Sepam 2000 D22 - D32 Merlin Gerin
Contents
1. It max ladjusted P austea l through current Sepam 2000 D32 ol gt gt ladjusted l adjusted l adjusted differential current through current gt gt gt max ladjusted P ajustes i ee 15 E61949 eps Differential protection ANSI 87T code Operation This protection adjusts the current phase and module of each winding according to the parameterized transformer connection It then compares the adjusted currents phase by phase It is activated if the difference in currents Id for at least one phase is greater than the operation set point The set point is defined by the operation characteristic below Protection stability with respect to external faults is also ensured by the biased characteristic and by the 2nd and 5th harmonics neural network restraint which analyzes the percentage as well as the differential and through currents This restraint prevents unwanted tripping when m the transformer is switched on m an asymmetrical fault occurs outside the zone causing saturation of the current transformers m the transformer is supplied by excessive voltage overfluxing Schematic diagram F601 1 phase 1 tripping F601 4 phase 2 Wpping F601 2 phase 3 137 1 tripping F601 3 F601 6 K861 test mode 1 D32 application Characteristics Function number F601 Setting 15 to 50 Resolution 1 Accuracy 0 1 drop out2. I m cable length 3 m with two 9 pin Sub D connectors 222222nneeeennn CCA602 uun b m interfaces box RS485 RS232 nuneeeennennenennnnn ACE909 2 As standards specifications and designs change from time to time please ask for confirmation of the information given in thid publication Publishing Schneider Electric SA Design production Headlines Printing Imprimerie des Deux Ponts ES This document has been printed on ecological paper 01 2002 PCRED398061EN 2 2002 Schneider Electric All right reserved
3. 114 auxiliary 2 tripping KP8 o KTC35 tripping KP10 winding 2 116 thermostat tripping output 013 indication KP5 0 KP13 Q 5 KP1 KP2 output O2 Q KP2 112 remote control authorized KTC35 1 Tripping inhibition by test mode or by KP setting Outputs O1 and O2 are dedicated to the tripping of transformer windings 1 and 2 breaking devices Outputs O12 and O13 are dedicated to tripping indication Time delay T1 is used to calibrate the minimum operating duration of outputs O1 and O12 associated with winding 1 tripping Time delay T2 is used to calibrate the minimum operating duration of outputs O2 and O13 associated with winding 2 tripping Parameter KP13 1 latches outputs O1 O2 O12 O13 Acknowledgment is carried out by pressing reset Output O11 is dedicated to alarms It is not a latching relay Output O14 is dedicated to transformer differential function indication It is not a latching relay Input 118 associated with the Buchholz device triggers windings 1 and 2 tripping Input 116 associated with the thermostat device triggers winding 2 tripping Parameter KP10 affects winding 2 tripping logic via inputs I2 and 114 associated with the auxiliary 1 and auxiliary 2 devices m winding 1 tripping if KP10 0 m windings 1 and 2 tripping if KP10 1 The trip indicator needs to be reset whatever the parameter setting oo 3200 nn nn Kine Merlin Gerin Schneider E
4. are connected to connectors 3A and 3B m winding 3 refers to the circuit that has voltage Un less than or equal to Un the corresponding currents are connected to connectors 4A and 4B By extension this definition also applies to an auto transformer for which 2 windings are partially combined but which have different voltage level U winding 1 U I winding 1 U winding 1 U winding 1 U P winding 2 U P winding 2 ur URL ur U p winding 2 winding 3 winding 2 winding 3 Example of Example of Example of Example of two winding two winding three winding three winding transformer auto transformer transformer auto transformer U 66 kV U 20 kV U 132 kV U 20 kV U 11kV U 15 kV U 33 kV U 15 kV U 11kV U 6kV The zone protected by Sepam 2000 D22 is the zone between the current sensors connected to connectors 2A and 2B at one end and the sensors connected to connectors 3A and 3B at the other end The zone protected by Sepam 2000 D32 is the zone between the current sensors connected to connectors 2A and 2B at one end and the sensors connected to connectors 3A 3B 4A and 4B at the other end Status menu Frequency Fn 50 or 60 Hz D5h Hz Phase CT ratio winding 1 In 10 to 6250 A DOh A Phase CT ratio winding 2 In 10 to 6250 A D9h A Phase CT ratio winding 3 In 0 10 to 6250 A DAh A Type of residual current sensor win
