Manual 8700 D01386R04 20 2 Setup and Communications Setting the Baud Rate Direct Serial Link Modem Link D01386R04 20 The baud rate of the relay s serial ports can be shown on the relay s front panel display From the main Date 8 Time display press the Next button For a direct serial connection both the relay and
116. essarily configured to a pro vide a realistic setting example Its configuration is intended to demonstrate test methods for each relay element Tests are organized to prevent interference of one protection element on the next within the relay for ease of testing with out using multiple setting files and minimizing the number of test connection changes Meanwhile all contacts in the relay will be tested if all elements in this procedure are tested as written When the acceptance test file is loaded into the T PRO the Alarm LED may illuminate This is no cause for concern it is an indication of a protection ele ment threshold exceeded Generally this condition is caused by not having ap plied a minimum of 4 mA to the temperature inputs Check Metering gt Logic to find which elements are High T PRO User Manual 8700 6 5 6 Acceptance Protection Function Test Guide Load the Setting File into T PRO Connect to T PRO in service or change mode through the front port Port 1 using your terminal program e g HyperTerminal or Procomm Log in using one of the following usernames view read only access to settings and readings change read write access to settings and readings service full access to all functions Port 1 access only maintenance access to the maintenance menu update to load a firmware update Port 1 access only Notes Serial and modem connections have a 60 minute inactivity timeout Usernames and p
117. et information If many faults have been stored you may need to push this button several times Clearing the target light does not clear the target information from the relay log The relay holds all target messages during a power supply shutdown and restart Pressing the Clear Target push button displays any targets not previously viewed on the front display and clears the Target LED after the last target has been viewed T PRO User Manual 8700 3 3 3 Using the IED Getting Started Display 3 4 eoo 50ce0 Date amp View View Previous Next Clear Time Readings Logs Target View Readings 0 0 KV ph ph 0 0 A line View Logs 2000Jun28 19 34 31 823 Top Oil Under Range Alrm Figure 3 2 Display Examples Front Panel Display Messages PRI V I P Q involved Ambient top oil hot spot temperature trip date and time of all functions T PRO User Manual 8700 D01386R04 20 3 Using the IED Getting Started Terminal Mode 1 Establish terminal mode connection for details see Using HyperTerminal to Access the Relay s User Interface on page 2 5 2 Login as one of view change or service lower case These three login names provide differing levels of permission The relay supports the optional use of passwords A pop up dia logue box appears after login has taken place If you have forgotten the password go to Access gt Passwords in Terminal Mode for details see Passwords o
118. external modem Default Setting 9 600 baud 8 data bits no parity 1 stop bit Port 2 is disabled if the relay is equipped with an internal modem see Port 5 Rear Panel RS 232 DCE female DB9 Used for SCADA communication Default Setting 9 600 baud 8 data bits no parity 1 stop bit Rear Panel Not used Rear Panel RJ 11 RJ 45 receptacle When equipped with optional internal modem Used for user interface access through modem When equipped with optional internal Ethernet card User interface access DNP SCADA access Default Ethernet IP address 192 168 1 100 T PRO User Manual 8700 2 9 2 Setup and Communications Signal Name Direction Pin on the Relay PC lt gt Relay Port DCD lt 1 RxD c 2 TxD gt 3 DTR gt 4 Common 5 DSR lt 6 RTS gt 7 CTS lt 8 No connection 9 Notes e Relay is DCE PC is DTE Pins 1 and 6 are tied together internal to the relay 2 10 Male DB 9 Cable End for Relay Female DB 9 Cable End for Port Computer Port Pin on Cable Pin on Cable 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 T PRO User Manual 8700 D01386R04 20 D01386R04 20 2 Setup and Communications Notes Signal Name Direction Pin on the Modem Modem lt gt Relay Adapter DCD gt 1 RxD gt 2 TxD pu 3 DTR lt 4 Common 5 DSR gt 6
119. fashion to the current settings with pickup and hys teresis levels and pickup and dropout delay settings In this manner the temperature based portion of the 49 device monitors the internal temperatures of the transformer and tolerates them for a specified time An AND OR gate provides two switches that can be ANDed or ORed together allowing for flexible logic and for monitoring different parts of the transformer under different loading and temperature conditions You can set each individual 49 device to provide a simple Alarm LED or a Tar get LED with a front panel message indicating which 49 device has operated 49 Thermal Overload Setting Ranges Current Input Switch Off HV LV TV Pickup pu 0 10 to 20 00 Hyteresis pu 0 00 to 1 00 Pickup Delay Tp1 seconds 0 00 to 1800 00 Dropout Delay Td1 seconds 0 00 to 1800 00 Temperature Input Switch Off Hot Spot Top Oil Pickup degrees 70 0 to 200 0 Hysteresis degrees 0 0 to 10 0 Pickup Delay Tp2 hours 0 00 to 24 00 4 12 T PRO User Manual 8700 D01386R04 20 49TOEWS Transformer Overload Early Warning System D01386R04 20 4 Protection Functions and Specifications Dropout Delay Td2 hours 0 00 to 24 00 LED Switch Target LED or Alarm LED Logic Gate OR or AND This feature extends the thermal overload concept of the previous section in two ways Predicts excessive hot spot temperature to thirty minutes in advance
120. ging is recommended on receipt to ensure the re lay was not damaged during shipping The electronics in the relay contain static sensitive devices and are not user serviceable If the front of the relay is opened for any reason exposing the electronics take extreme care to ensure that you and the relay are solidly grounded Generally an analog metering check as well as testing the I O External Inputs and Output Contacts is sufficient to ensure the functionality of the relay Fur ther tests can be performed on delivery and acceptance of the purchaser s op tion according to the published relay specifications in TED Settings and Ranges in Appendix B The following acceptance test section is intended to be a guide for testing any and all protection elements in the relay The most convenient time to perform these tests is on delivery prior to in service settings being applied Once in service settings are applied ERLPhase recommends that enabled functions be tested to ensure that the designed application is fulfilled 3 voltage sources 2 sets of three phase currents recommended to test differential element but can be completed single phase by using set of 3 phase currents vari able frequency capability 1 ohmmeter 1 dc mA calibrating source or 1 1 kO to 10 kO 1 0 W variable resistor and a milliammeter up to 25mA Set nominal CT secondary current to either 5 A or 1 A and nominal system frequency to ei
121. gure O 1 T PRO A Back view Example 2 Using two top oil probes powered by two T PRO relays B and C and one am bient temperature probe powered by T PRO C D01386R04 20 T PRO User Manual 8700 Appendix O 1 Appendix O Temperature Probe Connections T PRO B Back view T PRO C Back view i ii 30 VDC i i Ambient Top Oil 40 mA Ambient Top Oil 30 VDC OOOOOO 230 231 232 233 234 235 230 231 232 233 234 235 1 Gray Orange T T T Top Oil Ambient Top Oil Temperature Temperature Temperature Probe 2 Probe Probe 1 Figure O 2 T PRO B Back view and T PRO C Back view Appendix O 2 T PRO User Manual 8700 D01386R04 20 Index D01386R04 20 Numerics 24 overexcitation 4 15 27 undervoltage 4 17 49 thermal overload 4 11 49TOEWS transformer overload ear ly warning system 4 13 50 51 overcurrent 4 20 50N 51N neutral overcurrent 4 22 51ADP adaptive overcurrent 4 21 59N zero sequence overvoltage 4 16 60 ac loss of potential 4 18 67 directional overcurrent 4 23 81 over under frequency 4 19 87 differential protection 4 1 87N neutral differential 4 9 A ac and dc wiring 7 1 ac schematic drawing 1 access 3 12 3 13 alarm 3 3 ambient temperature connections O 1 analog inputs 3 9 5 7 analog phase shift table L 1 B back view 1 3 backward compatibilty 5 4 baud rate direct serial link 2 7 moden link 2 7 C calibrate 3 12 calibration 6 2 change access 3 13 clear ta
122. h Time default 1 read 0x06 0x07 0x08 129 response 0x17 2 3 Binary Input Change with Relative Time 1 read 0x06 0x07 0x08 129 response 0x17 10 0 Binary Output All Variations 1 read 0x00 0x01 0x06 0x07 129 response 0x00 0x08 0x17 0x28 10 2 Binary Output Status default 1 read 0x00 0x01 0x06 0x07 129 response 0x00 0x08 0x17 0x28 30 0 Analog Input All Variations 1 read 0x00 0x01 0x06 0x07 129 response 0x01 0x08 0x17 0x28 30 1 32 bit Analog Input 1 read 0x00 0x01 0x06 0x07 129 response 0x01 0x08 0x17 0x28 30 2 16 bit Analog Input 1 read 0x00 0x01 0x06 0x07 129 response 0x01 0x08 0x17 0x28 30 3 32 bit Analog Input without flag 1 read 0x00 0x01 0x06 0x07 129 response 0x01 0x08 0x17 0x28 30 4 16 bit Analog Input without flag 1 read 0x00 0x01 0x06 0x07 129 response 0x01 default 0x08 0x17 0x28 32 0 Analog Input Change Event All Varia 1 read 0x06 0x07 0x08 129 response 0x28 tions 32 1 Analog Input Change Event 32 bit 1 read 0x06 0x07 0x08 129 response 0x28 without Time 32 2 Analog Input Change Event 16 bit 1 read 0x06 0x07 0x08 129 response 0x28 without Time default 32 3 Analog Input Change Event 32 bit with 1 read 0x06 0x07 0x08 129 response 0x28 Time 32 4 Analog Input Change Event 16 bit with 1 read 0x06 0x07 0x08 129 response 0x28 Time 51 1 Time and Data CTO 129 response 0x07 quantity 1 52 1 Time Delay Coarse 129 response
123. hase currents 310 for a grounded wye winding If these are not egual there is an internal ground fault on that winding The characteristic used is the same as that for the 87 for details see 87 Differ ential Protection on page 4 1 Operating Current IO IA4 IB IC amp IN Restraint Current IR JIN UA IB IC 2 Where IA IB and IC are the phase currents IN is the neutral current for a particular three phase winding of the trans former All current reference directions are into the transformer The 87N can also be used to protect an auto transformer IO 310 HV 310 LV IN 1 Where IO 0 for external ground faults IO gt 0 for internal ground faults IR 1310 HV 310 LV IN 2 2 Where 310 HV 310 LV and IN are all in primary amps Note that this is a direct ad dition of the currents between different voltage levels which is different from the calculation of 87 or 87N for ordinary transformer i e no conversion re flection between different voltage levels is reguired Since the 87N character istic is defined in per unit rather than in primary amps convert it to per unit by using the reference i e the side primary base current where the PT is located T PRO User Manual 8700 4 9 4 Protection Functions and Specifications When the reference input is determined the base current is calculated as Ibase lt MVA 1000 Root3 Ref Side kV IO pu IO Ibase 3 IR p
124. he relay is equipped to handle modulated or unmodulated GPS satellite time IRIG B signals The IRIG B time signal is connected to the BNC connection on the back of the relay When the IRIG B signal is provided to the relay and is enabled in the settings through the user interface the IRIG B functional LED comes on and the relay clock is referenced to this signal No settings are re guired to differentiate between modulated or unmodulated signals this is au tomatically detected by the relay You can enable or disable the IEEE 1344 extension in the terminal mode set tings Utilities Setup Time The enabled mode receives the year from the IRIG B signal Disable this setting if the available IRIG B signal has no year extension T PRO User Manual 8700 2 1 2 Setup and Communications Communicating with the Relay IED You can connect to the relay to access its user interface and SCADA services by direct serial link user interface and SCADA external or internal modem link user interface only ethernet network link user interface and SCADA Direct Serial Link Port 2 direct modem T PRO Port 1 or rear Port 2 to DB 9 female laptop Laptop PC Figure 2 1 Direct Serial Link The relay has three serial ports that provide direct access to its user interface and SCADA services All of the relay s serial ports Ports 1 2 and 3 are configured as EIA RS 232 Data Communications Equipment DCE devices with fema
125. he terminal user interface are also available through the Modbus protocol Additionally the Modbus protocol supports the reading of unit time and time of the readings and provides access to trip and alarm events including fault location information A Hold Readings function is available to freeze all metering readings into a snapshot see Force Single Coil function address 0 Read Coil Status Channel Address Value Hold Readings 00001 0 Readings not held 1 Readings held Reserved 00257 Reserved Reserved Output Contact 1 00513 0 Contact Open inactive 1 Contact Closed active Output Contact 2 00514 0 Contact Open inactive 1 Contact Closed active Output Contact 3 00515 0 Contact Open inactive 1 Contact Closed active Output Contact 4 00516 0 Contact Open inactive 1 Contact Closed active Output Contact 5 00517 0 Contact Open inactive 1 Contact Closed active Output Contact 6 00518 0 Contact Open inactive 1 Contact Closed active Output Contact 7 00519 0 Contact Open inactive 1 Contact Closed active Output Contact 8 00520 0 Contact Open inactive 1 Contact Closed active Output Contact 9 00521 0 Contact Open inactive 1 Contact Closed active Output Contact 10 00522 0 Contact Open inactive 1 Contact Closed active Output Contact 11 00523 0 Contact Open inactive 1 Contact Closed ac
