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USER MANUAL - seb barlassina
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1. Ss uu uu 0000 Sud INIL Sud WLVGd Sud 1011 ELY LLY 4 4 2999 d L d 4 d 1 2999 d on on on on gt gt u gt gt 22H gt gt 2TH SYALNNOD OLY 64 ZH 9 SY va LH Peeeeeee 8a Ss uu uu AA ZOIG AA uon 22 2 ANIL TH Ta Ta on 1841 glo cio LLO olo 60 A A V AAA S MM MM fA Peeeeeee XXX X O un HI IN SIG LOL L TA AVISNH TH KKKKKKKK Ta SLNSAU 80 10 90 so vO 0 co LO A 6 2200 oXXX Uf XX X A WAKA KA SALWLS XXX X 0f 151584 I A ONY ZH 0S un Xxx x un ZH OS dI dI quas Va 8d 14 9d Sd vd d ld MM 29010 SOLWLS MM 5Id TOIA TWLIOIG ZN LN ZA SOLVIS u IH SAVITHA 2 LN sniejs snjeqs snjejs snjejs snjejs SOLVLS SOLWLS 5 on on gt gt 22H gt Tu TOHSHYHL TIVNOIS SHUNSVAN 91 v1 l c1 V1 2 Sunol UJOJ J 17 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 3 Address and time figure 1 B1 RELAY
2. A1 UHRAN Alternative FAIL TRIP RESIST displays eeeeeeee Rl lt 1 B2 B3 B4 B5 B6 B7 UHRAN PROTOCOL BAUDRATE NR RELAY SER NR SW REV dd mm yy YYYYYYYY nnnn XXX 22222222 22 22 hh mm ss C1 FUNCTION Selectionable 100 95 100 95 1003 95 SET UP NOMINAL Nominal data VALUE Fig 2 THRESHOL THRESHOLD set up SET UP Fig 2 RELAYS OUTPUT RELAYS set up FUNCTION Fig 2 DIGITAL DIGITAL INPUTS set up INPUT Fig 2 J1 CONFIRM PROG MEASURES SIGNAL SIGNALS and RELAYS status amp EVENTS STATUS Fig 3 EVENTS Display of EVENTS data Fig 3 COUNTERS Display of COUNTERS data Fig 3 Figure 1 15 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi 2 eunDi J 90ud WHIANOO Lr XXXXXXXX XXXXXXXX XXXXXXXX L dNI 9IG 29 2914 I9IQ TWLIOIC M 23 Ly 999 WHON va 999 WAON u 999 WHON ca
3. 222 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX NOILONOAA IW 15441 DH on on os lt n Ta H TA don Ta bga Ta gt I Ta Ta SAVIHI OLH 6H 8H ZH 9H SH H cH LH 99999999 5 uu uu 5 ZZ 2Z A on VI on VI IL on on on 090252929 5 uu uu 8 22 22 A xxx DD on VI on VI dIGNI IL on on on 99 99 9 co A XXXX un 0170 0s n 99 2 0Ss n ZH 0840 001 589 63 84 14 S uu uu S 22722 A uN AAAA gt gt 22 gt gt I VL gt gt U VL dIGNI IL gt N gt N 001 589 94 SA vd d 24 bd 99999999 S uu uu S 220227 O 20020 gt 29 20H WL gt VI IL gt 001 5899 02000200 s uu uu 5 22722 20020 gt 99 d0 LAS gt I VL IH VL IL gt Tu 001 589 TOHSHYHL 99 vA 3 ba 22 O22 2zz V XXX A A A XXX SHO TWA LSVYLNOO AWIdSId dWO2 SWH 09 9NY I A Sada ur Nl 2UI un uon un TWNIWON dQ LHS za 901 a za L gunoid WOJY 16 DISPLAY AND PROGRAMMING SEB Divisione Elettronica e Sistemi ni
4. V y yyy Un UR 12 5 Hz measured voltage UR 50 Hz 50 Hz measured voltage ANG V I angle between the 12 5 Hz current and 12 5 Hz voltage P7 P8 RESIST Uo X XX yyyyyy V RESIST stator to earth measured resistance Uo measured 50 Hz residual voltage only for 64S 95 function 30 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING When the 12 5 Hz voltage is lower then a minimum value and therefore the 12 5 Hz current will be too small to guarantee a good measurement the angle between the voltage and the current ANG V I the IR current and the RESIST value will be presented as below RESIST When the resistance is greater than 20 kQ it will displayed the following RESIST 220000 Q 5 10 Events figure 3 On the display are shown the memorized information related to the last 8 TRIP or STATUS events The 8 events are recorded and identified with a progressive number from 1 to 8 the more recent event shows a lower number Q1 EVENT NUMBER El cccccccc The index E1 E2 E8 identifies the memorized event The parameter cccccccc gives information on the kind of event and it can show one of the following values NONE no event memorized R1 event on trip threshold R1 R2 event on trip threshold R2 R event on trip threshold R Uo event on trip threshold Uo Uo event on trip threshold Uo gt gt STATUS information recorded on external command P
5. 22 9 Figure B Insertion on residual voltage TV 1 1 1 GHS module The GHS module and the coupling circuits are installed e inthe neutral point cabinet for generator equipped with earthing transformer SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS e inthe protection cabinet for injection through open delta VT In figure A it is presented the insertion of the GHS module for injection through the earthing transformer The value of the R L and C components and the possible CT characteristics are defined as function of the electrical characteristics and earth fault current of the installation The GHS module requires an auxiliary power supply 24 vdc 20 A the auxiliary power can be supplied from an external power supply The auxiliary power of the GHS module and the 12 5 Hz signal generation enabling can be remotely controlled WARNING the 12 5 Hz signal used for the 64S 100 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the primary circuits of the voltage transformer even at generator standstill 1 2 95 Stator earth fault operation The UHRAN protection relay measures the fundamental components of the generator residual voltage the presence of a voltage higher than the programmed threshold is due to an earth fault of the stator winding The relay can protect only 95 of the stator winding from the generator terminals The thresh
6. The resistive components of currents with phase angle from the 12 5 Hz voltage higher than 90 a negative sign will be associated presented with negative sign on the front display and they will not be considered for the minimum resistance thresholds When the 12 5 Hz signal in injected through earthing transformer the IR current is measured using a current transformer as in presence of earth fault close to the generator terminals the current which will appear on the secondary winding of the earthing transformer could reach quite high values as function of the earth resistance on the low voltage side of the earthing transformer and of the transformer ratio It is available a programmable angle compensation ANG CO of the angle error related to the current transformer or due to the earthing transformer the programmed value ANG CO will be algebraically added to the angle of the current vector see paragraph 5 5 ref D7 It is available a programmable compensation of the measured resistance RES COMP to compensate the resistance due to the parasitic parameters of the earthing transformer normally equivalent to a resistance parallel connected to the earth resistance of the generator stator circuits see paragraph 5 5 ref D8 It is also available a 50 Hz residual overvoltage programmable threshold U 50Hz to disable the 100 stator earth fault protection operation when an high value of 50 Hz voltage signal in detected on the same trans