5. 0 eps Connection schemes Three winding transformer Sepam 2000 D32 with 2 earthed neutral points The neutral point current measurements are necessary for restricted earth fault protections LIE L2IL3 MT10620 eps Connection of a5 A current transformer via a CSH30 interposing ring CT e GAJ 21 O 1 Connection of a5A current transformer via a CSH30 interposing ring CT a N _ CSH30 interposing ring CT CM Or j Connection of a 1 A current transformer via a i LIE L2 L3 5 turns Sepam 2000 D32 DPC detection of plugged connectors CDG watchdog a Correspondence between primary and secondary connections e g P1 S1 Schneider Electric EEA Connection schemes Three winding auto transformer Sepam 2000 D32 Lif L2 L3 MT10605 eps NOAR O9 O9 N WO Nh i oo _ N gt _ PEN gt SS e Lif L2EL3 Sepam 2000 D32 DPC detection of plugged connectors CDG watchdog u Correspondence between primary and secondary connections e g P1 S1 a Merlin Gerin Schneider Electric MT10606 eps MT10607 eps Connection schemes Connection of logical inputs outputs ESB board D22 application D32 application 21 DPC detection of plugged connectors detection of plugged connectors 20 19 CDG watchdog watchdog 18 17 16 15 14 13 02 secondary tripping secondary tripping 12 11 10 9 O1 primar
6. 86 10 Value 0 3 Ib Accuracy 1 5 drop out 90 3 Operating time lt 35 ms Reset time lt 35 ms Phase 1 tripping F601 1 Phase 2 tripping F601 2 Phase 3 tripping F601 3 Phase 1 2 or 3 tripping F601 4 Test mode F601 6 Function n 60 h Parameter Id It 1 In reference conditions IEC 60255 13 unit Schneider Electric Functions and characteristics i A Ido In Ido an 1 05 08 Iso Iso setting zone Iro In 0 05 Operation characteristics In phase CT rating E61951 eps Ineutral i Schneider Electric Differential protection ANSI code 64 REF Operation Restricted earth fault protection detects phase to earth faults in a winding of a transformer with an earthed neutral It offers the advantage of having greater sensitivity than differential protection The function is based on a comparison of the residual current lo lo 1 12 13 and the neutral current Ineutral It picks up if the module of the difference lo Ineutral is greater than the operating set point This set point is defined by first a minimum Iso set point and secondly by a percentage type tripping characteristic with a slope of 1 05 and an Ino restraint current characteristic in normal conditions see curve gt gt gt ro l1 12 13 The sensitivity of the protection is determined by the phase current sensors with a minimum Iso set point of 5 In The protected zone is between the phase CTs a
7. Remote setting enable Remote setting disable Schneider Electric normally closed contact normally open contact normally closed contact normally open contact normally closed contact normally open contact KP1 0 KP1 1 KP2 0 KP2 1 KP5 0 KP5 1 KP7 0 KP7 1 KP8 0 KP8 1 KP10 0 KP10 1 KP13 1 KP6 1 KP9 1 KP20 1 KP50 1 KP51 1 KP52 1 KP38 0 KP38 1 11 Functions and characteristics 2 differential restricted earth fault 2 restricted earth fault 3 MT10619 tripping inhibition 1 external tripping normally position KP7 1 Tripping inhibition by test mode or by KP setting E external tripping validation KP10 latching KP13 112 remote control authorized KTC35 latching KP13 112 remote control authorized Program logic Sepam 2000 D32 Breaking devices tripping output 014 protection indication tripping inhibition 2 output O1 tripping winding 1 output 012 indication reset TRIP indicator 112 remote control authorized KTC35 output O2 tripping winding 2 tripping inhibition 2 coil type KP2 output O13 indication output 021 tripping reset winding 3 output O22 indication coil type KP2 2 Tripping inhibition as the former one but held during 2 Sepam cycles after the end of the tripping inhibition setting see Installation and user s ma