126. hrough SCADA x x The Self Check Fail signal which is available in the Output Matrix TUI me tering and SCADA can be used to signal an alarm Note that if this signal is mapped to an output contact the contact which it is mapped to will only be closed for an alarm condition If the relay is in the Block condition the Relay Inoperative contact must be used to signal an alarm The status of the Self Check Fail is available through the SCADA services pro vided by the T PRO The digital signal Self Check Fail will indicate that DSP has detected a continuous dc level and the analog metering value Self Check Fail Parameter is used to indicate which condition Alarm or Block The failure types and which analog values they are associated with are described in the ta ble below Both signals are available in DNP and Modbus Point Value Condition 0 Normal 1 Alarm 2 Block 3 Alarm has evolved to block T PRO User Manual 8700 D01386R04 20 Appendix D Event Messages The Alarm condition is allowed to reset if the continuous de level drops below the pickup level The Block condition has no reset level If power is cycled to the relay it will go into its normal state until the continuous dc level is detected again D01386R04 20 T PRO User Manual 8700 Appendix D 5 Appendix E Modbus RTU Communication D01386R04 20 Protocol The SCADA port supports DNP3 and Modicon Modbus protocols All meter ing values available through t
127. ic High Mismatch 2rd 8 5th Harmonic Restraint Phase or Zero Seq Current Angle 90 deg 87 87N Rate Of Change Of Trip Operating and Restraint Currents dlO dlr Zero sequence current is used if 87N function is enabled Figure 4 4 Differential 87 Differential Logic D01386R04 20 T PRO User Manual 8700 4 Protection Functions and Specifications Rate Of Change Of Derivative Function ROCOD For some internal fault cases where a radial load may be present on the low side or on the tertiary side of the transformer a high resistance ground fault may not cause the load current to change As a result delta phase may not be able to op erate until the fault resistance becomes low To cater to this condition a rate of change of the operating and the restraint cur rent is performed It has been found that for internal faults the positive magni tude of the operating current derivative will always exceed the positive value of the restraint current derivative If this condition occurs this ROCOD func tion allows the slope function to trip If the fault is external to the differential zone the positive value of the operating current will not exceed the positive value of the restraint current The ROCOD function is therefore in place to add sensitivity to the differential relay for internal faults Internal Fault External Fault dlo dt dlo dt dir dt dir dt dlo dt gt dlr dt dlo dt lt d
128. ickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 2 ProLogic 2 ProLogic 2 Disabled Target Enabled T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 3 ProLogic 3 ProLogic 3 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 4 ProLogic 4 ProLogic 4 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 I
129. io 1 1 00 to 10000 00 External Control None 1to 9 This setting provides the relay with the information related to CT ratios wind ing connections wye or delta main winding nominal voltage and main wind ing connection The relay allows any combination of wye and delta combinations in the main and CT windings Since the actual current inputs used by the differential relay do not contain any zero seguence guantities no external zero seguence current trap is reguired The relay is secure for external faults The field location associated with the PT ratio is user selectable and you can connect to the HV or the LV side The field toggles when clicked between HV and LV You can assign five sets of ac currents to the HV LV TV sides or to NC not connected Assigning a current to NC makes it available to be recorded In our example Inputs 1 amp 2 are assigned to the HV high voltage side Inputs 3 amp 4 are assigned to the LV low voltage side Input 5 is assigned to the TV tertiary voltage side The current inputs must have at least one input on each of the HV LV and TV side An error message appears if this is violated If the 51N or 87N functions are used analog input 5 is automatically used for neutral current inputs You can use the 87N in T PRO for autotransformers provided there is a zero sequence current trap If that is the case analog input IA 5 becomes the input for this current IBS and ICS a
130. irectory on your PC s hard disk or network For example with HyperTer minal select Transfer gt Receive File to set the receive directory 2 Select one or more records on the relay using the List function in the Ter minal Mode s Records menu 3 Initiate transfer of the selected records by selecting R on the keyboard 4 Start the RecordBase View program and use the File gt Open menu command to open the downloaded record files located in the receive directory speci fied in step 1 For further instructions refer to the RecordBase View Manual at the back of the printed version of this manual T PRO User Manual 8700 5 5 5 Offliner Settings Software Main Branches from the Tree View Identification 5 6 RHS Information relating to specific menu Item LHS Menu Tree accessed by LHS menu or top tabs T PRO Offliner Settings Doc ment 1 Em File Edit Tools Window Help SETS pag xlejej s EfE EC ldentificati ge s Relay Identification Analog Inputs Identification External Inputs Output Contacts Settings Version Nameplate Data 2 Connections C Protection Functions amp ProLogic Output Matrix O Record Length Nominal CT Sec Current Nominal System Frequency 8 IV Janore Serial Number Serial Number TPRO 6700 380130 og Refer to the serial number Unit lo Unto on the back of the relay Settings Summary
131. is on the high side everything will be referenced to the high side Nominal secondary phase to phase HVkV _ 230kV 1 50V voltage PTratio 2000 f Nominal secondary phase to neutral 115 _ 664V voltage 3 kVA 100e3 Primary Ibase lt 2514 J3 kV 43 230 _ Primarylbase 251A_ Secondary Ibase CTratio 250 1 0044 T PRO User Manual 8700 6 7 6 Acceptance Protection Function Test Guide SOINOS JUSIND pue obeon perejnDes A uo dnydiq A140 Buse adojs Joj pojinba sjueun eseu OOOOO RA nga 8c ZE Ajddns LZE Sze Uy pue g sindujv J MOd 9a duie dwa WRITS dur OS NO due BPM dwa wey wey NZ8 AUl dill WIY N6S AOE doy guy seg NOS IO dWL NIS nuz dul dup WIYZ9 NTS day akz GEZ vez eez zez eZ OEZ OS T8 T 6b dOL NV CHL 09 N69 79 ZZ Z 6b duITS 78 MD L 1 a eH ooo o o_o _ o_o _ o ino ino ino ino ino 6 1NO 8 LNO Z1NO 91nO GINO vino LNO cz LNO Figure 6 7 Suggested Test Connections for Acceptance Tests D01386R04 20 T PRO User Manual 8700 6 8 60 Loss of Potential Test D01386R04 20 6 Acceptance Protection Function Test Guide Note 1 Where each test specifies Metering gt Logic you view the following terminal screen rTPRO Unit ID UnitID Main Menu Meter ing User Access Level SERVICE 2007Feb14 11 19 prev menu Operating Analog ProLogic 1 0 Trend Dev49 TOEWS LOGIC 1 Logic State Logic State Logi
132. ive document About Display program information Show or Hide Left Hand Side Tree Show or Hide the Tree View Undo Undo last action Grid On Grid Off The graph can be viewed with the grid on or off by clicking the Grid On or Grid Off button A right click on the trace of the curve gives you the x and y coor dinates Print Graph To print a particular graph click the Print Graph button Zoom on Graphs Graphs can be zoomed to bring portions of the traces into clearer display Left click on any graph and drag to form a small box around the graph area When you release the mouse the trace assumes a new zoom position determined by the area of the zoom coordinates To undo the zoom on the graph click the Refresh button T PRO User Manual 8700 5 3 5 Offliner Settings Software Handling Backward Compatibility Ofjliner Settings displays the version number in the second pane on the bottom status bar The settings version is a whole number v2 v3 v4 etc The Offliner Settings is backward compatible Open and edit older settings files and convert older settings files to a newer version Offliner Settings han dles forward conversion only it converts an older setting file to a newer setting file Converting a 1 Open the setting file you wish to convert Settings File 2 In the File menu select Convert to and then select the version x where x is the newer version A dialog box
133. l 8700 3 5 3 Using the IED Getting Started Passwords 3 6 The relay supports three user access levels that control what relay functions are available to you The current access level is always shown in the centre of the Main Menu heading To change the Access Level either login again using the desired access level as your login name or use the Main Menu Access menu Access Level Allowed actions view lowest View settings online readings and logs List and retrieve records At this level you cannot affect the operation of the controller change middle Do all of the above plus change the settings and delete records service highest Do all of the above two categories plus calibrate the analog inputs manually control output auxiliary relays and modify passwords Service access is only available through a local front port connec tion Individual passwords for the view and change access levels are available to prevent or limit remote access to the relay Passwords are not reguired for the service level This level is only available at the front of the local relay through serial Port 1 You can only change the passwords from the service level through the Access menu minimizing the chance that a password is changed casually and provides a means ofresolving situations where a password has been forgotten T PRO User Manual 8700 D01386R04 20 Terminal Mode Menus D01386R04 20 3 Usi
134. l temperature Those parameters not already defined for the equations are as follows A0H u ultimate hot spot rise over top oil in C A0u time varying hot spot rise over top oil in C A0TO U ultimate top oil rise over ambient in C A016 time varying top oil rise over ambient in C 0A ambient temperature in C Appendix N 2 T PRO User Manual 8700 D01386R04 20 Appendix N Top Oil and Hot Spot Temperature Calculation Per Unit Load Steady state Function Time Dependance K Hot Spot Steady state Function Time Dependance Temperature calculated O ao by Top Oil Figure N 1 Block Diagram of Top Oil and Hot Spot Temperature Calculation Method Inputs per unit load and Ambient Temperature Per Unit Load Steady state Function Time Dependance measured NO rp g Aby vu A017 Hot Spot Rise Hot Spot Temperature calculated Top Oil Temperature measured 0 TO Figure N 2 Block Diagram of Top Oil and Hot Spot Temperature Calculation Method Inputs per unit load and Top Oil Temperature D01386R04 20 T PRO User Manual 8700 Appendix N 3 Appendix O Temperature Probe Connections Example 1 Using one top oil probe and one ambient temperature probe with one T PRO A both powered from the T PRO A T PROA Back view Ambient Top Oil 30 VDC 40 mA M 230 231 232 233 234 235 Gray Orange T n Ambient Top Oil Temperature Temperature Probe Probe Fi
135. lay Td1 seconds 0 00 to 99 99 I I t Alarm Limit kA s 0 1 to 9999 9 2nd Harmonics Block Enable Disable 2nd Harmonics Block Pickup Timer Tp2 0 00 to 99 99 seconds 2nd Harmonics Dropout Timer Td2 sec 0 00 to 99 99 D01386R04 20 ProLogic D01386R04 20 4 Protection Functions and Specifications ProLogic Control Statements With ProLogic you can pick any of the protection functions or external inputs and place them into Boolean like statements ProLogic handles up to five func tions to generate one ProLogic statement ten statements are possible The re sults from these statements are mapped to output contacts using the output matrix The ProLogic control statements are used to create Boolean like logic The relay can use any of the protection functions or external inputs combined with logic gates to create a ProLogic control statement The possible gates are AND NAND OR NOR XOR XNOR NXOR and LATCH The control can be time delay pickup and or time delay dropout and can drive the front panel target LED Ten ProLogic control statements outputs are available and can be used in the output matrix to customize the relay to your specific needs Inputs to ProLogic are all the elements plus previous ProLogic statements for logic nesting usage The example shows A to E inputs are status points of devices that are user se lectable Each ProLogic output can be given a specific name pickup and reset time delay D E
136. le DB9 connec tors This allows them to be connected directly to a PC serial port with a stan dard straight through male to female serial cable for pin out see Communication Port Details on page 2 9 The relay s user interface is accessed through a standard VT 100 terminal em ulation program running on a PC To create a direct serial link between the re lay and your computer connect the serial cable provided between your computer s serial port and Port 1 on the relay s front panel Port 2 on the relay s back panel can also be used for direct serial access provided the port is not configured for modem use Once connected run the terminal emulation soft ware on your computer to establish the communication link for details see Using HyperTerminal to Access the Relay s User Interface on page 2 5 The relay s Modbus and DNP3 SCADA services can be accessed through a di rect serial link to Port 3 on the relay s back panel for details see Accessing the SCADA Services on page 2 8 2 2 T PRO User Manual 8700 D01386R04 20 Modem Link External D01386R04 20 2 Setup and Communications Modem Cable as supplied with modem Analog Telephone Line Analog Telephone Modem Adapter Port 2 Direct Modem Modem Adapter VA 465001 Supplied by ERLPhase DB 9 Male Male Figure 2 2 External Modem Link Using an external modem you can also access the relay s user interface thro