7. 300 9600 baud selectable fibre optic module 24 320 20 48 230 Vac 20 47 63 Hz 5 10W 10 60 C 25 80 C lt 95 IP 52 IP 54 2 5 kg Note 1 additional relay R5 is controlled by self test program Note 2 Breaking capability at 110 Vdc L R 40 ms 100 000 operations Note 3 The output contacts of R3 and R4 relays can be configured as signaling or tripping relays SEB Divisione Elettronica e Sistemi TABLES 8 TABLES TableA Settings Uo 0 01 1 60 Uon 0 01 Uon Minimum resistance thresholds 500 20000 Q 100 Q 50 Hz voltage inhibition threshold 0 01 1 00 Un 0 01 Un Measuring resistance RES V I 50 00 999 99 Q 0 010 64S 100 Compensation angle ANG CO 60 60 1 Compensation resistance RES CO 1000 999999 10 Undervoltage threshold U 0 004 0 050 Un 0 001 Un R lt lt Trip R lt lt if l gt IS Inhibition ANSI 64S 100 if 1 lt IS Thresholds R1 R2 R 0 50 99 99 s Definite delay Thresholds Uo Uo gt gt 0 10 99 99 s All thresholds Additional delay 0 00 99 99 s Drop off ratio gt 0 95 or lt 1 05 Programmable for each threshold START TRIP and Output relays R1 R2 R3 R4 normally ON OFF Burden referred to rated value 0 3 VA 41 42 43 44 SEB DIVISIONE ELETTRONICA E SISTEMI UFFICIO COMMERCIALE Via Segantini 5 20825 BARLASSINA MB tel 39 0362 5669 1 fax 39 0362 556622 web www seb barlassina it
8. FUNCTION SELECTION e Measured parameters the display shows one of the measured or computed parameters If the parameter programmed to be visualized will be not measured as function of the selection at ref C1 no parameters will be displayed ON TRIP CONDITION When a trip condition occurs the protection relay visualizes the TRIP message that includes the threshold related to the trip the displayed messages are as the following TRIP TRIP TRIP TRIP R1 R2 R Uo The information of the trip as well the glowing of the related LED s is displayed until the RESET push button is pressed If a new trip condition occurs the displayed information will be updated information related to previous trips are recorded in EVENTS memory FAULT CONDITION When a permanent or temporary fault condition is detected by the self diagnosis module the following message is displayed FAIL F PILOT Detected fault condition on pilot wire the function related to DIG1 digital input is suspended Corrective action verify pilot wire short or open circuit The string eeeeeeee can be HARDWARE Detected fault condition on hardware or software resources of the protection relay all functions are suspended 14 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Corrective action replace the protection relay and contact SEB post sales service 5 2 Visualization structure
9. To integrate the protection relay in control systems the documentation related to the protocol is freely available on request 38 SEB Divisione Elettronica e Sistemi INSTALLATION 120 Ohm 120 Ohm 1 CONTROLLORE PROTEZ 1 PROTEZ 2 PROTEZ 3 It is suggested to terminate the serial line with a resistance 120 O 1 4 W 39 SEB Divisione Elettronica e Sistemi TECHNICAL CHARACTERISTICS 7 TECHNICAL CHARACTERISTICS Measuring inputs ANSI 64S 9594 Rated voltage Un programmable Thermal withstand continuously Thermal withstand for 1 s Rated frequency Primary VT s voltage Output contacts ratings Number of relays note 1 Rated current Rated voltage Contact configuration Breaking capability note 2 tripping relays R1 R2 signaling relays R3 R4 R5 note 3 Mechanical life Digital inputs Number of inputs External control voltage Typical current sink Data transmission Standard Communication protocol Transmission speed Optional Auxiliary supply Range Frequency Vac Burdens min max Environmental conditions Operation Transport and storage Relative humidity without condensation Protection degree for flush mounting optional Weight 57 73 63 50 72 16 100 110 V 125 190 220 230 380 400 V 2 Un 2 Un 50 60Hz 1 999999 V 4 1 5A 250 V change over 0 5A 0 2A gt 108 3 as Uaux 2mA RS485 half duplex MOD BUS ASCII
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11. these relays can be programmed to be activated on START or TRIP conditions of one or more thresholds START instantaneous activation of the output relay when at least one of the measured current or parameter exceeds the programmed threshold value TRIP activation of the output relay when the programmed time delay or TI TA related to a threshold expires The quiescent state of each single relay R1 R2 R3 and R4 can be programmed as normally energized ON or normally de energized OFF SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS An additional relay R5 normally energized is controlled by the self diagnosis routines to report detected fault conditions Related to each threshold partial and total counters of TRIP conditions are available DIGITAL INPUTS there are available 3 digital inputs to activate the following functions when enabled by the programmed set up e additional time delay related to one or more thresholds e on off thresholds e STATUS function recording of measures on external event e pilot wire fault monitoring For each digital input can be programmed the condition that activates the related functions HI voltage gt 20 V dc ac LO voltage 0 10 V dc ac The digital input acquisition is valid when the voltage value stays in the range HI or LO for at least 40 ms DISPLAY OF MEASURES the user can select the continuous display one of the measured or computed paramete
12. Dima montaggio da incasso Flush mounting panel cut out Montaggio incassato Flush mounting Dimensioni pannello frontale trasparente Transparent front panel sizes 208 x 89 5 mm 37 SEB Divisione Elettronica e Sistemi INSTALLATION 6 3 Relays R3 and R4 Signaling Command set up The protection relay is supplied with R3 and R4 relays configured as SIGNALING RELAYS with 2 change over output contacts with breaking capability equals to 0 2 A at 110 Vdc L R 40 ms 100000 operations Each R3 and R4 relay can be configured as COMMAND RELAY with 1 change over output contact with breaking capability equals to 0 5 A at 110 Vdc L R 40 ms 100000 operations The new configuration is obtained with the following cabling 6 4 RS485 serial communication port The digital protection relay UHR4N presents an insulated serial interface RS485 half duplex that allow the multi drop connection up to 31 protection units There are available 2 selectable communication protocols ref B2 paragraph 5 3 When the STANDARD SEB communication protocol is selected the transmission speed is automatically selected between 300 to 9600 bauds and the protocol is ASCII HEX When the MODBUS communication protocol is selected the transmission speed can be programmed between 300 to 9600 bauds ref B3 par 5 3 It is suggested to use a shielded twisted pair AWG22 terminal 19 not connected internally can be used for shields connections