8. Sepam 2000 connector box Connection schemes Two winding transformer Sepam 2000 D22 The transformer neutral points may or may not be earthed No neutral point CT is necessary for proper operation of the differential protection MT10599 eps Sepam 2000 D22 DPC detection of plugged connectors CDG watchdog Correspondence between primary and secondary connections e g P1 S1 PA Merlin Gerin Schneider Electric Connection schemes Two winding transformer Sepam 2000 D22 with earthed neutral point The transformer primary neutral may or may not be earthed Neutral current measurement on the secondary winding is essential for correct operation of the restricted earth fault protection function 87T Connection of a 5 A current transformer via a CSH30 interposing ring CT Connection of a 1 A current transformer via a CSH30 interposing ring CT Pr qki LIE L2 L3 E61959 eps AIO N cae N 19 18 17 16 15 0 0 mmm 0 0 0 0 0 0 __ o NOUR OONO ONORA a E E61960 eps Sepam 2000 D22 DPC detection of plugged connectors CDG watchdog Me Correspondence between primary and secondary connections e g P1 ST Schneider Electric WW Merlin Gerin Connection schemes Two winding transformer Sepam 2000 D22 with earthing coil The transformer primary neutral may or may not be earthed Neutral current measureme
9. Transformer differential protection OR Sepam 2000 D22 D32 anuar Merlin Gerin 2002 Schneider Electric Get more with the world s Power amp Control specialist Schneider Electric Contents Presentation Selection table Definitions and general parameters Functions and characteristics Differential protection 87T Differential protection 64 REF Measurements Disturbance recording Control and monitoring Operating mode Program logic Sepam 2000 D22 Program logic Sepam 2000 D32 Modbus communication General characteristics Installation recommendations Determination of current sensors and settings Dimensions and weights Connections Connection schemes Sepam 2000 D22 Two winding transformer Two winding transformer with earthed neutral point Two winding transformer with earthing coil Generator transformer unit Connection schemes Sepam 2000 D32 Three winding transformer Three winding transformer with 2 earthed neutral points Three winding auto transformer Connection schemes Connection of logical inputs outputs oO N CON DOF A 12 14 15 16 16 17 18 18 19 20 21 22 22 23 24 25 25 MT10593 tif Presentation The Sepam 2000 D22 and D32 differential protections are designed to protect a two ended or a three ended zone which inckudes a transformer an auto transformer or a generator transformer unit x 3 ly 4 Sepam 2000 D22 Selection table Advantages m Complet
10. arth fault winding3 m H E E E REF 3 External tripping u o 1 o 1 u o 1 o 1 EXT TRIP Detection of plugged connectors CONNECTOR 1 According to parameter setting Parameter setting Parameters KP can be set by means of the console Tripping control Winding 2 with shunt trip coil KP2 0 Winding 2 with undervoltage release coil KP2 1 Winding 3 with shunt trip coil KP3 0 Winding 3 with undervoltage release coil KP3 1 Operating functions Input I2 activated if fault detected by auxiliary device external tripping normally closed contact KP7 0 normally open contact KP7 1 External tripping 12 activates winding 1 upstream tripping KP10 0 External tripping 12 activates windings 1 2 and 3 tripping KP10 1 Latching of outputs associated with tripping O1 O2 O12 O13 O21 O22 KP13 1 Operating mode Switching to test mode KP6 1 Inhibition of differential and restricted earth fault tripping KP9 1 Counter Resetting of fault trip counter KP20 1 Disturbance recording Lock triggering KP50 1 Automatic unlock and triggering KP51 1 Manual unlock and triggering KP52 1 Remote setting Remote setting enable KP38 0 Remote setting disable KP38 1 Schneider Electric Merlin Gerin 13 Functions and characteristics Introduction The communication option can be used to connect Sepam 2000 to aremote monitoring and control system equipped with a communication channel Sepam can be equipped wit