137. lr dt Figure 4 5 Rate Of Change Of Operating And Restraint Quantities Figure 4 5 Rate Of Change Of Operating And Restraint Quantities on page 8 shows how the dio dt and the dIr dt quantities occur during an internal and dur ing an external fault For an internal fault the dIo dt quantity will always be greater than the dlr dt quantity When this happens ROCOD generates a positive logic that will allow the slope function to generate a relay trip On the other hand if an external fault occurs dlo dt will always be less than dIr dt This in turn will prevent opera tion of ROCOD and thus prevent operation of a differential trip 4 8 T PRO User Manual 8700 D01386R04 20 87N Neutral Differential D01386R04 20 4 Protection Functions and Specifications Neutral Differential protection function sometimes called Restricted Ground Fault protects against internal winding to ground faults in cases where the normal differential protection 87 may not see a ground fault which occurs on the lower third section of one of the windings In this case the 87 setting is nor mally too high to see the fault but the 87N is very sensitive because the fault current for a near neutral to ground fault can be very high To intentionally limit this current sometimes a grounding resistor is connected between the transformer neutral and ground The principle of operation is that the transformer neutral current IN is com pared to the sum of the three p
138. m ines u6nouur yine4 Bojeuy peo Ss y Paka MALA Es dmes sue a uojp9ejold ISO bunesedo sBumes I unb SS9IIV ENIH bo juana Sp4029M Burg sbunjes Gi Figure 3 3 Terminal Mode Menus D01386R04 20 T PRO User Manual 8700 3 8 3 Using the IED Getting Started Settings D01386R04 20 The Main Menu display is ID Settings Metering Records Event Log Utilities Access Quit Provides the device serial number software version and required settings ver sion system frequency CT rating and external input type There are no user settings here Submenus Settings Load from Offliner Retrieve to Offliner Settings Settings includes all the submenus pertaining to protection functions used to create a relay setting When these settings are made or changed you can load them into the relay allowing input of all settings information for the relay Settings submenus Identification Nameplate Data Connections Protection Functions ProLogic Output Matrix and Recording Identification Relay Serial Number Software Version Relay ID Line Name Station Name Station Number and Location Comments Enter any appropriate comment Analog Input Names Name inputs 11A 11B 11C I2A I2B I2C I3A I3B I3C 14A 14B 14C I5A 15B I5C VA VB VC N External Inputs Name external inputs 1 to 9 Names Output Contact Name auxiliary relay output contacts 1 to 14 Names
139. n the harmonic restraint will not work When I2 Cross Blocking is enabled default the 2nd harmonics restraint blocks the 87 trip if the ratio of the 2nd harmonics to the fundamental exceeds the I2 setting in any phase when it s disabled the 2nd harmonics restraint blocks the 87 trip only if the ratio of the 2nd harmonics to the fundamental ex ceeds the I2 setting in at least two phases The latter might be used for a 3 sin gle phase transformer energization to ensure the transformer will trip correct ly when energizing to a fault Since the 2nd harmonic calculation is carried out on the internal delta currents for zero seguence current elimination as a re sult the single phase fault current will contribute into two phases The 2nd harmonic on these phases will not exceed the set point due to the dominant fault current fundamental As shown below the 2nd harmonics restraint signal is stretched for 5 ms in the first cycle on transformer energization to prevent the 2nd harmonics restraint signal from any possible momentary reset due to the current signal transition in the first cycle Note that this logic only becomes active when the transformer has been de energized or very lightly loaded the restraint current is less than 30 of IOmin setting Device 37 under current 37 IRA 30 of lOmin 37 IRB 30 of lOmin 1 10s 17 ms Transformer has 37 IRC 30 of lOmin been de energized
140. n page 3 6 3 When connection is established and the terminal mode program appears on your sereen the following prompt should appear If it doesn t appear press Enter Log in using one of the following usernames view read only access to settings and readings change read write access to settings and readings service full access to all functions Port 1 access only maintenance access to the maintenance menu update to load a firmware update Port 1 access only Notes Serial and modem connections have a 60 minute inactivity timeout Usernames and passwords are case sensitive login g 4 Iflogin is successful the Main Menu appears TPRO Unit ID Your ID entered earlier Main Menu User Access Level VIEW 2000 Jun 08 11 53 ID Settings Metering Records Event Log Utilities Access Quit view change Or service depends on how you log in If the box around the menu does not appear as above change the font in your terminal program to one that supports line draw charac ters e g terminal fonts Also ensure that emulation is set to VT100 not VT100J If there are incorrect characters in the display improper line feeds or unerased portions the baud rate is too high for the quality of the com munication link Use the Utilities gt Setup gt Ports menu to reduce the re lay s baud rate The new rate is in effect at the next connection D01386R04 20 T PRO User Manua
141. n to accommodate this transformer configuration For an auto transformer zero sequence cur rents from the HV LV and common neutral side are compared 4 10 T PRO User Manual 8700 D01386R04 20 49 1 to 49 12 Thermal Overload D01386R04 20 4 Protection Functions and Specifications 3 Winding Transformer Auto Transformer 3loHv 3loLv 3loN 87N can be applied on HV LV Or TV side of Grd Wye Transformer S Fs Zero sequence current phase Example of external fault phase angles Angle compared on each side gt 90 degrees For internal faultcurrents within 90 degrees Of each other Figure 4 6 87N Neutral Differential 87N can be applied to An auto transformer The 87N differential has only one setting that of IOmin The slope char acteristics like 87 are user adjustable There is no fast trip function for the 87N protection function Transformer Feeders Highest Priority Top Oil 110 normal T PRO calculates hot spot temperature CI Ambient Other Functions SCADA Alarm Block Tapchanger Prevent Load Restoration etc Figure 4 7 49 1 to 49 12 Thermal Overload Modules Thermal overload protection protects the transformer winding from excessive insulation damage due to heavy loading and or high temperature conditions There are 12 identical devices that use a combination of current and tempera ture monitoring to shed and to restore load based on the level of current in the winding and or
142. nction provides security to the SLOPE function for external faults by ensuring that the phase angle of the fault currents are within 90 degrees of each other for internal faults 4 A rate of change of operating and restraint quantities function ROCOD This function compares the derivative of the operating and the restraint quantities If a fault is internal to the protection zone the positive derivative value of the operating quantity will always be greater than the derivative value of the restraint quantity This function therefore adds sensitivity to the differential protection A further description of the ROCOD function is pro vided for details see Delta Phase Slope Characteristic Supervision on page 4 6 D01386R04 20 T PRO User Manual 8700 4 1 4 Protection Functions and Specifications Fast Trip Area without harmonic restraint High Current Setting Normal Trip Area with harmonic restraint Operating Current IO pu O 3 5 Restraint Current IR pu Figure 4 1 Differential Protection Characteristic Differential Slope Characteristic Description The slope characteristic consists of a restraint current IR on the horizontal axis and an operating current IO on the vertical axis see 87 Differential Pro tection on page 4 1 IfIO and IR are in the normal trip area the 2nd harmonic restraint is examined to determine whether the trip should be blocked IfIO and IR are in the fast trip area the 2nd h
143. nctions and Specifications view the present values of trend quantities use the Metering option of the terminal mode interface Ambient Temperature in degrees Celsius if the ambient input is active Top Oil Temperature in degrees Celsius either calculated from ambient or measured if input is active Hot Spot Temperature in degrees Celsius calculated from Top Oil Tem perature Transformer Load HV side maximum current among phase A B and C in per unit Device 50 51HV pickup in per unit equal to the Dev51ADP s adaptive pickup value if Dev51ADP is turned on or equal to the default pickup set ting of Dev51 if it s turned off If ambient is not available the default pick up setting is used Accumulated loss of life in percent of total loss of life as defined by the C57 standard HV or LV side real power in MW for HV side PT power leaving the HV bus is positive and for LV side PT power going to HV side is considered positive HV or LV side reactive power in MVAR same definition as for real power above Maximum selected THD value in percent of the fundamental of all the an alog current inputs selected for protection Analog current inputs used for recording only not included T PRO User Manual 8700 4 31 4 Protection Functions and Specifications Logging Functions Event Log 4 32 The relay maintains a log of events in a 250 entry circular log Each entry con tains the time of the event plus an event description Thi
144. nding using Eguation 1 and Eguation 1A High Voltage Side _ _kVA__ 100000 _ I 251A BasePri BB kV 3 230 l I eltaFactor CTRatio HVBaseSec I HVBasePri CT 1 0 1 0044 st 1 0 550 Low Voltage Side p 100000 _ BasePri NG kV 3 115 kVA _ 5024 1 1 eltaFactor CTRatio LVBasePri CT I VBaseSec 1 0 1 0044 s02 ib T PRO Three Phase Testing 1 Three phase testing is done by applying a balanced 3 phase current into cur rent input group 1 and another balanced set of currents into current input group 2 2 For this example inject HV side currents at angles Ph A 20 Ph B Z 120 Phe 2120 LV side currents at angles Ph A 150 Ph B 230 Ph C Z 90 Explanation of LV Side angle Because of a 30 net shift on the LV Side adjust the LV test current angles by 30 If you had a 0 shift on both sides currents on the LV side for load or through fault conditions would be 180 from HV side i e current into the transformer HV side and out of transformer LV side is normal Shift the LV side by 30 because of the 30 delta connection 6 34 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide The testing the points in the following graphic are highlighted Dev 87 Differential Protection 4 0 35 3 0 2 5 3 20 9 1 5 1 0 0 5 Omin IRmin 0 0 1 2 3 5 6 it 8 9 IR
145. ned here Note that the right hand column above refers to the strongest phase i e the one with the most current as this is the phase that would operate first So for example if you continue with the same transformer example of HV 0 and LV 30 Low side angle is 30 which means you inject current into Phase A input to yield Operating LV currents on Phase A and Phase C in the T PRO Therefore inject Phase A only since it meets the condition of the T PRO seeing 2 currents in the LV side of the operating element Set this current to 0 to be the reference Now you know that it is necessary to see Phase A and Phase C currents in the HV side of the operating element the same phases as on the low side There is anet 0 shift on the HV side so from the Analog Phase Shift Table in Appendix L injecting Phase A will yield Phase A only and Phase B will yield Phase B only and Phase C will yield Phase C only So to obtain Phase A Phase C on high side inject current into polarity of Phase A and out of polarity Phase C This will simulate a through fault so in ject Phase A Phase C 180 See for details see Figure 6 27 Single Phase Test Connections on page 6 47 for connection diagram Single Phase Test Connections to T PRO Relay HV Side Current Input 1 LV Side Current Input 2 Figure 6 27 Single Phase Test Connections Step 4 Determining the additional Magnitude Correction Factor Using the abov
146. ng the IED Getting Started Use the right and left arrow keys and the Enter key to move around in the ter minal mode screen The mouse does not work in VT 100 terminal mode Items from the menu are selected by moving the highlight to the desired item and ac tivating it using the Enter key As a short cut use the first letter of the menu item to access it directly Key Function lt F2 gt Accept or Freeze or Execute lt F3 gt Quit or Exit lt Esc gt Back to previous menu level The menu tree consists of a series of sub menus for details see Figure 3 3 Ter minal Mode Menus on page 3 8 The Enter key allows you to toggle through a list of selections i e enabled dis abled The Enter key toggles forward through the list while the space bar moves backward through the list In this manner you do not have to scroll through the entire list to get back to a previous selection you can use the space bar For certain lists a pick box appears when there is a long list of selections to chose from for example ProLogic inputs You can scroll though these boxes with the arrow keys or the Enter key Use the F2 key to make a selection or F3 to leave T PRO User Manual 8700 3 7 3 Using the IED Getting Started yne4 yBnowy apr 40 sso spueJ B011u9 3 SpJo28H oselj Yi a 6b60 spejuog 1ndino IIO do quaiquiy GOl Sal SYI LOL LAI LYI OA AA VA 9jeJqie
147. ngle in positive direction from 90 At 1 0 to 1 0 expect 0 67 Alarm Low 6 Ramp current angle in negative direction from 90 At 179 to 181 expect 180 67 Alarm Low 7 Turn currents off Keep voltage on for the timing test 67 Alarm lt Low 67 Timing Test 1 Monitor timer stop on Output Contact 5 2 Set timer start from 3 phase current default angles 0 to 3 60 A transition 3x pickup Time TMS DEC 8 0 0228 0 0103 F 8 0 0228 ESP 3 895 Delay multiple 1 3 1 T PRO Target Dir Overcurrent 67 Trip End of 67 test T PRO User Manual 8700 6 17 6 Acceptance Protection Function Test Guide rud Instantaneous Settings and Time Overcurrent Three e 50 Pickup 1 5 per unit Phase Test 5 Pickup 1 2 per unit Time Curve IEEE Very Inverse A lt 3 922 B 0 0982 p 2 TMS 4 0 50HV Enabled Tp Out 14 0 IHVA CT Ratio Select Maximum Phase Current for Out 7 50 Element 51 Element Out 2 a O 51HV Enabled Ipickup adjusted by 51ADP if enabled Figure 6 16 Logic phase Overcurrent 50 51 Magnitude Correction and 310 Elimination IHVB IHVC 50 51 Three Phase Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 51 Alarm 2 Apply balanced 3 phase currents to the T PRO terminals as follows Ph A 300 301 1 0 A 20 Ph B 3