13. Sed DIVISIONE ELETTRONICA E SISTEMI UHRAN DIGITAL MULTIFUNCTION PROTECTION RELAY 100 AND 95 GENERATOR STATOR EARTH FAULT USER MANUAL P500D824 September 2004 SEB Divisione Elettronica e Sistemi INDEX INDEX 1 GENERALGHARAGTERISTIGS tenista cte em tent eco est getan comte 1 1 1 100 Stator earth fault iaia 3 1 1 1 GHS 00118424 224552254 8 258828 58 ats lat atin tata oe tet ht 7 1 2 95 Stator earth fault operation rt tttennnnnnn rnn enrennnnn nnna 8 2 PANEL KEY nie es 9 3 FRONT PANEL LED SIGNALLING 10 4 PROGRAMMING AND TEST 0 11 4 1 How to program the protection relaYy 11 4 2 Howto modify a visualized parameter 12 43 12 AAY pesbter outpubTeldys eoe toto tunt o Aes 13 5 DISPLAY AND PROGRAMMING eene 14 Dil Standard display aeneon oto oet ete eta ete detect 14 5 2 Visualization SUUCIUFO sro aos 15 5 3 Address and time figure 1 2 18 5 4 Function selection 22 2 45 2 22242 42 5224242 52242 1 425242 42241 244254242444242 2442 2 222 19 5 5 Nominal values set up flgure2 cone eee 19 5 6 Threshol
14. THRESHOLD U gt 50 SET UP programmable F8 F9 U gt 50Hz U gt 50Hz O nn Un XXXXX V 0 nn threshold level expressed as Un programmable XXXXXXXX threshold value expressed as primary voltage not programmable The available settings of the threshold are listed in Table A 5 6 3 Residual overvoltage thresholds 64S 95 The information and set up related to threshold Uo in the following points are effective for the threshold Uo gt gt just taking into consideration the change of the threshold identification G1 ON OFF THRESHOLD programmable Uo ee Uo gt threshold identification Uo gt Uo gt gt cc ON enabled threshold OFF disabled threshold available but not active G2 G3 VOLTAGE THRESHOLD programmable G2 G3 Uo Uo n nn Un XXXXXX V 25 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING n nn threshold level expressed as Un programmable XXXXXXXX threshold value expressed as primary voltage not programmable The available settings of the threshold are listed in Table A G4 TIME DELAY SET UP programmable TI INDIP XX XX S Set up of time delay to the activation TRIP of the programmed output relays when the measured resistance exceeds the threshold level XX XX time delay value programmable from 00 02 to 99 99 seconds Example TI INDIP 02 50 s G5 ADDITIONAL TIME DELAY SET UP programmable TA Uo XX XX S The additional time delay TA is programmable f
15. programmable In prim XXX A Primary phase current value of the CT installed on the secondary of the earthing transformer the value is programmable from 1 to 100 A resolution 1 A If the CT is not installed please select In prim 1 A D6 RESISTANCE FOR 12 5 Hz MEASUREMENT programmable RES V I xxx xx Value of the resistance R please refer to figure A used for the measurement of the 12 5 Hz voltage the value is programmable from 50 00 to 999 99 resolution 0 01 Q For the best definition of the value to be programmed it is necessary made the measurement of the total resistance of the circuit where the resistance R is connected in order to take into consideration the cabling resistance the measured value represents the value to be programmed D7 COMPENSATION ANGLE ANG CO programmable ANG CO xx Value of the compensation angle see paragraph 1 1 to compensate the angle error introduced by the earthing transformer or open delta transformer and by the current transformer the value is programmable from 0 to 60 resolution 1 20 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING For the best definition of the compensation angle value to be programmed it is necessary made some measurements with the earthing transformer or the open delta transformer disconnected from the installation and connected on some resistors For these measurements please contact the SEB Barlassina Ita
16. to identify faults on pilot wire The fault condition is reported as detected by the self diagnosis module but the protection functions are not suspended only the functions related to DIG1 digital input are suspended as the DIG1 status cannot be longer considered as true The fault condition is reported when DIG1 and DIG2 signals are not complementary for more then 100 ms REMOTE COMMUNICATION the opto insulated serial port RS485 can communicate with a personal computer or a remote control and monitoring system equipped with an RS485 interface or with a standard RS485 RS232 converter It is possible to select the communication standard between STANDARD ASCII 7 bit Seb protocol or MODBUS ASCII mode SLAVE All the set up and measured parameters can be transmitted on the RS485 communication serial port when communication is active LED REMOTE glows the operator on front panel can visualize the relay set up but changes of parameters are disabled ENTER and buttons disabled 1 1 100 Stator earth fault operation The UHRAN relay performs the function of 10096 stator earth fault using the 12 5 Hz voltage injection principle on the stator windings The 12 5 Hz signal is generated by the GHS module and injected on the generator stator windings through a coupling circuit connected to the generator earthing transformer or to the open delta voltage transformer on generator busbar WARNING the 12 5 Hz signal used for the 64S 1
17. MODEL not programmable UHR4N B2 B3 COMMUNICATION PROTOCOL programmable B2 PROTOCOL XXXXXXXX The communication protocol is programmable between the followings STANDARD ASCII SEB protocol MODBUS Modbus protocol SLAVE When the MODBUS protocol is selected the following display is showed to allow the selection of the transmission speed B3 BAUDRATE XXXX The xxxx parameter is selectable between the followings 300 600 1200 2400 4800 9600 When the STANDARD protocol is selected the baud rate is automatically selected by the protection relay B4 ADDRESS programmable NR RELAY 001 Programmable address from 001 to 255 The number is used on RS485 port to address a specific relay when two or more protection relays are linked on the same serial line B5 RELAY SERIAL NUMBER not programmable SER NR 0012345 B6 SOFTWARE REVISION LEVEL not programmable SW REV ZZ ZZ SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING B7 TIME DATE programmable dd mm yy hh mm ss Time and date are programmable and they are used to mark recorded events NOTE the clock is not provided with back up battery therefore a loss of auxiliary supply will force time date to the following condition 01 01 90 00 00 00 5 4 Function selection figure1 C1 PROTECTION FUNCTION SELECTION programmable FUNCTION XXXXXXXX The functions performed by the protection relay are programmable between the fol
18. current flowing to ground in presence of 400 ohm earth fault resistance In the second case it is possible to program an output relay to signal the condition possible loss of auxiliary supply of the GHS module When the generator is operative the 100 function will normally protect 20 of the stator windings from the neutral point against earth faults The remaining part of the stator windings will be protected by the 95 stator earth fault function The protection relay is operative at generator standstill in this case the protection function covers 100 of the stator windings WARNING the 12 5 Hz signal used for the 64S 100 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the primary circuits of the voltage transformer even at generator standstill SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS R S T 12 4 8 eps eee R1 en 0 380 12 232599 U1 R2 lt 47 g R3 csi wem RA H24 x LIP Power supply Fail Figure A Earthing transformer insertion SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS R S T 12 4 8 R1 11 0 380V ca 12 1 U1 R2 Uaux lt 48 R3 Io R5 TEST e DIG 1 SE EIA lt 3 LINE H LDO R NO C BE 23 S _ _ T _ 4 Power supply LINE L 2058