11. at devices integrated in the equipment alarm tripping and indication Auxiliary 1 auxiliary 2 D22 application Processes faults detected by the auxiliary devices such as Buchholz or thermostats or integrated in the on load tap changer and neutral earthing alarm tripping and indication External tripping D32 application Input available to the Sepam to take into account a process fault detected by an other device tripping an indication Fault trip counter Counts the number of trips due to faults detected by the protections or other devices Buchholz auxiliary 1 auxiliary 2 to facilitate equipment maintenance Disturbance recorder triggering Triggers the recording of electrical signals and logical states m manualy by local or remote action m automatically by differential and restricted earth fault protections functions Triggering may be locked in order to transfer disturbance records from Sepam 2000 to a PC Recording is unlocked by reactivating automatic or manual triggering Merlin Gerin Schneider Electric E61957 eps Functions and characteristics Schneider Electric Operating mode Several operating modes are available to facilitate maintenance and commissioning operations The change from one mode to the other is obtained by means of KP6 and KP9 parameter settings Normal The protection functions operate on tripping and signalling contacts according to the settings This mode is the n
12. cquisition boards tripping outputs O1 O2 and 021 differential and restricted earth fault operation digital inputs 111 to 118 2 COMTRADE IEEE C37 111 1997 IEC 60255 24 Record signals may be restituted using the SFT2826 software program Channels vis ecloser O a A A Trip 125 Tirne ms V Dig Channels Use mouse to set time space 62 il Show data Example of the processing of a disturbance recording record using the SFT2826 PC software program Schneider Electric MT10594 eps Functions and characteristics Control and monitoring Latching acknowledgment ANSI 86 Memorizes tripping orders latching and requires user action to be put back into service reset Annunciation ANSI 30 Informs the user by means of a message which appears on the display unit Alarms Buchholz Thermostat Auxiliary 1 Auxiliary 2 Fault detection Differential Secondary restricted earth fault Tertiary restricted earth fault Buchholz Thermostat Auxiliary 1 Auxiliary 2 External tripping ie Inhibition of differential protection Operating mode test connection inhibition of outputs Detection of plugged connectors DPC ANSI 74 Indication on the display unit that one or more connectors are not plugged in the DPC connections must be made see connection diagrams Buchholz and thermostat D22 application Processes faults detected by the Buchholz and thermost
13. ction percentage set point set a value greater than the amplitude of on load tap changer variation The 999 setting may be used to inhibit the protection all the outputs are set to zero m Ihe Iso setting of the restricted earth fault protection The 999 setting may be used to inhibit the protection All outputs are set to zero 16 Determination of current sensors and settings Determination of current sensors For transformer differential protection m The current transformers CT used shall be of the 5P20 type m The phase CT rating should comply with the following rules 01 lt In lt 25 for winding 1 43 Un 3 j 0 1 S _ lt in lt 25 for winding 2 v3 Un v3 Un S 335 0 1 San for winding 3 v3 Un v3 Un S is the transformer power set in the status menu 2 winding transformer S is the rated power 3 winding transformer S is power value of the most powerful winding In In and In are the ratings of the winding 1 2 and 3 phase current transformers respectively Un Un and Un are the winding 1 2 and 3 voltages respectively For restricted earth fault protection m Stability with external faults is ensured if the phase CT saturation current is greater than 2 4 times the phase to earth fault current and 1 6 times the 3 phase fault current Sensitivity to internal faults is ensured if the neutral CT saturation current is greater than twice the phase to earth fault