148. nitor Enab N TA Imax gt Pickup Level Hysteresis 7 Z Tat Through Fault Event Initiation Rising Q22222 22 2 ke es ee pS es RE s Edge FA sl start Calculation of Through Fault Duration JA ka e IB Peak IC Peak Calculation stoped Clear reset all the calculated Falling LAFLASt IB IB t IC IC t All the through fault through fault quantities so as Edge quantities are ready to be ready for the next Maximum through fault event or stop Fault Duration Allowed 7 30s S i pe 2nd Harmonics Maji roomier Through Fault Blocking Enabled paz Event Loggin Tp2 Increment gging J a 2nd Harmonics e Td2 Restraint Signal J From Dev87 Total Accumulated IA IA t gt Limit A X Total Accumulated IB IE t gt Limit pL r I t Alarm Total Accumulated IC IC t 2 Limit Figure 4 15 Overall Through Fault Monitor Scheme The through fault duration is defined as from when the input current Imax the maximum current among phase A B and C exceeds the pickup threshold to when Imax drops below the pickup threshold hysteresis Note that the maxi mum allowed through fault duration is 30 seconds this is to avoid the through fault event may never stop in case the pickup setting is set improperly so that the through fault event might be t
149. nput C lt Unused 0 gt T PRO User Manual 8700 Appendix B 15 Appendix B IED Settings and Ranges Appendix B 16 T PRO Settings Summary Name Symbol Value Unit Range EI Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 5 ProLogic 5 ProLogic 5 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 6 ProLogic 6 ProLogic 6 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 Dropout Delay 0 00 s 0 00 to 999 00 Operator 1 Input A lt Unused 0 gt Operator 2 Input B lt Unused 0 gt Operator 3 Input C lt Unused 0 gt Operator 4 Input D lt Unused 0 gt Operator 5 Input E lt Unused 0 gt PL 7 ProLogic 7 ProLogic 7 Disabled Target Enabled Pickup Delay 0 00 s 0 00 to 999 00 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Dropout Delay
150. nput Names 1 Spare 1 2 Spare 2 3 Spare 3 4 Spare 4 5 Spare 5 6 Spare 6 7 Spare 7 8 Spare 8 9 Spare 9 Output Contact Names Output 1 Spare 1 Output 2 Spare 2 Output 3 Spare 3 Output 4 Spare 4 Output 5 Spare 5 Output 6 Spare 6 Output 7 Spare 7 Output 8 Spare 8 Output 9 Spare 9 Output 10 Spare 10 Output 11 Spare 11 Output 12 Spare 12 Output 13 Spare 13 Output 14 Spare 14 Nameplate Data Transformer 3 Phase Capacity 100 0 MVA 1 0 to 2000 0 Transformer Winding 3 Tap Changer Range 0 100 to 100 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Normal Loss of Life Hot Spot Temp 110 0 C 70 0 to 200 0 Transformer Temperature Rise 65 C Transformer Cooling Method Self cooled Temp Rise Hot Spot TRiseHS 25 00 C Temp Rise Top Oil TRiseTop 55 00 C Temp Rise Time Const Hot Spot TauHS 0 08 hours Temp Rise Time Const Top Oil TauTop 3 00 hours Ratio of Load Loss to Iron Loss R 3 20 Hot Spot Temp Exponent m 0 80 Top Oil Temp Exponent n 0 80 Winding Voltage Input Connection PT Turns Ratio 2000 0 1 0 to 10000 0 Location HV Transformer NamePlate HV as PT Source Voltage 230 0 kV 115 0 to 1000 0 Connection NG Phase o Lv Voltage 115 0 kV 13 8 t
151. nterface through a telephone link between the relay and your computer using an optional internal modem If the modem has been installed Port 5 on the rear panel is labelled INTERNAL MODEM Connect the relay s Port 5 to an analog telephone line or switch using a stan dard RJ 11 connector When an internal modem is installed the relay s Port 2 is used to interface to the modem internally Appropriate Port 2 settings are configured at the factory when the internal modem is installed The factory defaults are M0S0 0 amp B 1 for an external modem and M0S0 0 for an internal modem PC with TCP IP 10BaseT TCP IP Network Port 5 RJ 45 Network Figure 2 4 Network Link You can access both the relay s user interface and DNP3 SCADA services si multaneously through the same network port with an optional Ethernet TCP IP LAN link If the Ethernet option has been installed Port 5 on the rear panel will be labelled NETWORK The user interface accessed through the LAN is the same as that available through a direct serial connection or a modem link but requires the use of a Telnet client on your PC The HyperTerminal program which is included in Windows XP and is also available separately as HyperTerminal PE provides Telnet services To select Telnet go to HyperTerminal s Properties dialog box and set the Connect Using field to TCP IP Winsock If this option is not avail able in the pick list you requir
152. ny other point being tested 6 48 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide Conclusion The only additional multipliers required to obtain single phase test currents from 3 phase test currents are the multipliers in the Single Phase Correction Factor Table on page 6 48 Note Single phase correction factor in these diagrams means multiplying 3 phase calculated amperes by this value to find the single phase test current Also these connections are applicable to any side Find the appropriate con nection for each side Other single phase test connections to obtain A B in polarity A out po larity B 0 Connection 460 Connection T PRO 8700 Terminals HV LV or TV T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor 1 0 Single Phase Correction Factor 1 0 120 Connection 180 Connection AC T PRO 8700 Terminals HV LV or TV T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor 1 0 Single Phase Correction Factor 1 0 120 Connection 60 Connection AC T PRO 8700 Terminals HV LV or TV T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor 1 0 Single Phase Correction Factor 1 0 T PRO User Manual 8700 6 49 6 Acceptance Protection Function Test Guide 6 50 430 Connection T PRO 8700 Terminals HV LV or TV Single Phase Correction Factor 3 490 Connection AC e
153. o 230 0 Connection Y Phase 0 TV Voltage 13 8 kV 1 0 to 115 0 Connection Y Phase 0 CT Connections Current Input 1 Winding HV Connection Y Phase 0 Turns Ratio 100 00 1 1 00 to 10000 00 External Input Selection lt Not Used gt Current Input 2 Winding LV Connection Y Phase 0 T PRO User Manual 8700 Appendix B 3 Appendix B IED Settings and Ranges Appendix B 4 T PRO Settings Summary Name Symbol Value Unit Range aaa Turns Ratio 200 00 1 1 00 to 10000 00 External Input Selection lt Not Used gt Current Input 3 Winding TV Connection Y Phase 0 Turns Ratio 1667 00 21 1 00 to 10000 00 External Input Selection Not Used Current Input 4 Winding NC Connection Y Phase 0 Turns Ratio 450 00 1 1 00 to 10000 00 External Input Selection lt Not Used gt Current Input 5 Winding 51N 87N Connection Y Phase 0 Turns Ratio 4000 00 i1 1 00 to 10000 00 External Input Selection Not Used Ambient Temperature Scaling Max Valid Temperature 50 0 sc 40 0 to 50 0 Min Valid Temperature 50 0 C 50 0 to 40 0 Max Correlating Current Value 20 00 mA 5 00 to 20 00 Min Correlating Current Value 4 00 mA 4 00 to 19 00 Top Oil Temperature Scaling Top Oil Calculated Max Valid Temperature 200 0 C 30 0 to 200 0 Min Valid Temperature 40 0 C 50 0 to 190 0 Max Correlating Current Value 20 00 mA
154. oftware Connections Temp Time Const Top Oil TauTop hours 0 02 to 20 00 Ratio of Load Loss to Iron Loss R 0 50 to 10 00 Hot Spot Temp Exponent m 0 50 to 2 00 Top Oil Temp Exponent n 0 50 to 2 00 Windings CT Connections Winding CT PT Connections Transformer Nameplate Voltage Input Connection HY Tv Voltage kV 230 0 115 0 13 8 PT Turns Ratio 2000 0 1 Connection v Y z h z Location Hv pa Phase deg lo EI ref A Phase E ze z Current Input Connection CT CT Phase CT Turns Current Inputs Winding Connection deg Ratio 1 External Input input 2 fev sv s sz x w rs Input 5 TY z Il z x 4000 00 none z Figure 5 10 Windings CT Winding CT Connection Transformer Nameplate Winding HV LV TV Voltage kV LV to 1000 0 TV to HV 1 0 to LV Connection Choose delta or wye Choose delta or wye Choose delta or wye Phase degree 0 30 60 180 30 60 Options depend on connection Voltage Input Connection PT Turns Ratio 1 1 0 to 10000 0 Location HV or LV Current Input Connection Current Input 1 to 5 Winding HV LV TV NC 51N 87N for Input 5 87N auto for Input 5 CT Connection Choose delta or wye CT Phase degree 0 or 180 30 or 30 Options depend on connection T PRO User Manual 8700 D01386R04 20 D01386R04 20 5 Offliner Settings Software CT Turns Rat
155. ons use the fundamental component of the analog inputs except for THD Alarm 87 Differential The differential protection is used to detect transformer faults within the zone Protection defined by comparing the currents on the HV LV and TV side of the trans former The differential protection consists of four functions and are as follows 1 A slope characteristic consisting of two slopes SI and S2 and an IOmin part The slope characteristic is user adjustable In the T PRO relay the S1 parameter is typically set at 20 the S2 param eter at 40 and the break point between the two slopes IRs is linked to and at 2 times the transformer MVA user setting The minimum pick up IOmin is user settable and defines the minimum amount of fault current reguired to result in the slope characteristic opera tion The slope function is also controlled by the second and fifth harmonic cur rent restraint functions These functions are used to detect transformer en ergization and are used to block the differential function trip 2 The fast trip function is related to the slope characteristic function but does not have any slope characteristic This function is a constant operating cur rent horizontal line that is user settable 3 A phase angle delta phase supervision function that provides supervision to the slope characteristic This function is described in detail later see Delta Phase Slope Characteristic Supervision on page 4 6 This fu
156. opy by clicking on Download Adobe Acrobat Anti virus Anti spyware Software If an anti virus anti spyware software on your local system identifies any of the ERLPhase applications as a potential threat it will be necessary to con figure your anti virus anti software to classify it as safe for its proper oper ation Please consult the appropriate anti virus anti spyware software documentation to determine the relevant procedure Offliner Features The Offliner software includes the following menu and system tool bar Help User Manual About T PRO Offliner File Edit Tools Window Help B 2 ARI New Save Print About Show or Hide Open Cut Paste Copy Left Hand Side Graph Tree to Clipboard Figure 5 2 Top Tool Bar Tool Bar Windows Menu Icon Restore minimize close File New open close save save as convert to print print setup and exit Edit Undo cut copy paste Tools Options T PRO User Manual 8700 D01386R04 20 Graphing Protection Functions D01386R04 20 5 Offliner Settings Software Window Cascade tile Help User Manual About T PRO Offliner Settings Program Icons New Create a new document Open Open an existing document Save Save the active document Cut Cut the selection Copy Copy the selection Paste Insert clipboard contents Copy graph to clipboard Copy graph to clipboard Print Print act
157. or diagnostic purposes The green light stays off and the relays remain de energized even for a successful re start Only a power down power up will reset the LED to green and re energize the relays D01386R04 20 T PRO User Manual 8700 Appendix D 3 Appendix D Event Messages Self Check Fail due to DC Offset Detector Appendix D 4 Note For either of the above cases the DSP controller functions con tinue with normal auxiliary relay outputs provided that DSP failure or Self Check Fail Block has not occurred The DSP has an algorithm that detects continuous de levels on the analog in puts and initiates alarms and relay output contact blocking when the measured de level exceeds the Alarm or Block level The Alarm level is intended to pro vide an early indication of a problem The Block level blocks the relay from false tripping by preventing any output contact from closing The Relay Func tional LED turns off but the protection functions will operate normally with the exception that the output contacts will not be allowed to close The Relay Inoperative contact will close for a Block condition The following table de scribes all the Alarm Block indication functions Action Condition Alarm Block Relay Functional LED off x Service Required LED on x x Self Check Fail Signal high x x Relay Inoperative Contact closed x Output Contacts held open x Event Log Message x x Status available t
158. perature of 130 C see Table 65 C Rise Transformer in Appendix M on page Appendix M 6 not a dan gerous level Suppose also that the ambient temperature is 35 C From the curves the Allowed Loading is 1 1 per unit In other words the inverse time overcurrent relay pickup will adapt to 1 1 per unit At an ambient of 25 C a 48 overload trip level would pertain What does this mean The meaning is that at just under this trip level the trans former insulation is deteriorating at just under 8 times the normal rate This is not a problem unless the situation is never balanced by lower operating lev els as is usually the case Another way of looking at this is that the adaptive feature with settings of rate of loss of life greater than normal allows temporary overloads Note that the shape of the inverse time curve above 2 per unit current is not af fected as shown in for details see Figure M 2 Adaptive Pickup Characteristic on page M 3 Overload Fault 0 7 1 0 1 5 2 15 Current per unit Tod Hot day Cold day Figure M 2 Adaptive Pickup Characteristic The Trend Logging feature of the T PRO relay allows you to keep track of the accumulated loss of life to ensure that overloads are not causing a long term problem D01386R04 20 T PRO User Manual 8700 Appendix M 3 Appendix M Loss of Life of Solid Insulation Overloading Curves for 65 C Rise Transformers Allowed Loading 65 degC rise Transformer