19. on electrical plants The output relays are activated with the following sequence 1 SELECT THE VISUALIZATION of the desired output relay to be tested TEST R1 OFF 2 PRESS ENTER to activate the test session the message OFF will start to blink 3 PRESS and the message on the display will change as TEST R1 ON 4 PRESS ENTER to command the instantaneous trip of the output relay change of the current status The relay will stay on the new condition until e the or RESET push button is pressed e the ENTER push button is pressed and the sequence at points 3 and 4 is repeated presenting OFF condition The same procedure will be used for R2 R3 and R4 relays 13 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 DISPLAY AND PROGRAMMING The contents and the structure of the displayed messages are shown in figures from 1 to 3 the references A1 B1 B2 etc identify specific displayed messages in the figures 51 Standard display A1 STANDARD DISPLAY It is the standard displayed message without operator s intervention no push buttons pressed for at least 5 minutes or when the RESET push button has been pressed The displayed information is function of the protection relay status NORMAL FUNCTIONING During this state the following information can be visualized as defined by set up e Protection function ANSI code the display shows the ANSI codes of the enabled functions ref C1
20. 00 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the generator terminals even at generator standstill When a stator earth fault occurs the equivalent zero sequence impedance of the generator stator windings normally capacitive only will also present a resistive component the UHRAN protection relay measures the resistive component of the zero sequence current IR in phase with the injected voltage to detect the fault condition without influences due to stator capacities From the measurement of the resistive component IR of the 12 5 Hz measured current IB and from the measured 12 5 Hz voltage the protection relay computes the zero sequence resistance of the generator stator circuits The resistance value is referred to the primary circuit of the earthing transformer or to the primary circuits of the voltage transformer and it represents the value of the resistance to earth of the generator stator circuits SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS The resistance measurement is performed only if the current vector IB presents a phase angle from the 12 5 Hz voltage lower than 90 this allows to measure only the resistive component of the current generated by the GHS injection module and to avoid the measurement of currents related to 12 5 Hz harmonics on the generator circuits e g due to frequency static converters for gas turbine start up
21. 4S 100 cc R lt lt R lt lt threshold identification cc ON enabled threshold OFF disabled threshold available but not active This threshold will not be active when the 12 5 Hz measured voltage is higher than U lt threshold see ref F2 If the measured 12 5 Hz voltage is lower than U lt only the module of the measured current will be taken into consideration referred to the primary circuit and e current module 2 IS trip threshold R lt lt if the threshold is programmed ON e current module lt IS ANSI 64S 100 function inhibition loss of injection signal where IS is the current flowing to ground in presence of 400 Ohm earth fault resistance 23 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING F2 VOLTAGE THRESHOLD U lt programmable F2 F3 U lt U lt 0 nnn Un XXXXXX V 0 nnn threshold level expressed as Un programmable XXXXXXXX threshold value expressed as primary voltage not programmable The available settings of the threshold are listed in Table A F4 TIME DELAY SET UP programmable TI INDIP XX XX S Set up of time delay to the activation TRIP of the programmed output relays when the measured resistance exceeds the threshold level XX XX time delay value programmable from 00 02 to 99 99 seconds Example TI INDIP 02 50 s F5 ADDITIONAL TIME DELAY SET UP programmable TA R XX XX S The additional time delay TA is programmable from 00 00 to 99 99
22. IFY THE PARAMETER pressing the arrow push buttons and when two parameters are modifiable the push button allows to point out the parameter to be modified the selected parameter will blink when numerical parameters are pointed out the push button allows dice to select the digit to be modified increasing of the parameter a the digits are increased by 1 unit b the other parameters are presented following the selection list 3 PRESS ENTER to end parameter modification session The modification session is ended and the parameter stops to blink NOTE if a numerical parameter is selected out of the accepted range as shown in Table A when the push button ENTER is pressed for few seconds an error message will be displayed as Data Error and the parameter will be displayed again with the former value 4 3 Reset When the push button RESET is pressed the protection relays returns to the standard condition e reset of glowing LED s e drop off of tripped relays 12 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST e reset of any parameter changed but not confirmed parameters are shown as confirmed at the end of the last programming session e display on STANDARD MODE Figure 1 ref A1 par 5 1 4 4 Test of output relays When the output relays test is selected Figure 2 ref H10 it is possible to command an output relay one at the time to trip from the current status allowing functional tests
23. OWER ON switch on of the protection relay auxiliary power For the events NONE and POWER ON no other information is presented for the other events the following displays give more detailed information on the event Q2 PROGRAMMED THRESHOLD This information will not be presented in case of STATUS event For the other thresholds the displayed information will be Thresholds 64S 100 R1 lt R2 R1 6400 Not present in STATUS event 31 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Thresholds 645 100 R Not present in STATUS event Thresholds 645 95 Uo Uo gt gt Uo gt gt Not present in STATUS event Q3 ACTIVATED OUTPUT RELAYS El RELAY nnnnnnn It shows the list of the output relay activated by the threshold trip 1 RELAY E3 RELAY 1374 1 4 When no output relays have been activated no relays programmed to TRIP on the threshold the following message will be displayed El RELAY NONE El T Tot WWW WW S It is shown the total delay to the TRIP of the output relays from the fault detection when additional delays are activated the change of the status of the digital input that controls the additional delay during the delay itself could bring to a total time different from the sum of the programmed delays If the total time is greater than 999 seconds the display of tenths is omitted Examples Q4 TOTAL TIME DELAY ON TRIP When the event is memorized on ex