14. current m The neutral point CT rating should comply with the following rule 0 1 In lt neutral point CT rating lt 2 In with In phase CT rating of the same transformer winding lf the phase CT rated current In is sufficiently low In lt 300 A the neutral current may be measured by a CSH120 or CSH200 core balance CT If this is not the case which happens most frequently the neutral current is measured by a CT A CSH30 interposing ring CT is required between the 1 Aor5A secondary winding of the neutral CT and the Sepam 2000 residual current input Schneider Electric E56472 tif Installation recommendations x Sepam 2000 D22 rear face with standard connectors Schneider Electric Dimensions and weights Connections Dimensions and weights ae mounting latches x2 E61966 eps gt I 22a 201 Y 20 gt a 300 222 Bi 352 gt Cut out sj 5 202 1 WW Be 4 Connections E56468 eps Current transformers screw for lt 6 mm CCA660 connector 4 eye lug CSH core balance CTs screw lt 25mm CCA606 connector CSH 30 adapter Logic inputs outputs screw lt 2 5mm CCA621 connector Power supply screw lt 2 5mm CCA604 connector Jbus Modbus 9 pin sub D CCA602 cable length 3 m communication connector with two 9 pin sub D CCA619 9 pin sub D 1 Accessories supplied with
15. ding 1 TC CSH30 D2h index 4 Rated residual current winding 1 Ino 1 to 6250 A D2h A Type of residual current sensor winding 2 TC CSH30 DBh index 4 Rated residual current winding 2 Ino 1 to 6250 A DBh A Type of residual current sensor winding 3 TC CSH30 DFh index 4 Rated residual current winding 3 Ino 1 to 6250 A DFh A Numerical index of vector group 0 to 11 DEh winding 2 versus winding 1 Numerical index of vector group 0 to 11 DEh winding 3 versus winding 1 Rated power of the transformer S 1to999MVA DEh MVA Rated voltage winding 1 Un 220 V to 800 kV DEh V Rated voltage winding 2 Un 220 V to 800 kV DEh V Rated voltage winding 3 Un 220 V to 800 kV DEh V 1 Sepam 2000 D32 2 Whatever the star or delta connections of the windings 3 S refer to the rated power of the transformer in case of two winding transformer S refer to the winding of highest power in case of three winding transformer 4 Meaning of the index 2 TC CSH30 other value not used Schneider Electric RS 3 E61950 eps E56448 eps E48824 eps Functions and characteristics Percentage operation characteristics a v3 Un Id Ib id It 50 tripping Sepam 2000 D22 Id ladjusted T adjusted differential current 1 gt gt transformer rated current IT
16. e protection against internal transformer faults m Restricted earth fault protection included Processing of transformer and neutral coil Buchholz and thermostat data Simple implementation due to the use of neural networks simplified sizing of current sensors few settings no matching transformers required Measurement primary secondary currents and phase shifts residual currents differential and through currents memorization of differential and through current at the time of the fault Test position Disturbance recording High level of electromagnetic compatibility EMC makes it possible to use digital technology in electrical substations without the need for any particular precautions m Sepam 2000 s continuous self testing sets the device in a predetermined fail safe position when failures occur preventing random operation m Terminal blocks which may be individually disconnected while energized to facilitate maintenance m Setting and testing are extremely simple The settings may be made on the front panel serial link O one by one using the TSM2001 pocket terminal or the SFT2801 PC software program o all at once using the SFT2821 PC software program downloading m The optional communication functions can be used for remote setting of protections remote metering remote annunciation and remote control via a two wire link with a supervisor for centralized management m ISO 9001 certified design and manufactu