159. ppendix E Modbus RTU Communication Protocol Report Slave ID Function Code 17 0x11 A fixed response is returned by the IED including system model version and issue numbers Channel Type Bytes Value Model Number Read Only Oand 1 0 x 21FC 8700 decimal Version Number Read Only 2and3 Version number Issue Number Read Only 4 and 5 Issue number The T PRO IED model number is 8700 Version and issue will each be positive integers say X and Y The T PRO is defined by as Model 8700 Version X Issue Y Accessing T PRO Event Information All T PRO detector event messages displayed in the Event Log are available through Modbus The following controls are available Refresh Event List Function Code 6 address 40769 Fetches the latest events from the T PRO s event log and makes them available for Mod bus access The most recent event becomes the current event available for reading Acknowledge Current Event and Get Next Event Function Code 6 address 40770 Clears the current event from the read registers and places the next event into them An acknowledged event is no longer available for reading Get Next Event Function Code 6 address 40771 Places the next event in the read registers without acknowledging the current event The current event reappears in the list when Refresh Event List is used Size of Current Event Message Function Code 3 address 4
160. put Phase Corrections Magnitude Corrections The three steps are described in the following sections Selection of reference current input The reference current input is the CT input that will be used as a reference for all the other CT inputs All corrections will be performed with reference to this input This selection is done automatically by the relay and is defined as being the first input on the PT side Consider the following example Input 1 Input 2 Y Ma 11b I1c 12a I2b I2c Hv Transformer Input 5 YIN JA I5a 15b I5c Lv Input 3 Input 4 13a I3b I3c 14a 14b 14c Figure 4 2 Reference Current Input T PRO User Manual 8700 D01386R04 20 Phase Corrections There are two corrections reguired one for the transformer winding and one for CT connections These corrections are always applied with reference to the reference input Consider the above example 4 Protection Functions and Specifications The following table describes what corrections must be made to each input based on the example above Table 4 1 Phase Corrections Winding IV ge Wand Phase ut i ia Phase Tiris St ab ing Conn Ratio Shift Required HV 230 Y O ref 1 Y 00 200 1 00 00 00 2 A 300 250 1 300 309 o LV 115 A 300 3 Y 0 400 1 30 30 0 4 A 30 450 1 609 4609 o TV 13 8 4309 5 Y 0 4000 1 4309 309 0 D01386R04 20 The
161. puts Define meaningful names for the nine external digital inputs External Input Names Output Contacts 1to 9 User defined Output Contact Names Output 1 Spare 1 Output2 Spare2 Qutput3 Spare3 Output 4 Spare4 O Output 5 Spares Cs Output 6 Spare6 Output 7 Spare Output Spares OO Output 9 Spares OO Output 10 Spare 10 Output 11 Spare11 OOOO Output 12 Spare 12 Output 13 Spare 13 Output 14 Spare OO Figure 5 8 Output Contacts Define meaningful names for the 14 output contacts Output Contact Names T PRO User Manual 8700 Outputs 1 to 14 User defined D01386R04 20 Nameplate Data D01386R04 20 Nameplate Data 5 Offliner Settings Software Transformer 3 Phase Capacity 1 2000 MVA 100 0 Maximum Transformer Rating Transformer Windings 3 Tap Changer Range 0 Normal Loss of Life Hot Spot Temperature 110 0 PC Note IEEE Standard 110 C for 65 C rise trf 95 C for 55 C rise trf Transformer Temperature Rise 85 NG Transformer Cooling Method Self cooled Temp Rise Hot Spot TriseHS 25 00 C Temp Rise Top Oil TriseTop 55 00 C Temp Time Const Hot Spot TauHS 0 08 hours Temp Time Const Top Oil TauTop 3 00 hours Ratio of Load Loss to Iron Loss R 3 20 Hot Spot Temp Exponent m 0 80 Top Oil Temp Exponent n 0 80 Figure 5 9 Nameplate Data
162. r Manual 8700 6 23 6 Acceptance Protection Function Test Guide 87 Differential Test 6 24 This section covers the testing of the minimum operating point For more detailed testing see the example in T PRO Differential Slope Test Example on page 6 33 Settings 1A 11B gt NC I2A I2B gt I2c I3A I3B I3C I4A I4B I4C ISA I5B I5C TO jn 0 3 per unit IRs 2 0 per unit Slope 1 20 Slope 2 40 CT Ratio Mismatch Correction and 310 Elimination Input 1 CT Ratio Mismatch Correction and 310 Elimination Input 2 CT Ratio Mismatch Correction and 310 Elimination Input 3 CT Ratio Mismatch Correction and 310 Elimination Input 4 CT Ratio Mismatch Correction and 310 Elimination Input 5 gt R 11 12 13 14 15 IO IHV ILV ITVI IOA IOB IOC 2nd Harmonic 115 Restraint 4 Trip A Trip B Out 1 Trip C j law 5th Harmonic ES IR Restraint IRA IRB IRC 2 Figure 6 20 Logic Phase Differential 87 Magnitude Correction Factor MCF _ HVkV HVCTRatio 230 250 LVkV LVCTRatio 115 500 Note A delta connected CT on either side would add an additional factor of V3 to that side High side current at base 1 00 A in the Calculations section Low side current at base HighSideCurrentAtBase MCF 1 004 1 00 1 004 Therefore HVMinimumOpe
163. r Manual 8700 V Version Compatibility D01386R04 20 This chart indicates the versions of Offliner Settings RecordBase View and the User Manual which are compatible with different versions of T PRO firmware RecordBase View and Offliner Settings are backward compatible with all ear lier versions of records and setting files You can use RecordBase View to view records produced by any version of T PRO firmware and Offliner Settings can create and edit older setting file versions Minor releases designated with a letter suffix e g v3 1a maintain the same compatibility as their base version For example T PRO firmware v3 1c and Offliner Settings v3 1a are compatible T PRO Firmware Software Compatibility Guide Has ha Compatible Offliner Settings v4 2 11 4000 v1 1 or greater v4 1a 10 v4 1 and greater v4 1 10 v4 1 and greater v3 5c 8 v3 5 and greater v3 5b 8 v3 5 and greater v4 0 9 v4 0 and greater v4 0 9 v4 0 and greater Please contact ERLPhase Customer Service for complete Revision History T PRO User Manual 8700 vii 1 Overview Introduction D01386R04 20 The T PRO model 8700 is a microprocessor based relay providing protec tion monitoring logging and recording for a power transformer For asset management the T PRO includes adaptive overload load shedding options and transformer overload early warning system TOEWS functions T PRO has two working modes online and offline
164. r a through fault IO ry v ge lat 3 2 4 Testing of IO min minimum operating current Apply balanced 3 phase currents Watch for Target 87 Trip IO min 0 3 per unit and IR 0 0 per unit HV Onin Apply 3 phase current ramp up IHvbase sec X IO ta 1 004 x 0 3 20 301 A LV IOnin Apply 3 phase current ramp up Ir vbase sec X LOmin 1 004 x 0 3 20 301 A 6 36 T PRO User Manual 8700 D01386R04 20 6 Acceptance Protection Function Test Guide Minimum Operating Current of the Differential Element Inject HV Current Only Inject LV Current Only 0 3 pu x 1 004 0 3 pu x 1 004 5 Test IR IR minimum restraint current 1 5 per unit o SLR in 4 100 z 20x Rin 100 Note at JR IR in 10 IO min Therefore solve for Ijy and I y at IO 0 3 per unit and IR nin 1 5 per unit Use Formulae 2 and 3 from above to solve for IO and IR IO Igy lpy 0 3 Iny liy _ Cavt loy 2 15 Cay un 15x2 bg 3 0 1 uy 1 LV D01386R04 20 T PRO User Manual 8700 6 37 6 Acceptance Protection Function Test Guide Determine the currents reguired to operate the 87 element using the above for mulae Solve for Ijyy by adding the two equations together 03 aa a 43057 Tay Total3 3 21 3 3 Cg Igy 1 65pu THYamps E Tr Vbasesec XT pperunit 1 004 x 1 35 1 3564 Now solve for Ij by subtracting the two equations 0 3 Ipy liy 3 0 Igytlpy Total 2 7 2I 2
165. r the neutral associated with HV wye connected winding 15B for LV I5C for tertiary Settings HV kV 230 kV e Og 0 3 per unit Rs 5 0 per unit Slope 1 2096 Slope 2 40 HV CT Ratio 250 1 Neutral CT Ratio 100 1 11A CT Ratio MB Mismatch Correction 11C Input 1 O IA IB IC IN I2A CT Ratio IOHV IOLV IOTV I2B Mismatch Correction I2C Input 2 IO 4 87N HV Trip Out 6 I3A CT Ratio 13B Mismatch 87N LV Trip Correction I3C gt Input 3 EN 87N TVTrip i HA gt CT Ratio gt IR Mismatch 14B Correction 14C Input 4 IRHV IRLV IRTV I5A cr Ratio RE AHBHCAN Mismatch 2 ISB Correction 15C gt Input 5 Figure 6 23 Logic Neutral Differential 87N MCF Calculation PhaseCTRatio 250 MagnitudeCorrectionFactor MCF NeutralCTRation 100 2 50 Phase Winding 87N lO min Pickup Calculation Expect for ISA HV winding side gt _ KVA l T 100e3 l IOmin z IOminPerUnit 0 3 0 304 J3 kv CTR 3 230 250 D01386R04 20 T PRO User Manual 8700 6 31 6 32 6 Acceptance Protection Function Test Guide Neutral Winding 87N lOmin Pickup Calculation Expect for ISA HV winding side kVA 1 100e3 1 IOmin IOminPer Unit 8 0 3 0 753A 3 kv CTR 3 230 100 Note Repeat previous calculation for LV and TV winding side
166. rate 0 3pu 1 004 0 304 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide LVMinimumOperate HVMinimumOperate MCF 0 30A x 1 00 0 304 87 HV Minimum Operate Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 87 Trip 2 Prepare to apply balanced 3 phase currents to the T PRO terminals as fol lows Ph A 300 301 20 Ph B 302 303 Z 120 Ph C 304 305 7120 3 Simultaneously and slowly ramp all 3 currents up At 0 29 to 0 31A expect 0 301A 87 Trip lt High Contact 1 lt Closed 4 T PRO Target Diff 87 on Trip phase target will depend on which reaches pickup first The exact same test can be applied to the LV Side since the MCF is 1 0 Testing 87 HV Minimum Operate Single Phase To test single phase obtain an additional MCF to compensate for the T PRO Zero sequence elimination T PRO uses formulae from Analog Phase Shift Table in Appendix L T PRO is a 3 phase relay but will operate on a phase by phase basis i e when the differential setting is exceeded on any one phase or more the 87 element will operate Calculate how much current each phase of the T PRO will see by using 1 0 A as a base in the formulae of Analog Phase Shift Table in Appendix L The result gives a ratio that 1s valid for any magnitude of current applied For a 0 shift which is present on the HV side Y Z0 Y
167. ration fixed at 1 s Sometimes Configurable Timeouts in seconds while waiting for Data Link Confirm None x Fixedat2 Variable Configurable Complete Application Fragment x None Fixed at 2 Variable Configurable Application Confirm None x Fixedat5 Variable Configurable Complete Application Response x None Fixedat2 Variable Configurable Others Select to execute delay None x Fixedat10 Variable Configurable Sends Executes Control Operations WRITE Binary Outputs x Never Always Sometimes Configurable SELECT OPERATE Never x Always Sometimes Configurable DIRECT OPERATE Never x Always Sometimes Configurable DIRECT OPERATE No ACK Never x Always Sometimes Configurable Count gt 1 x Never Always Sometimes Configurable Pulse On Never x Always Sometimes Configurable Pulse Off x Never Always Sometimes Configurable Latch On Never x Always Sometimes Configurable Latch Off Never x Always Sometimes Configurable Queue x Never Always Sometimes Configurable Clear Queue x Never Always Sometimes Configurable Report Binary Input Change Events when no spe cific variation requested Never Only time tagged x Only non time tagged Configurable to send both one or the other Reports time tagged Binary Input Change Events when no specific variation requested Never x Binary Input Change with Time Binary Input Change
168. rd Retrieve Records from the Relay To retrieve records from the relay do the following 1 Navigate to Records gt List and press Enter a records list appears 2 Select Records using the space bar and select R You can also press Enter to retrieve a record directly The record will be saved in the directory spec ified by the terminal emulation program When using HyperTerminal if Use receiving protocol is set to Z modem with Crash Recovery file transfers are skipped by HyperT erminal if the record already exists in the downloads folder When using HyperTerminal use Z modem no crash recovery files are received and auto incremented Delete Records from the Relay To delete records from the relay do the following 1 Navigate to Records gt List and press Enter 2 Select the records for deletion with the space bar and select D The selected records will be deleted Event Log Protection Events Through Fault Peak Through Fault I I t The event log lists events stored in the relay A complete list of the types of events logged is available for details see Event Messages in Appendix D If an event triggered a record then an R is displayed by the event Protection Events Lists all the events except the Through Fault events Through Fault Peak Lists Through Fault peak value events Through Fault I I t Lists Through Fault I I t value events including the total number of Through Fault
169. re not used T PRO allows assignment of external control to the ac input as indicated in the above figure In this example ac current inputs 1 2 3 are controlled by external inputs 1 2 3 respectively i e the ac current input will be automatically shut off internally when the corresponding external input is high In general each of 5 ac current inputs can be controlled by any of the relay s external inputs In this way the differential protection and overcurrent protection will automati cally adapt to the different transformer configurations in real time T PRO User Manual 8700 5 11 5 Offliner Settings Software 5 12 Temperature Scaling Temperature Scaling Ambient Max Valid Temperature 50 0 C Min Valid Temperature 50 0 C Max Correlating Current Value 20 00 mA Min Correlating Current Value 4 00 mA Top Oil Calculated C Sensed Max Valid Temperature 200 0 Min Valid Temperature 40 0 Max Correlating Current Value 20 00 mA Min Correlating Current Value 4 00 m C C Figure 5 11 Temperature Scaling Ambient and Top Oil Temperature Relate the Ambient and Top Oil temperature range with the corresponding mA input current quantity This relationship is defined at both the high and the low levels An input received outside this range results in an alarm indicating an over or under condition You can also set whether the top oil is sensed or cal culated Temperature