24. actual status of each threshold is displayed For each threshold are displayed the threshold identification R2 lt Uo gt etc and the threshold status the status can show one of the following values ON active threshold OFF disabled threshold programmed OFF at ref D1 par 5 6 OFF_DIG threshold programmed active but momentary disabled by a digital input actual status ref K1 K2 K3 see par 5 8 Examples 29 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING R1 R2 R Uo gt gt ON OFF ON OFF DIG M1 M2 OUTPUT RELAY STATUS The actual status of each output relay is displayed for each relay the following information is displayed e relay identification R1 R2 R3 R4 e relay status ON activated OFF non activated Note that ON OFF do not necessary mean energized or de energized see ref H1 N1 N2 DIGITAL INPUT STATUS The actual status of each digital input is displayed For each digital input the following information is presented e digital input identification DIG1 DIG2 DIG3 e digital input status HI or LO P1 P8 MEASUREMENT DISPLAY The actual values of the measured parameters are displayed the parameters related to disabled thresholds are not displayed P1 P2 P3 IR IB IB 50 Hz XX XXX y yy A y yy A IR resistive component of the 12 5 Hz measured current IB 12 5 Hz measured current IB 50 Hz 50 Hz measured current P4 P5 P6 UR UR 50 Hz ANG V I
25. allation the proper rack is supplied by SEB e protection relay module UHRAN with rear socket e transparent front panel for rack installation e blister with items 1 2 3 4 5 CS VERSION flush mounting installation e protection relay module UHRAN with rear socket e transparent front panel for rack flush mounting installation e n 2 brackets for flush mounting e blister with items 1 2 3 4 5 e blister with item 6 Sacchetto BLISTER 1 n 8 screws to fix wire terminals of current circuits 2 n 4 screws to fix the relay rear socket on the 19 rack or on the two brackets for flush mounting n 2 screws to fix optionally the protection relay on the front of the 19 rack 3 n 2 knobs to fix the transparent front panel 4 n 8 washers to be used to fix current wire terminals 5 n 8 growers to be used to fix current wire terminals 6 items to fix the brackets for flush mounting only with CS version The knobs to fix the transparent front panel must be screwed through the panel the front panel itself the operation will create a screw thread in the plastic material and the knobs will never be missed 35 SEB Divisione Elettronica e Sistemi INSTALLATION NOTE The items related to current inputs are th
26. d and time delays nella 22 5 6 1 100 stator earth fault figure Z lenti esere ect dgio net 22 5 6 2 Threshold R lt lt and 64S 100 function disabling 23 5 6 3 Residual overvoltage thresholds 645 959 25 57 Output relays programming figure 3 rnrn ennnen 27 5 8 Digital inputs function programming figure 2 28 5 9 Parameter values visualization figure 3 29 5 10 Events Gue S tcx 31 TRIPS COUNTERS fig re 9 ebrei te tx ore tr Eee e t oret Eee 33 SM INSTALLATION cR 35 6 1 3Suppligd Mette na Irae ease cea 35 SS EK 8718 op M 36 63 Relays R3 and R4 Signaling Command 38 6 4 RS485 serial communication port sss 38 7 TECHNICAESCHARAC TERISTICS 202664 44 aci 40 a oc cepe 41 Information printed in this manual subject to change without prior notice This manual must not be reproduced in whole or in part in any form or by any means without the express written permission of SEB Divisione Elettronica e Sistemi SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS 1 GENERAL CHARACTERISTICS The multifunction protection relay UHRAN belongs to SIGMA N digita
27. ducer which is measuring the 12 5 Hz voltage signal In this case the 50 Hz voltage signal is due to the presence of an earth fault close to the generator terminals and the 95 stator earth fault protection relay will have to operate see paragraph 1 2 The output relay R1 R2 R3 and R4 can be programmed to copy the status detected by the digital input DIG3 DIG3 active output relay activated DIG3 not active output relay released this function can be used to disable the operation of the GHS module to avoid the injection of the 12 5 Hz signal when the protection relay is disabled from an external command using digital inputs This functionality can avoid the presence of dangerous voltages on the generator terminals when the generator is at standstill or in general when the 100 stator earth fault protection is disabled Two definite time minimum insulation resistance thresholds are available and programmable in ohm R1 R2 lt The resistance measurement is done when the 12 5 Hz voltage on the stator circuit is greater than the U programmable threshold If the measured voltage is lower than U only the IB current module measurement will be taken into consideration referred to the primary circuit and e current module 2 IS trip threshold R lt lt 4 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS e current module IS ANSI 64S 100 function inhibition loss of injection signal where IS is the
28. e date and time of the last confirmed programming session are not modifiable or resettable the information related to the last programming session are used to control unauthorized access The partial counter can be modified following the standard set up procedure for parameters as described at paragraph 4 2 the partial counters are immediately modified in the memory the recorded values are immediately resetted without the need of the programming confirmation R1 R10 TRIP COUNTERS R1 R2 RI lt R1 P gt T Cee Display of the partial P and total T counters of the TRIP condition related to each threshold 33 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING When the value exceed 9999 the counter starts again from 0000 The counters are identified by the threshold name R1 R2 R Uo Uo gt gt there are presented only the counters related to the active thresholds The partial counters are modifiable in the range from 0000 to 9999 following the standard set up procedure paragraph 4 2 R11 R13 TOTAL PROGRAMMING SESSIONS AND DATE TIME OF THE LAST PROGRAMMING SESSION TOT PRG DATE PRG TIME PRG eeee dd mm yy hh mm ss Display of the number of confirmed programming sessions from the factory set up and the date and time of the last confirmed programming session 34 SEB Divisione Elettronica e Sistemi INSTALLATION 6 INSTALLATION 6 1 Supplied kit RK VERSION 19 rack inst