170. rget 3 3 communication direct serial link 2 2 DNP3 F 1 internal modem link 2 4 modbus E 1 network link 2 4 with the relay 2 2 communication ports 2 9 communication wiring 7 1 communication with the relay 2 2 connections 5 10 6 5 converting a settings file 5 4 creating a setting file from an older version 5 4 T PRO User Manual 8700 D date amp time 3 3 dc schematic drawing J 1 diagnostics 3 12 differential slope test 6 33 direct serial link 2 2 display 3 4 DNP3 F 1 E erase 3 12 event log 3 11 4 32 event messages D 1 external inputs 3 9 5 8 F firmware update 2 13 front display 3 2 3 4 front view 1 3 function line diagram 1 2 G graphing protection functions 5 3 grounding 2 1 H hardware C 1 hot spot temperature 4 13 N 1 HyperTerminal 2 5 ID 3 9 identification relay 5 6 Installation software 5 2 installation 7 1 IRIG 3 2 IRIG B time input 2 1 L LED lights 3 2 load from Offliner 3 9 loss of life 4 13 4 14 M 1 M maintenance menu 2 12 mechanical drawings G 1 metering 3 10 3 14 modbus 3 12 E 1 modem link external 2 3 modem link internal 2 4 mounting 7 1 N nameplate 5 9 6 5 network link 2 4 O Offliner features 5 2 output contacts 5 8 output matrix 5 15 outputs 3 12 P password 3 5 3 13 physical mounting 7 1 power supply 2 1 ProLogic 4 29 5 13 push buttons 3 3 Q quit 3 13 R rear panel drawings H 1 record length 5 14 RecordBase View 5 5 recording 4 30
171. riggered under some load conditions Pickup delay Tpl and dropout delay Tdl are set to zero by default however they can be set to other values based on user s needs The 2nd harmonics restraint logic output from device 87 is brought here to be used to block the through fault event creation on inrush The pickup and drop out timer Tp2 and Td2 are used to distinguish between the 2nd harmonics caused by the fault transient and the 2nd harmonics caused by transformer en T PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications D01386R04 20 ergization inrush 2nd harmonics in the fault current only last for a very short period of time e g 1 cycle or shorter and 2nd harmonics in the inrush current last for quite a long time e g a second or even longer The figure below showed that the 2nd harmonics existed in the fault current during load to fault transition Time Graph Bk1 Fars IB 5 X 225262 041220034 A 541445296 A 0 oO 0 080 0 060 0 040 d 0 020 b 0 000 0 020 0 040 goso X 002827s 0 001261 s al gt 50016675 Seconds 440 WTHD 120 40 63180 96 5 10 15 20 25 30 Harmonics Order E Mag 4 RMS E Phase 0 9 03872 0 121741 80 443115 131 T 0 86008 105 1 23408 113 0 49328 4113 0 76291 1082 0 44941 118 0 46737 95 gt o 4 c Co IMA la Figure 4 16 2nd Harmonics Contents in Fault Current Tp2 setting default to 20ms is used to
172. s 5 00 pu 1 50 to 50 00 S1 20 00 6 00 to 40 00 S2 40 00 20 00 to 200 00 CT Turns Ratio 100 00 1 1 00 to 10000 00 87N LV Enabled lOmin 0 30 pu 0 10 to 1 00 IRs 5 00 pu 1 50 to 50 00 S1 20 00 6 00 to 40 00 S2 40 00 20 00 to 200 00 CT Turns Ratio 200 00 1 1 00 to 10000 00 87N TV Enabled lOmin 0 30 pu 0 10 to 1 00 IRs 5 00 pu 1 50 to 50 00 S1 20 00 6 00 to 40 00 S2 40 00 20 00 to 200 00 CT Turns Ratio 1000 00 1 00 to 10000 00 49 1 Thermal Overload Current Input Switch OFF Pickup 1 20 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 10 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 01 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Target LED 49 2 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Appendix B 6 T PRO User Manual 8700 D01386R04 20 D01386R04 20 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0
173. s and the accumulated Through Fault I t values D01386R04 20 T PRO User Manual 8700 3 11 3 Using the IED Getting Started Utilities 3 12 Sub menus Setup Maintenance Diagnostics To access different levels within the relay Setup Maintenance Time set manual time IRIG B skew control Reguires change or service access level Ports change Baud rates on communication ports Reguires change or service access level SCADA select which SCADA protocol Modbus or DNP3 to run on the SCADA port Configure parameters for the selected protocol such as address or timeout Reguires change or service access level Calibrate calibrate all 18 analog ac Reguires service access level Outputs close and open output contacts independent of the associ ated relay functions Reguires service access level Erase use submenus Records Event Logs and Trends to erase these records from the relay memory Reguires service access level Loss of Life Enter initial value of transformer Reguires change or service access level Through Fault Preset or reset the accumulated Through Fault guantities Reguires change or service access level Diagnostics Transfer Diagnostics transfers relay diagnostic file to the PC The diagnostic file can be sent to ERLPhase for analysis Modbus allows Modbus Communications to enter its Diagnostic Mode Follow directions on
174. s log includes the time that the event took place and a predefined description of the event Trip and alarm events are logged only if these events have been user programmed to ini tiate output relay closures or have been programmed to initiate fault recording in the Output Matrix of the settings The event log can be viewed in two ways Front Panel The front panel display shows events in abbreviated form Trip and Alarm events only Terminal User Interface The full event log is available through the Event Log menu of the terminal user interface This display is a snapshot of the event list which must be manually refreshed to display new events that occur while the display is up There is a list of Event Messages for details see Event Messages in Appendix D T PRO User Manual 8700 D01386R04 20 5 Offliner Settings Software Introduction PC System Reguirements D01386R04 20 T PRO Offliner Settings Document 1 EF File Edit Tools Window Help n s m x eje la E Identification sh Ix lx Relay Identification identification Settings Version 8 Tv ignore Serial Number Reter to the serial number SerislNumber TPRO 8700 s20130 os i Sim kah on the back of the relay Unt io Unio Output Matrix Nominal CT Sec Current 5A T Record Length Nominal System Frequency 60 Hz v CO Settings Summary Comments Commen
175. s name Out n Open Output contact names are user assigned Where n 1 to 14 Output Contact name Out n Closed Output contact names are user assigned Where n 1 to 14 Self Check DC Ch n Alarm Continuous dc level on Ch n where n 1 to 18 T PRO User Manual 8700 D01386R04 20 Appendix D Event Messages T PRO Event Messages Self Check DC Alarm Reset Continuous dc level condition has reset Self Check DC Ch n O P Block Continuous dc level on Ch n where n lt 1 to 18 New Setting Loaded Manual settings load reguest completed Completion of user initiated settings change Unit recalibrated Unit restarted User logged in Details of Failure Modes T PRO Relay Inputs DSP X86 Digital Signal a Micro laptop ors Remote Connection Outputs Processor processor Watch dog Watch dog System Failure or Self Check Fail DSP Failure Service Required DSP to X86 on front panel goes Communication from off to red Relay Functional Failure or on front panel goes Self Check Fail from green to off Self Check Fail The Master Relay is de to user selectable energized Two of its aux output relay contacts open discon contacts close necting all power to the other auxiliary relays A separate contact labelled Relay Inoperative on the rear panel closes to activate a remote alarm The watch dog repeatedly attempts to re start the DSP f
176. s serial number supervision Retrieve To Offliner To transfer the relay s current settings to the PC do the following 1 Navigate to Settings gt Retrieve To Offliner 2 Select Enter 3 The relay asks you if you wish to continue Select Y for yes 4 The file is sent to the directory defined by the HyperTerminal menu Trans fer gt Receive File When using HyperTerminal use Z modem no crash recovery files are received and auto incremented Submenus Operating Analog Logic ProLogic I O Trend Dev 49 TOEWS Operating Provides information about the differential operating quantities Analog Provides secondary values of the ac analog voltages and currents Logic Provides the present status of the internal logic states ProLogic Displays the present status of all ProLogic states VO Displays the state of the external inputs and the output contacts Trend Provides trend quantities Dev 49 TOEWS Displays operating variables for current and temperature overload conditions T PRO User Manual 8700 D01386R04 20 3 Using the IED Getting Started Records Submenus List Fault Recording Trend Recording Event Recording Records contains the means for initiating and retrieving recordings List Lists all records Retrieve records from this menu Fault Recording Creates one fault record Trend Recording Creates one trend record Event Recording Creates one event reco
177. se Transformer Type 3 Cooling 5 Allowed Loading 65 degC rise Transformer Type 4 cooling 1 8 1 6 z 14 mi 912 o 2 1 O S 0 8 Relative rate of loss of life 9 64 top curve 32 3 0 6 16 8 04 4 2 0 2 1 bottom curve 0 40 35 30 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 6 Allowed Loading 65 C Rise Transformer Type 4 Cooling T PRO User Manual 8700 Appendix M 5 Appendix M Loss of Life of Solid Insulation Appendix M 6 Allowed Loading per unit Allowed Loading 65 degC rise Transformer Type 5 cooling Relative rate of loss of life 64 top curve 32 16 40 35 30 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 Ambient Temp deg C Figure M 7 Allowed Loading 65 C Rise Transformer Type 5 Cooling The above curves are for 65 C rise transformers Curves for 55 C rise trans formers can be supplied on request Each Relative rate of loss of life curve is related directly to a specific hot spot temperature as follows 65 C Rise Transformer Relative Rate of Loss of Life 1 2 4 8 16 32 Hot Spot Temperature C 110 116 123 130 137 145 55 C Rise Transformer Relative Rate of Loss of Life 1 2 4 8 16 32 Hot Spot Temperature C 95 101 107 113 120 127 T PRO User Manual 8700 D01386R04
178. sed 12 Case ground 13 9 programmable external inputs 14 This row contains two distinct areas from left to right Relay inoperative contact and 14 programmable output relay contacts Temperature inputs and isolated power supply 15 This row contains three distinct areas from left to right 15 ac current inputs 3 ac voltage inputs Power supply Figure 1 3 T PRO Back View D01386R04 20 T PRO User Manual 8700 1 3 1 Overview AC Current and Voltage Inputs External Inputs Output Relay Contacts Relay Inoperative Alarm Output T PRO is provided with terminal blocks for up to 15 ac currents and 3 phase to neutral voltages Each of the current input circuits has polarity marks A complete schematic of current and voltage circuits is shown for details see AC Schematic Drawing in Appendix I and DC Schematic Drawing in Appendix J The T PRO Relay contains 9 programmable external inputs External de volt age of either 48 125 volts or 125 250 volts nominal are possible depending on the range provided The T PRO Relay has 14 output relay contacts Each contact is programmable and has breaker tripping capability All output contacts are isolated from each other The output contacts are closed for a minimum of 100 ms after operation If the relay becomes inoperative then the Relay Inoperative Alarm output con tact closes and all tripping functions are blocked Model Options Ordering T PRO is available for either
179. ss or re establishment of external time source and automatically switch between internal and external time The relay is synchronized using IRIG B input modulated or unmodulated auto detect Synchronization Accuracy Sampling clocks synchronized with the time source internal or external Overall T PRO Accuracies Current 2 5 of inputs from 0 1 to 1 0 x nominal current In 1 0 of inputs from 1 0 to 20 0 x nominal current In Voltage 1 0 of inputs from 0 01 to 2 0 x nominal voltage Vn Differential element 5 0 of set value lOmin from 0 10 to 1 0 per unit pu Directional Phase Angle 2 5 or gt t 2 0 of set value from 0 01 to 360 0 Frequency Elements 0 001 Hz fixed level 10 05 Hz df dt Timers Inverse Overcurrent Timers 2 5 or 1 cycle of selected curve Definite Overcurrent Timers 2 5 or 1 cycle non directional Frequency Timer 2 5 of set value plus 1 25 cycles to 1 75 cycles of inherent delay fixed level at 2x pickup error lt 40 ms df dt at 0 1 Hz s above pickup error lt 100 ms Timers 3 ms of set value Burden AC Voltage Inputs lt 0 15 VA 67 volts AC Current Inputs lt 0 50 VA 5 amps D01386R04 20 T PRO User Manual 8700 Appendix A 3 Appendix A IED Specifications Freguency Element Operating Time Curves Figure A 1 Time delay Error at 2 Seconds Figure A 2 Time Delay Error at 1 Secon
180. ss than an hour and then falls back to normal levels a trip should not occur but will You can overcome these unreliability and security issues by using the loss of life concept The calculation is outlined in Top Oil and Hot Spot Tempera ture Calculation in Appendix N The 30 minute warning 15 minute warning and trip outputs occur if either the hot spot temperature or loss of life limits are exceeded The three settings are THS Trip Setting Use 175 C with loss of life protection enabled The latter will not allow tem peratures near this level to last too long T PRO User Manual 8700 4 13 4 Protection Functions and Specifications If loss of life protection were not enabled then a lower setting would be nec essary say 140 C a temperature at which oil bubbles might start to form de pending for one thing on the oil water content THS To Start Loss of Life Calculation For this 65 C rise transformer the normal hot spot temperature is 110 C Therefore some value above this is appropriate for the start of excessive loss of life calculation initiation Select 125 C Loss of Life Trip Setting Select 2 days as the setting This in combination with the above allows over loads similar to those recommended in the Standard C57 91 1995 A study for this transformer shows that for these settings a sudden overload will trip due to hot spot temperature for times less than about fifteen minutes and due
181. t Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 9 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 10 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 c 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 00 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 11 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 D01386R04 20 T PRO User Manual 8700 Appendix B 9 Appendix B IED Settings and Ranges Appendix B 10 T PRO Settings Summary
182. t Status Channel Address Value External I P 1 10001 0 off inactive 1 on active External I P 2 10002 0 off inactive 1 on active External I P 3 10003 0 off inactive 1 on active External I P 4 10004 0 off inactive 1 on active External I P 5 10005 0 off inactive 1 on active External I P 6 10006 0 off inactive 1 on active External I P 7 10007 0 off inactive 1 on active External I P 8 10008 0 off inactive 1 on active External I P 9 10009 0 off inactive 1 on active Read Holding register table Channel Address Units Scale T PRO Clock Time UTC Read all in same query to ensure consistent time reading data Milliseconds Now 40001 0 999 1 Seconds Now 40002 0 59 1 D01386R04 20 T PRO User Manual 8700 Appendix E 3 Appendix E Modbus RTU Communication Protocol Appendix E 4 Minutes Now 40003 0 59 1 Hours Now 40004 0 23 1 Day of Year Now 40005 1 365 up to 366 if 1 leap year Years since 1900 40006 90 137 1 Sync d to IRIG B 40007 0 No 1 Yes 1 Time of Acquisition UTC Read all in same query to ensure consistent time reading data Milliseconds Now 40008 0 999 1 Seconds Now 40009 0 59 1 Minutes Now 40010 0 59 1 Hours Now 40011 0 23 1 Day of Year Now 40012 1 365 up to 366 if 1 leap year Years since 1900 40013 90 137 1 Sync d to IRIG B 40014 0 No 1 Yes 1 Offset
183. t are not connected to the transformer e g for recording only or channels with low fundamental sig nals less than 14 of nominal current are not calculated for THD The alarm is activated if the highest THD found exceeds the setting There is a built in fixed time delay of from 30 40 seconds pickup and 1 10 seconds dropout to ensure that this is not just a fault condition This function is executed in a slow rate once per second The THD values are calculated from the 96 samples buf fer rather than the decimated 8 samples buffer because higher harmonics con tent up to the 25th can be included with 96 samples T PRO User Manual 8700 4 25 4 Protection Functions and Specifications Through Fault Monitor 4 26 Total Harmonic Distortion THD Alarm THD Alarm Enable disable Pickup 5 0 to 100 0 The Through Fault monitor function in T PRO is used to monitor the through faults that the transformer has experienced so as to analyze thermal and me chanical effects of through faults to the transformer The monitored guantities include the duration of each through fault the current peak RMS value and the accumulated I2t value of each phase during each through fault Besides the to tal number of the through faults and the total accumulated I2t values of each phase over the transformer life are also monitored The overall through fault monitor scheme is shown in the following figure Through Fault Mo
184. tails see Communication Port Details on page 2 9 An adapter is available for connecting an external modem to Port 2 For details see Modem Link External on page 2 3 The relay may have an optional internal modem or an optional internal 10BaseT Ethernet port Connection to either of these is via the relay s Port 5 RJ 45 receptacle Labeling above the port will indicate which option if any has been installed The relay accepts both modulated and unmodulated IRIG B standard time sig nals with or without the IEEE 1344 extensions The IRIG B connector on the back of the relay is BNC type Temperature Probes D01386R04 20 The ambient temperature probe must be mounted facing downward or horizon tally with a slight downward angle to prevent the accumulation of moisture Connection of external ambient and top oil temperature probes to the relay is detailed in Temperature Probe Connections in Appendix O T PRO User Manual 8700 7 1 Appendix A IED Specifications General T PRO Model 8700 Specifications Quantity Specifications Note Nominal Frequency 50 or 60 Hz Operate Time 1 to 2 cycle typical For 87 element including output contact operation Sampling Rate 96 samples cycle Records up to 25th harmonic Power Supply Nominal Range 48 to 250 Vdc 120 Vac Power Consumption 30VA 50 60 Hz Full Operating Range 40 to 300 Vdc Memory Settings and records are stored in non Records
185. te Roi dae 4 32 5 Offliner Settings Software 5 1 Introd ctlOn s ect n Rr PR EO RE ii 5 1 Installing PC Software aaa 5 2 Offliner Features ssssssssRHHe m 5 2 Handling Backward Compatibility 5 4 T PRO 8700 User Manual Table of Contents RecordBase View Software 5 5 Main Branches from the Tree View 5 6 6 Acceptance Protection Function Test Guide 6 1 Acceptance Testing asian sana nr aaa 6 1 T PRO Acceptance Test Procedure Outline 6 4 T PRO Differential Slope Test Example 6 33 T PRO Single Phase Slope Test 6 44 TB citi mee RI 7 1 Physical Mountilig ioci oo et ai a NA 7 1 AG and DG WINNING aNG ALIN Ee pde kes 7 1 Communication Wiring soot ente ee tho e durata angat 7 1 Temperature Probes 1 7770 nanasa nananana asaan 7 1 Appendix A IED Specifications A 1 Frequency Element Operating Time Curves A 4 Appendix B IED Settings and Ranges B 1 Appendix C Hardware Description C 1 Appendix D Event Messages D 1 Appendix E Modbus RTU Communication Protocol E 1 Appendix F DNP3 Communication Protocol F 1 Appendi
186. than 1 a trip signal is issued The 51 characteristic reset is a back integration process where the reset time is based on the time the relay takes to reset from its trip condition An adaptive feature is applied to device 51HV as well and is described in 51ADP Adaptive Overcurrent on page 4 21 The 50 device is an instanta neous element and operates when the Imax B is above the pickup level for the desired time 50 51 Phase Overcurrent Setting Functions 50 Pickup Minimum level that operates device 50 50 Pickup Delay Operating time for the 50 51 Pickup Minimum level that operates device 51 Curve Type Sets the type of curve TMS Factor for altering inverse time curve A B p Parameters for defining the curve TR 4 20 T PRO User Manual 8700 Factor for altering the reset time D01386R04 20 51ADP Adaptive Overcurrent D01386R04 20 4 Protection Functions and Specifications 50 51 Phase Overcurrent Setting Ranges 50 HV LV TV Enable disable Pickup pu 0 10 to 20 00 Pickup Delay seconds 0 00 to 99 99 51 HV LV TV Enable disable Pickup pu 0 50 to 2 10 for HV 0 10 to 5 00 for LV TV Curve Type See Table 4 2 IEC and IEEE Curves on page 4 16 Tms Time Multiplier Setting 0 05 to 1 00 if curve type is 1 to 3 0 50 to 10 00 if curve type is 4 to 6 0 05 to 10 00 if curve type is 7 0 7
187. the temperatures inside the transformer T PRO User Manual 8700 4 11 4 Protection Functions and Specifications Current Input Switch Pickup Setting with Hysteresis Tp1 Pickup Delay IHV RMS Max o A ILV RMS Max gt 0 ITV RMS Max gt ax o pk EE ma d1 j i Off o gt Logic Gate Td1 Dropout Delay Switch Temp Input Switch T Pickup Setting Output with Hysteresis Tp2 Pickup Delay Hot Spot Temperature meo n A E Top Oil Temperature O 1 m Off o 0 Td2 Td2 Dropout Delay L O Figure 4 8 Thermal Overload Protection Logic Diagram The Current Input Switch selects which winding current to either of the HV LV or TV windings It has a pickup level and delay setting as well as hyteresis and pickup dropout delay settings All current settings are in pu and the time settings are in seconds In this manner the current based portion of the 49 de vice is used to detect high loading situations and tolerates them for a specified time before the element operates When the level of current drops below pick up the hysteresis keeps the 49 device picked up until the current drops below the level specified by the hysteresis setting and the dropout delay timer has ex pired The Temperature Input Switch monitors the Top Oil Temperature sensed or calculated or the Hot Spot Temperature calculated based on inputs The set tings are made in a similar
188. ther 60 Hz or 50 Hz This example uses 5 A 60 Hz T PRO User Manual 8700 6 1 6 Acceptance Protection Function Test Guide Calibration 6 2 The relay is calibrated before it leaves the factory but if component changes are made within the relay you may need to do a re calibration Before you begin a new calibration establish the accuracy of the eguipment being used To perform a calibration you must be logged into the relay in Terminal Mode at the Service access level Proceed to the Utilities Maintenance Calibrate The Calibrate menu leads you through every analog input and prompts you to apply the appropriate guantity TPRO Unit ID UnitID Util Maintenance User Access Level SERVICE 2003Jun23 13 21 prey menu Outputs Erase Calibration Hain YA Main VB Main VC Main IA Calibrate AC Input Channel Main IB Main IC Channel Main VA Aux IA Aux Ji Enter Actual Applied Signal Level 69 Vrms nominal ESHI Vrms lt ENTER gt Calibrate lt E2 gt Accept lt E3 gt Quit Figure 6 1 Enter actual applied signal level TPRO Unit ID UnitID Util Maintenance User flccess Level SERVICE H 2003Jun23 13 22 prev menu Outputs rCalibration Hain VA Main YB Main VC Main IArCalibrate AC Input Channel MrStatus Message Calibrate error Gain reading 0 00 out of range 55 20 to 82 80 A A A any key I lt ENTER gt Calibrate lt E2 gt Accept lt F3 gt
189. tive Output Contact 12 00524 0 Contact Open inactive 1 Contact Closed active Output Contact 13 00525 0 Contact Open inactive 1 Contact Closed active Output Contact 14 00526 0 Contact Open inactive 1 Contact Closed active Dev 87 Trip 00769 0 Off inactive 1 On active Dev 87 Restrain 00770 0 Off inactive 1 On active Dev 87 Fast Trip 00771 0 Off inactive 1 On active Dev 51HV Trip 00772 0 Off inactive 1 On active Dev 51HV Alarm 00773 0 Off inactive 1 On active Dev 50HV Trip 00774 0 Off inactive 1 On active Dev 51LV Trip 00775 0 Off inactive 1 On active Dev 51LV Alarm 00776 0 Off inactive 1 On active Dev 50LV Trip 00777 0 Off inactive 1 On active Dev 51TV Trip 00778 0 Off inactive 1 On active T PRO User Manual 8700 Appendix E 1 Appendix E Modbus RTU Communication Protocol Appendix E 2 Dev 51TV Alarm 00779 0 Off inactive On active Dev 50TV Trip 00780 0 Off inactive On active Dev 51NHV Trip 00781 0 Off inactive On active Dev 51NHV Alarm 00782 0 Off inactive On active Dev 50NHV Trip 00783 0 Off inactive On active Dev 51NLV Trip 00784 0 Off inactive On active Dev 51NLV Alarm 00785 0 Off inactive On active Dev 50NLV Trip 00786 0 Off inactive On active
190. to 4x pickup Time TMS PA 0 0243 564 F 5 0 0243 ere 2 00s Delay Cnuttipie 1 4 1 B End of 50N 51N test Settings 67 Pickup lt 1 2 per unit Alpha lt 180 This is the positive sequence current angle start point with respect to positive sequence voltage angle Beta 180 This is the operating Window In this case the 67 element should operate between Alpha to Alpha Beta 180 to 180 180 180 to 360 Time Curve IEEE Moderately Inverse A 0 0103 B 0 0228 p 0 02 TMS 8 0 PT LV Side Alpha lt Line Angle lt Alpha Beta H ILVMax pu PT HV Side Alpha lt Line Angle lt Alpha Beta JH IHVMax pu Figure 6 15 Logic Directional Overcurrent 67 J gt Fouts 67 Test Procedure 1 In Terminal Mode access T PRO Metering gt Logic Monitor the following element for pickup 67 Alarm 2 Following are the default test guantities Apply balanced 3 phase currents to the T PRO terminals as follows Ph A 300 301 1 0 A Z 90 Ph B 302 303 1 0 A 244150 Ph C 304 305 1 0 A 7 30 T PRO User Manual 8700 D01386R04 20 D01386R04 20 6 Acceptance Protection Function Test Guide Apply single phase polarizing voltage to Ph A 330 333 66 4 V Z0 3 Slowly ramp the 3 phase currents up At 1 15 to 1 25 A expect 1 20 A 67 Alarm High 4 Increase currents to 2 0 A Observe 67 Alarm High 5 Ramp current a
191. to 10 0 Pickup Delay Tp2 0 02 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Target LED 49 3 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 03 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Target LED 49 4 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 Dropout Delay Td1 0 00 s 0 00 to 1800 00 Temperature Input Switch OFF Pickup 120 0 C 70 0 to 200 0 Hysteresis 1 0 C 0 0 to 10 0 Pickup Delay Tp2 0 04 hours 0 00 to 24 00 Dropout Delay Td2 0 00 hours 0 00 to 24 00 Logic Gate Switch OR LED Switch Alarm LED 49 5 Thermal Overload Current Input Switch OFF Pickup 1 00 pu 0 10 to 20 00 Hysteresis 0 10 pu 0 00 to 1 00 Pickup Delay Tp1 0 00 s 0 00 to 1800 00 T PRO User Manual 8700 Appendix B 7 Appendix B 8 Appendix B IED Settings and Ranges T PRO Settings Summary Name Symbol Value Unit Range
192. to trip off a capacitor bank on the HV side of the system if a controller fails 24 Overexcitation Setting Functions K Factor for altering inverse time curve Pickup 24INV Minimum level that operates device 24INV Reset Time Time for 24INV to reset after element has dropped out Pickup 24DEF Minimum level that operates device 24DEF Pickup Delay Operating time for 24DEF 24 Overexcitation Setting Ranges 24INV Enable disable K 0 10 to 100 00 Pickup pu 1 00 to 2 00 Reset Time seconds 0 05 to 100 00 D01386R04 20 T PRO User Manual 8700 4 15 4 Protection Functions and Specifications 59N Zero Seguence Overvoltage 24DEF Enable disable Pickup pu 1 00 to 2 00 Pickup Delay seconds 0 05 to 99 99 Zero Seguence Overvoltage protection is provided for ground fault monitor ing This function also uses standard IEC and IEEE curves as well as a user defined curve type You can apply the PT voltage source either to the HV or the LV side of the transformer When used apply the device 59N 3V to this winding to provide ground fault monitoring looking at the zero sequence voltage Pickup A TGV TMS B TA Ya T 3 VoPickup Reset TR T 3V TM 0 3V i 3V pickup Table 4 2 IEC and IEEE Curves No Curve Type A B p 1 IEC Standard Inverse 0 14 fixed 0 00 fixed 0 02 fixed 2