29. e standard supplied items with all SIGMA N protection relays but for the UHRAN model they are partially used GHS MODULE The GHS module configuration is function of the installation coupling circuit presence of current transformer etc All these components will be installed in the generator earthing cabinet or in the protection cabinet in the last case only for injection through open delta transformer For the evaluation of the above mentioned components please refers to the SEB technical department 6 2 Cabling For the terminal numbers on the rear sockets please refers to next figure Current circuits It is suggested to terminate the current wiring using eyelet terminals Minimum suggested wire cross section 2 5 mm US terminals A1 A2 IS terminals B1 B2 Voltage circuits It is suggested to terminate the voltage wiring using plug terminals Minimum suggested wire cross section 1 5 mm With reference to the insertion diagram the voltage input terminals must be selected as function of the programmed Uon value Uo terminals 16 18 voltages with Uon programmed from 190 to 400 V terminals 17 18 voltages with Uon programmed from 0 to 125 V Other circuits output relays etc It is suggested to terminate the wiring using plug terminals Minimum suggested wire cross section 1 5 mm 36 SEB Divisione Elettronica e Sistemi INSTALLATION 172 9 Dimensioni meccaniche Case outlines N 4 fori 04 6
30. g on the selection at ref C1 ANSI displays of ANSI code RESIST displays the measured resistance 64S 100 IR displays the measured resistive 12 5 Hz current 64S 100 displays the measured 12 5 Hz current 64S 100 UR displays the measured 12 5 Hz voltage 64S 100 Uo displays the measured residual voltage 645 9596 D10 DISPLAY CONTRAST LEVEL programmable CONTRAST LEV x 21 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING The display contrast level is programmable from 0 to 9 The backlighted display is switched off if no push button is pressed for at least 5 minutes when one of the front panel push button is pressed the display is switched on 5 6 Threshold and time delays set up 5 6 1 100 stator earth fault figure 2 The information and set ups related to threshold R1 in the following points are effective for the threshold R2 just taking into consideration the change of the threshold identification E1 ON OFF THRESHOLD programmable 64S 100 Rl lt R1 lt threshold identification R1 lt R2 lt cc ON enabled threshold OFF disabled threshold available but not active E2 THRESHOLD SET UP programmable nnnnn nnnnn threshold value expressed in The available settings of the threshold are listed in Table A Examples R2 R1 8500 Q 15000 Q E3 TIME DELAY SET UP programmable TI INDIP XX XX S Set up of time delay to the ac
31. hanging the relay identification H1 OUTPUT RELAY R1 QUIESCENT STATUS programmable R1 NORM Programming of the R1 relay status when no START or TRIP conditions are activated NORM OFF normally de energized energized status on activation NORM ON normally energized de energized status on activation H2 OUTPUT RELAY ACTIVATION ON THRESHOLD R1 lt programmable R1 R1 XXXXXXXX Programming of the R1 output relay activation START or TRIP on the R1 threshold The parameter xxxxxxxx is selectable as the following START R1 output relay activation on the R1 threshold TRIP R1 output relay activation on the R1 threshold NONE no activation related to the R1 threshold H3 H8 OUTPUT RELAY ACTIVATION ON THRESHOLDS STATUS R2 lt R U R R U gt 50 Uo programmable Examples H4 H5 H7 R1 U lt R R1 R R1 Uo XXXXXXXX XXXXXXXX XXXXXXXX Programming of the R1 output relay activation NONE START TRIP on the thresholds status as threshold R1 at reference H2 The U R identify the possibility to activate an output relay when the measured voltage related to 64S 100 protection function is lower than the threshold U and the measured current is lower than IS see references F2 and F3 H9 OUTPUT RELAY ACTIVATION ON DIGITAL INPUT STATUS programmable R1 RIPET DIG3 zzz 27 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Activation of the R1 output relay func
32. l protection line and it performs functions as generator protection relay against stator earth faults in generator systems the user can select one or more of the functions listed in the table below Stator earth fault 10096 645 100 Stator earth fault 9596 residual overvoltage 64S 95 59N 59Vo All the functions of the relay are fully programmable by the front panel keyboard or through the RS485 serial interface set up and measured parameters can be visualized on the front panel display and transmitted on the RS485 communication serial port WARNING the 12 5 Hz signal used for the 64S 100 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the generator terminals even at generator standstill THRESHOLDS the following thresholds are available e 100 stator earth fault thresholds R1 lt R2 lt R lt lt minimum resistance thresholds e 95 stator earth fault thresholds Uo gt Uo gt gt residual overvoltage The available settings for each threshold are listed in Table A TRIP DELAYS each threshold have a programmable definite time delay for each threshold it is available an additional time delay TA The additional time delay is added to time delay TI and its activation is controlled by the digital inputs The available settings for each timers are listed in Table A OUTPUT RELAYS the UHRAN controls 4 output relays named R1 R2 R3 and R4
33. lowings 100 100 stator earth fault protection only 95 95 stator earth fault protection only 100 95 100 and 95 stator earth fault protections Examples FUNCTION FUNCTION FUNCTION 100 95 100 953 5 5 Nominal values set up figure2 D1 SECONDARY INJECTION NOMINAL VOLTAGE Un programmable Un XXX V Un nominal value of the secondary 12 5 Hz injection voltage secondary voltage of the earthing transformer or secondary voltage of the open delta voltage transformer It represents the nominal value of the transformer winding where the 12 5 Hz voltage will be injected the value is programmable from 100 V to 600 V resolution 1 V D2 NOMINAL RESIDUAL VOLTAGE Uon programmable Uon XXX XX V Uon nominal residual voltage nominal secondary voltage of plant open delta voltage transformer selectable between the followings 19 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 57 73 63 50 72 16 100 110 125 190 220 230 380 400 The Uon selection is not visualized when only the 100 stator earth fault function has been selected at reference C1 D3 PRIMARY VT s RESIDUAL VOLTAGE programmable Un prim XXXXXX V Primary voltage of the installed earthing transformer or of the installed open delta voltage transformer the value is programmable from 000001 to 999999 V D4 NOMINAL CURRENT In not programmable In 1 The value is 1 A fixed D5 PRIMARY NOMINAL CURRENT In
34. ly If no measures are available please program 0 WARNING the 12 5 Hz signal used for the 64S 100 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the primary circuits of the voltage transformer even at generator standstill D8 COMPENSATION RESISTANCE RES COMP programmable RES COMP Value of the compensation resistance see paragraph 1 1 to compensate the parasitic resistance of the earthing transformer or open delta transformer the value is programmable from 1000 to 999999 resolution 1 For the best definition of the compensation resistance value to be programmed it is necessary program RES COMP equals to 999999 and check the resistance measured by the protection relay see paragraph 5 9 ref P7 with the earthing transformer or the open delta transformer disconnected from the installation WARNING the 12 5 Hz signal used for the 64S 100 protection function could be the cause of dangerous voltages on the primary circuits of the earthing transformer or on the primary circuits of the voltage transformer even at generator standstill D9 STANDARD DISPLAY SELECTION programmable DISPLAY It allows to select the standard displayed information ref A1 when no trip condition occurs and no fault condition have been detected by the self diagnosis module the available selections are the following dependin
35. n active on RS485 port trip condition on ANSI 64S 100 thresholds R1 lt and R2 lt trip condition on ANSI 64S 95 thresholds Uo gt and Uo gt gt trip condition on R lt lt threshold The last trip condition threshold indication is also showed on front panel display more information on trip condition are presented in the recorded EVENT see par 5 10 10 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST 4 PROGRAMMING AND TEST The protection relay is easily programmable following the instructions in the next paragraphs e HOW TO PROGRAM THE PROTECTION RELAY e HOW TO MODIFY A VISUALISED PARAMETER All parameters can be freely modified the proper protection set up as required by the plant management is submitted to the operator s judgment 41 Howto program the protection relay The programmable parameters are showed in Figures 1 to 3 at the following references B2 B7 relay protocol address RS485 and date time C1 enabled protection functions D1 D10 nominal values contrast etc E1 E5 thresholds and time delays R1 lt R2 lt F1 F9 thresholds and time delays R lt lt and U gt G1 G5 thresholds and time delays Uo gt Uo gt gt H1 H9 output relays functions K1 digital input functions R1 R10 partial trip counters reset The programming sequence is the following 1 SELECT the visualization on display of the parameter to be modified using the arrow push butto
36. nction related to digital input DIG1 the following functions are selectable only the active threshold are presented NONE no functions active related to digital input DIG1 TA R1 lt additional time delay on the threshold R1 lt TA R2 lt additional time delay on the threshold R2 lt TA R lt lt additional time delay on the threshold R lt lt TA Uo gt additional time delay on the threshold Uo gt TA Uo gt gt additional time delay on the threshold Uo gt gt TA ALL additional time delay on all thresholds OF F100 thresholds R1 R2 lt R lt lt 64S 100 disabled OF F95 thresholds Uo Uo gt gt 64S 95 disabled OF R1 threshold R1 disabled OF R2 threshold R2 disabled OF R threshold R disabled OF threshold Uo disabled OF Uo threshold Uo disabled OF ALL all thresholds disabled STATUS activation of status function see paragraph 1 K2 DIGITAL INPUT DIG2 SET UP programmable DIG2 cc XXXXXXXX Programming of the function related to digital input channel 2 DIG2 the selections available are the same as presented for DIG1 ref K1 plus the following MONITOR activation of pilot wire monitor function K3 DIGITAL INPUT DIG3 SET UP programmable DIG3 cc XXXXXXXX Programming of the function related to digital input channel 3 DIG3 the selections available are the same as presented for DIG1 ref K1 5 9 Parameter values visualization figure 3 L1 L5 THRESHOLDS STATUS The
37. ns 2 ACTIVATE the PARAMETER MODIFICATION session depressing the ENTER push button and modify the parameter value 3 END the parameter modification session depressing again the ENTER push button 4 REPEAT the procedure from 1 to 3 for all the parameters required to obtain the new protection relay set up 5 CONFIRM the new protection relay set up at the visualization CONFIRM PROG Figure 1 ref J1 within 5 minutes depressing the push buttons ENTER and up to visualize YES and ENTER again to confirm NOTE The protection relay continues to operate using the previous set up until the new set up is confirmed as at point 5 above the visualization of the modified parameters before the new set up confirmation is only temporary to allow an easy definition of the new protection set up If the new set up is not confirmed within 5 minutes from the last pressed push button the protection relay visualizes again the previous set up the parameters set up that the protection relay is still using 11 SEB Divisione Elettronica e Sistemi PROGRAMMING AND TEST 4 2 modify a visualized parameter When the parameter to be modified is visualized on front panel display do the following sequence 1 PRESS ENTER to activate the parameter modification session If one or more parameters are modifiable on the first of them will appear a blinking cursor If no parameters are modifiable no blinking cursor will appear 2 MOD
38. old does not detect earth faults in the 596 of the winding at the neutral end zone Two definite time residual overvoltage thresholds Uo Uo gt gt are available SEB Divisione Elettronica e Sistemi FRONT PANEL KEYS 2 FRONT PANEL KEYS The 5 push buttons on the front panel allow to visualize all the protection parameters and to modify the protection set up gt right arrow down arrow programming session activation or parameter confirmation change or increment of the selected parameter RESET VISUALIZATION OF PARAMETERS reset of the protection relay rif par 4 3 e all visualizations are circular and they can be displayed using the two arrow push buttons e the structure of the visualizations and their contents are showed in Figures 1 to 3 e when the sealable transparent front panel is installed only the arrow push buttons and the RESET push button are accessible to prevent unauthorized modification of the protection set up MODIFICATION OF PARAMETERS e remove the transparent sealable front panel to access ENTER and push buttons SEB Divisione Elettronica e Sistemi FRONT PANEL LED SIGNALLING 3 FRONT PANEL LED SIGNALLING POWER green FAIL red REMOTE red R lt red Uo gt red R lt lt red auxiliary supply available fault condition detected by SELF DIAGNOSIS software or by PILOT WIRE FAULT MONITORING function communication sessio
39. rom 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate time delay function ref K1 K2 K3 paragraph 5 8 G6 DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA Uo eeeeeeee It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to threshold Uo gt DIG1 digital input DIG1 activates the TA delay on threshold Uo gt DIG2 digital input DIG2 activates the TA delay on threshold Uo gt DIG3 digital input DIG3 activates the TA delay on threshold Uo gt More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref K1 K2 K3 paragraph 5 8 26 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING 5 7 Output relays programming figure 3 The session allows to program the activation of the output relays R1 R2 R3 or R4 on START or TRIP conditions of the out of step protection functionalities Only the information related to the functionalities enabled at reference C1 see paragraph 5 4 will be presented Equivalent information and set up related to relay R1 is available for the relays R2 R3 and R4 just c