193. treated as a logic zero input o This symbol denotes a function which has not been T PRO Offliner Settings v8 Figure 5 13 ProLogic Example Lockout Trip The relay s integrated ProLogic feature provides Boolean control logic graph ic driven with multiple inputs to create an output based on qualified inputs ProLogic enables up to 10 ProLogic control statements and allows those logics to be programmed to output contacts Name the function being created and set a pickup and dropout delay Start with input A by selecting any of the relay functions or digital inputs using the pulldown list Repeat for up to 5 possible inputs Put these inputs into AND OR NAND NOR and exclusive logics by clicking on the gate Invert the input by clicking on the input line The output of ProLogic 1 can be nested into ProLogic 2 and so forth If Target Enabled is selected you can illuminate the front target LED on operation of T PRO User Manual 8700 5 Offliner Settings Software this function The operation of the ProLogic statements are logged on the events listing ProLogic statements are shown on the view fault records In the example ProLogic illustrates a lockout condition Operation of device 87 receipt of fast gas operation operation of device 87N or 81 1 results ina lockout trip where an output contact is held closed until a lockout reset input is received This lockout reset guantity could be an external input or another
194. ts r Software Setting Setting Name Detaut Settings Date Created Modified 1999 03 22 11 50 00 r Station Station Name Station Name Station Number 1 Location Location Bank Name TES T PRO Offliger Settings v8 Setting Tree Setting Area Figure 5 1 Opening Screen Use the Offliner Settings software to create relay settings on a PC Offliner Set tings provides an easy way to view and manipulate settings Hardware The minimum hardware reguirements are I GHz processor 2GBRAM 20 GB available hard disk space USB port Serial communication port Operating System The following software must be installed and functional prior to installing the applications Microsoft Windows XP Professional Service Pack 3 or Microsoft Windows 7 Professional Service Pack 1 32 bit or 64 bit T PRO User Manual 8700 5 1 5 Offliner Settings Software Installing PC Software Insert the CD ROM in your drive The CD ROM should open automatically Ifthe CD ROM does not open automatically go to Windows Explorer and find the CD ROM usually on D drive Open the T PRO exe file to launch the CD ROM To install the software on your computer click the desired item on the screen The installation program launches automatically Installation may take a few minutes to start To view the T PRO User Manual you must have Adobe Acrobat on your com puter If you need a copy download a c
195. tting that you wish to change The summary is a quick way to view all the settings in a compact form The top part of the settings summary contains all the information from the Re lay Identification screen The setting summary provides a list of all the current and voltage analog input guantity names used for protection and recording External Inputs and Output contact names are also identified on this summary T PRO Settings Summary Name Symbol Value Unit Range Relay Identification Settings Version 6 Ignore Serial Number No Serial Number TPRO 8700 980130 06 Unit ID UnitID Nominal CT Secondary Current 5A Nominal System Frequency 60 Hz Comments Comments Setting Name Default Settings Date Created Modified 1999 03 22 11 50 00 Station Name Station Name Station Number 1 Location Location Bank Name TB3 Analog Input Names VA Voltage A VB Voltage B vc Voltage C lA1 lA1 IB1 IB1 IC1 IC1 IA2 lA2 IB2 IB2 IC2 IC2 lA3 lA3 IB3 IB3 T PRO User Manual 8700 Appendix B 1 Appendix B IED Settings and Ranges Appendix B 2 T PRO Settings Summary Name Symbol Value Unit Range EEEa E S A IC3 IC3 IA4 1A4 IB4 IB4 IC4 IC4 lA5 lA5 IB5 IB5 IC5 IC5 Temp1 DC1 Temp2 DC2 External I
196. tude 16 A 1 2 Nomina I2a Angle 17 Degrees 10 0 5 Degrees I2b Magnitude 18 A 1 2 Nomina I2b Angle 19 Degrees 10 0 5 Degrees I2c Magnitude 20 A 1 2 Nomina I2c Angle 21 Degrees 10 0 5 Degrees I3a Magnitude 22 A 1 2 Nomina I3a Angle 23 Degrees 10 0 5 Degrees 13b Magnitude 24 A 1 2 Nomina I3b Angle 25 Degrees 10 0 5 Degrees I3c Magnitude 26 A 1 2 Nomina I3c Angle 27 Degrees 10 0 5 Degrees 14a Magnitude 28 A 1 2 Nomina 14a Angle 29 Degrees 10 0 5 Degrees 14b Magnitude 30 A 1 2 Nomina 14b Angle 31 Degrees 10 0 5 Degrees 14c Magnitude 32 A 1 2 Nomina 14c Angle 33 Degrees 10 0 5 Degrees 15a Magnitude 34 A 1 2 Nomina I5a Angle 35 Degrees 10 0 5 Degrees 15b Magnitude 36 A 1 2 Nomina 15b Angle 37 Degrees 10 0 5 Degrees 15c Magnitude 38 A 1 2 Nomina 15c Angle 39 Degrees 10 0 5 Degrees HVa Current Magnitude 40 A 1 2 Nomina HVa Current Angle 41 Degrees 10 0 5 Degrees HVb Current Magnitude 42 A 1 2 Nomina HVb Current Angle 43 Degrees 10 0 5 Degrees HVc Current Magnitude 44 A 1 2 Nomina HVc Current Angle 45 Degrees 10 0 5 Degrees LVa Current Magnitude 46 A 1 2 Nomina LVa Current Angle 47 Degrees 10 0 5 Degrees LVb Current Magnitude 48 A 1 2 Nomina LVb Current Angle 49 Degrees 10 0 5 Degrees LVc Current Magnitude 50 A 1 2 Nomina LVc Current Angle 51 Degrees 10 0 5 Degrees TVa Current Magnitude 52 A 1 2 Nomina TVa Current Angle 53 Degrees 10 0 5 Degrees TVb Current Magnitude 54 A 1 2 Nomina TVb Current Angle 55 Degrees 10 0 5 Degrees
197. u IR Ibase 4 The settings depend on the value of the neutral grounding resistor if used and assumptions regarding CT saturation 87N Neutral Differential Setting Ranges HV LV TV Enable disable lOmin pu 0 1 to 1 0 pu IRs pu not settable 2x MVA rating S1 6 40 S2 20 200 CT Turns Ratio 1 00 to 10000 00 Note 87N auto is available for autotransformer application For this ap plication the HV side and the LV side CTs have the 3Io quantity calcu lated and the neutral CT is connected to Input 5 In this way the 3lo is compared from the three sources 87N Delta Phase Supervision Like the 87 differential protection the 87N neutral differential also is supervised by a delta phase function Because the 87N protection only uses the 3IO current from the phase and neutral CTs delta phase uses the same 3IO currents for the phase angle comparison The delta phase principle of operation is one that compares the zero se guence current as seen by the phase CTs on one winding side of the transformer with the neutral current through the neutral connection This comparison can be made on the HV LV and TV sides of the transform er Obviously if a transformer winging is in a delta configuration or if the phase CTs on that winding are in a delta configuration the 87N can not be applied to that winding In addition for the case of an auto trans former an 87N setting option can be chose
198. ugh a telephone link between the relay and your computer Connect the serial port on the external modem to Port 2 on the relay s back panel Both devices are configured as RS 232 DCE devices with female con nectors so the cable between the relay and the modem reguires a crossover and a gender change Alternatively you can use the ERLPhase modem port adapter provided with the relay to make Port 2 appear the same as a PC s serial port A standard modem to PC serial cable can then be used to connect the modem and the relay For pin out details see Communication Port Details on page 2 9 Connect the modem to an analog telephone line or switch using a standard RJ 11 connector You must appropriately configure the relay s Port 2 to work with a modem Log into the relay through a direct serial link go to the Utilities Setup Ports screen and set Port 2 Modem option to Yes Set the Baud Rate as high as pos sible most modems handle 57 600 bps The nitialize setting allows you to set the control codes sent to the modem at the start of each connection session The factory defaults are MOSO 0 amp B1 for an external modem and MO0S0 0 for an internal modem T PRO User Manual 8700 2 3 2 Setup and Communications Modem Link Internal Network Link 2 4 Analog Analog Port 5 RJ 11 modem Telephone Telephone B Line Line Desktop Computer Figure 2 3 Internal Modem Link You can access the relay s user i
199. ulation in Appendix M to change the 30 C pickup level The alarm function of 51HV indicates when the pickup threshold has been ex ceeded When the ambient temperature input probe is connected you can use the adap tive overcurrent function Set the rate of loss of life value to 1 0 The pickup values can be affected over the range 0 lt pickup lt 2 15 per unit No change in the overcurrent characteristic takes place above 2 15x pickup Since most fault coordination with other overcurrent relays occurs at fault levels above this val ue coordination is not usually affected by the adaptive nature of the 51ADP function However check all specific applications If the ambient temperature input goes out of range with the adaptive function armed an alarm is generated The event is logged and the overcurrent pickup reverts to the user setting provided for the 51HV T PRO provides overcurrent protection for up to three neutral connected trans former windings using an analog current input set number 5 To apply these de vices connect I5 A current to HV side transformer neutral current ISB to LV side transformer neutral CT and ISC to TV side transformer neutral If only one function is used e g 50N 51 N HV connections to analog inputs ISB and ISC are not used and can not be used as inputs for the differential protection but these inputs can be used for fault recording from a CT source Neutral Over current is similar to 50 51 except that
200. urves on page 4 16 Pickup pu 0 05 to 1 95 TMS 0 01 to 10 00 A 0 001 to 1000 0 B 0 00 to 10 00 p 0 01 to 10 00 TR seconds 0 10 to 100 00 Alpha degrees 179 9 0 to 180 0 Beta degrees 0 1 to 360 0 4 24 T PRO User Manual 8700 D01386R04 20 THD Alarm D01386R04 20 4 Protection Functions and Specifications Ifa THD Hb gt THD Ps He THD L 2a THD gt I2b THD Ps I2c THD I3a THD gt 40 0 I3b THD Max Ps na an L THD Alarm I3c THD Ps 10 0 l4a THD l4b THD Ps 140 THD Ps I5a THD Ps I5b THD I5c gt THD gt Figure 4 14 Total Harmonic Distortion Function The THD Alarm function alerts you to the degree of current waveform distor tion and therefore harmonic content Setting this value at 1096 means that the THD function operates if the total har monic distortion exceeds 1096 in any of the fundamental protection currents THD square root of the sum of the squares of the harmonics 2nd 25th di vided by the fundamental times 100 for THD value THD is defined as 25 P n THD 2 x 100 h Where I is the fundamental component I to 175 are the harmonics components The inputs to this function are the THD values of all the current input channels that are connected to the transformer The channels tha
201. with Relative Time Configurable Sends Unsolicited Response x Never Configurable Only certain objects T PRO User Manual 8700 Sends Static Data in Unsolicited Responses x Never _ When Device Restarts _ When Status Flags Change Sometimes No other options are permitted Appendix F 1 Appendix F DNP3 Communication Protocol Implementation _ ENABLE DISABLE UNSOLICITED Function codes supported Default Counter Object Variation x No Counter Reported Configurable Default Object Default Variation Point by point list attached Counters Roll Over at x No Counters Reported Configurable _ 16 Bits _ 32 Bits _ Other Value Point by point list attached Table Object Request Response KE Function e Qualifier Codes Grp VAR Description Code Qualifier Codes hex Function Code hex 1 0 Binary Input All Variations 1 read 0x00 0x01 0x06 0x07 129 response 0x00 0x08 0x17 0x28 1 1 Binary Input default 1 read 0x00 0x01 0x06 0x07 129 response 0x00 0x08 0x17 0x28 1 2 Binary Input with Status 1 read 0x00 0x01 0x06 0x07 129 response 0x00 0x08 0x17 0x28 2 0 Binary Input Change All Variations 1 read 0x06 0x07 0x08 129 response 0x17 2 1 Binary Input Change without Time 1 read 0x06 0x07 0x08 129 response 0x17 2 2 Binary Input Change wit
202. x G Mechanical Drawings G 1 Appendix H Rear Panel Drawings H 1 Appendix AC Schematic Drawing l 1 Appendix J DC Schematic Drawing J 1 Appendix K Function Logic Diagram K 1 Appendix L Analog Phase Shift Table L 1 Appendix M Loss of Life of Solid Insulation M 1 Appendix N Top Oil and Hot Spot Temperature Gala ANO s SR lks N 1 Appendix O Temperature Probe Connections O 1 efe LED ETE Lr EET reU iv T PRO 8700 User Manual D01386R04 20 Using This Guide This User Manual describes the installation and operation of the T PRO trans former protection relay It is intended to support the first time user and clarify the details of the eguipment The manual uses a number of conventions to denote special information Example Describes Start gt Settings gt Control Panel Choose the Control Panel submenu in the Set tings submenu on the Start menu Right click Click the right mouse button Recordings Menu items and tabs are shown in italics service User input or keystrokes are shown in bold Text boxes similar to this one Relate important notes and information Indicates more screens p Indicates further drop down menu click to dis play list Wi Indicates a warning D01386R04 20 T PRO Use
203. xternal faults by providing extra securi ty to the differential function In operation delta phase compares the phase an gle of the HV LV and TV currents to determine which currents are a fixed an gle of 90 degrees of each other If all currents are within 90 degrees or less of each other this is recognized as the condition necessary for an internal fault If one or more the currents are greater than 90 degrees of one another this is rec ognized as an external fault Extensive simulation and testing has shown that even with CT current distortion issues the phase angle of the currents is main tained and can be used to verify external or internal faults for details see Figure 4 3 Delta Phase Supervision of T PRO 87T Slope Characteristic on page 4 7 4 6 T PRO User Manual 8700 D01386R04 20 4 Protection Functions and Specifications External Fault Internal Fault nv liv Lv l Tv External Iv Internal Fault Fault ILv Angle gt 90 degrees Angle lt 90 degrees lHv Irv Phase angles between currents Phase angles between currents Greater than 90 degrees delta Less than 90 degrees delta Phase BLOCKS differential trip Phase ALLOWS differential trip Figure 4 3 Delta Phase Supervision of T PRO 87T Slope Characteristic The overall logic function of the differential 87 function can be seen in Dif ferential 87 Differential Logic on page 4 7 High HIGH CURRENT TRIP CURRENT TRIP SLOPE Characterist

T-PRO 8700 Manual - ERLPhase Power Technologies Ltd.

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