40. rs primary values All measures can be transmitted to an external controller EVENTS information related to the last 8 events TRIP or STATUS are recorded in the EEPROM memory Information includes the threshold set up and activated relays TRIP event only the measured parameters the digital input status date and time of the event SELF DIAGNOSIS the software includes a non stop monitoring module that controls the functionality of all hardware and software resources of the protection relay Detected fault conditions are reported by e diagnostic message on the display e glow of ared LED on front panel e Rd output relay drop off The fault condition signaling stays until faults are pointed out by the monitoring module during this condition the protection functions are suspended to avoid unsuitable tripping STATUS FUNCTION when the STATUS function is activated by one of the digital input when programmed the protection relay memorizes information related to measured currents and digital input status see par 5 10 EVENTS The recorded information allows an analysis of trip causes in co operative protection relays systems 2 SEB Divisione Elettronica e Sistemi GENERAL CHARACTERISTICS PILOT WIRE FAULT MONITORING when the function is programmed the digital input DIG2 is used to control the correct functionality of the pilot wire Digital input DIG2 is always expected to be complementary of DIG1 input HI LO or LO HI
41. seconds please note that at least one of the digital inputs should be programmed to activate time delay function ref K1 K2 K3 paragraph 5 8 F6 DIGITAL INPUT ACTIVE ON THRESHOLD not programmable TA R lt lt It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to threshold R DIG1 digital input DIG1 activates the TA delay on threshold R DIG2 digital input DIG2 activates the TA delay on threshold R DIG3 digital input DIG3 activates the TA delay on threshold R 24 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref K1 K2 K3 paragraph 5 8 F7 THRESHOLD U gt 50 ENABLING programmable 64S 100 U gt 50 U gt 50 threshold identification cc ON enabled threshold OFF disabled threshold available but not active Programming of the residual 50 Hz voltage threshold to disable the 64S 100 protection function see chapter 1 1 The available settings of the threshold are listed in Table A No time delays are available on the disabling function F8 F9
42. ternal command STATUS the message N A Not Applicable is shown instead of the number of seconds El T Tot N A Q5 DIGITAL CHANNELS RELATED TO MEMORIZED EVENT El DIG dp The list of the digital inputs related to the memorized event is displayed STATUS function command or additional time TA enabled rif par 5 8 32 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING If no digital inputs were activated the message NONE is displayed Q6 Q7 Q8 Q9 MEMORIZED MEASURES ON EVENT Q6 Q7 Q8 Q9 El IR El UR El R El Uo y yy A y YY V zzzzz z zz Uon The values of the measured parameters at the event are displayed IR UR 12 5 Hz current resistive component and voltage R stator to earth resistance Uo 50 Hz residual overvoltage Q10 Q11 Q12 DIGITAL INPUTS STATUS ON EVENT El El E DIGI vv DIG2 vv DIG3 vv The status of the digital inputs at the event are displayed The parameter vv can assume the value HI or LO Q13 Q14 DATE AND TIME OF THE EVENT El Date El Time dd mm yy hh mm ss The date and time of the event are showed 511 TRIPS COUNTERS figure 3 In this section are displayed the total and partial counters of the output relay activation on TRIP conditions for each thresholds and the numbers of programming sessions with the date and time of the last confirmed programming session The total counters the number of confirmed programming sessions and th
43. tion to copy the digital input DIG3 status DIG3 HI R1 ON DIG3 LO R1 OFF The parameter zzz is selectable as the following ON function enabled OFF function disabled H10 TEST OF OUTPUT RELAY R1 TEST R1 XXXXXXXX See paragraph 4 4 5 8 Digital inputs function programming figure 2 For each digital input one of the following functions are selectable a additional time delay related to one or more thresholds only time definite threshold b ON OFF threshold STATUS function recording of measures on external command d pilot wire fault monitoring only DIG2 monitors DIG1 e output relay activation on digital input status ref H8 paragraph 5 7 When function a is programmed a message is displayed at references E5 F6 and G6 When the function of more than one digital input refers to a threshold the priority will be the following a OF selection threshold disabled has the priority on TA function additional time delay b the ALL selection ALL the thresholds has the priority on single threshold selection K1 DIGITAL INPUT DIG1 SET UP programmable DIGI XXXXXXXX Programming of the function related to digital input channel 1 DIG1 Parameter cc programming of the condition that activates the function related to digital input DIG1 the condition is selectable between HI and LO 28 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING Parameter xxxxxxx programming of the fu
44. tivation TRIP of the programmed output relays when the measured resistance exceeds the threshold level XX XX time delay value programmable from 00 02 to 99 99 seconds TI INDIP 02 50 s Example 22 SEB Divisione Elettronica e Sistemi DISPLAY AND PROGRAMMING E4 ADDITIONAL TIME DELAY SET UP programmable TA R1 XX XX S The additional time delay TA is programmable from 00 00 to 99 99 seconds please note that at least one of the digital inputs should be programmed to activate time delay function ref K1 K2 K3 paragraph 5 8 E5 DIGITAL INPUT ACTIVE ON THRESHOLD not programmable Rl lt It shows the digital input programmed to activate the additional time delay TA on the displayed threshold The parameter eeeeeeee can show one of the following values DISABLED none of the digital inputs has been programmed to activate an additional time delay related to threshold R1 DIG1 digital input DIG1 activates the TA delay on threshold R1 DIG2 digital input DIG2 activates the TA delay on threshold R1 DIG3 digital input DIG3 activates the TA delay on threshold R1 More than one digital input can activate the same additional time delay e g DIG 1 3 Please note that to activate the additional time delay at least one of the digital inputs should be programmed ref K1 K2 K3 paragraph 5 8 5 6 2 Threshold R and 64S 100 function disabling F1 ON OFF THRESHOLD programmable 6
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