17. front face Vibrations IEC 60255 21 1 class Shocks jolts IEC 60255 21 2 class Earthquakes IEC 60255 21 3 class Fire resistance IEC 60695 2 1 glow wire Electromagnetic compatibility Radiated fields IEC 60255 22 3 class X 30 V m IEC 61000 4 3 class III 10 V m Electrostatic discharge IEC 60255 22 2 class III IEC 61000 4 2 class III Damped 1 MHz wave IEC 60255 22 1 class III 5 ns electrical fast transients burst IEC 60255 22 4 class IV IEC 61000 4 4 class IV 1 2 50ms 8 20ms surge immunity IEC 61000 4 5 class III 2 kV differential mode 42 Q 1 kV common mode 42 Q Conducted disturbance emission EN 55022 CISPR22 class B with auxiliary power supply Radiated field emission EN 55022 CISPR22 class B 4 CE marking on our product guarantees their conformity to European directives 1 except for communication 1 4 kV dc and auxiliary power supply 2 8 kV dc 2 except for communication 3 kV common mode 1 kV differential mode 3 EN 50081 1 generic standard 4 EN 50081 2 generic standard Schneider Electric CENAN ES Installation recommendations Implementation settings Check m connections m settings of microswitches SW1 and SW2 O measurement of phase currents 1 A secondary 5 A secondary SW2 o measurement of lo current TC CSH30 1 For each transformer winding m set SW1 to CT CSH30 Set the following using the console m general parameters m control logic parameters m differential prote
18. h the Jbus Modbus communication option It is a master slave protocol with RS485 and with 2 wire physical link 300 to 38400 baud rate Remote reading of settings The Jbus Modbus communication option can be used for remote reading of the following information m general characteristics m protection settings m status and settings of all control logic resources Remote setting The Jbus Modbus communication option can be used for remote modification of the following parameters m protection settings m control logic time delay set points Time tagging The communication option can be used for accurate dating of all remote indications 1 See Jbus Modbus communication manual article 75757 14 Modbus communication List of available data Logic input status Logic output status Fault trip counter Sepam not reset after fault Remote control validation report Differential Buccholz alarm Buchholz tripping Thermostat alarm Thermostat tripping Auxiliary 1 alarm Auxiliary 1 tripping External tripping Auxiliary 2 alarm Auxiliary 2 tripping Restricted earth fault winding 2 Restricted earth fault winding 3 Inhibition Test Inhibited disturbance recording lock triggering Remote setting inhibited C2 KTS5 KTS14 KTS15 KTS17 1 KTS18 7 KTS19 1 KTS20 KTS21 KTS22 1 KTS22 2 KTS23 KTS24 1 KTS25 KTS26 2 KTS30 KTS31 KTS50 KTS51 Acknowledgment of messages Inhibit
19. ift with respect to the primary current for each of the phases Residual current Measurement of lo current for each winding Differential and through current Display of the differential and through currents for each of the three phases calculated by the differential protection expressed in primary rms amps Tripping currents Display of the value of the differential and through currents for each of the three phases which was stored when the differential protection gave the tripping order expressed in primary rms amps Characteristics Measurements ss Rnges Phase current 0 to 24 In 0 5 at In Phase shift 0 to 359 3 at In Residual current lo 0 to 10 Ino 5 Differential currents Id1 Id2 Id3 0 to 24 In 5 Through currents It1 It2 It3 0 to 24 In 5 Tripping currents Differential trip Id1 trip Id2 trip Id3 0 to 24 In 5 Through trip It1 trip It2 trip It3 0 to 24 In 5 1 in reference conditions IEC 60255 13 The measurements are available directly in the appropriate units A KA on Sepam via the console 6 Merlin Gerin Schneider Electric Functions and characteristics Operation Principe Used to record analog signal and logical states Record storage is triggered by a triggering event m tripping of differential protection m tripping of restricted earth fault protection m local manual triggering m remote manual triggering The duration of the signal recorded before the t
20. ion disturbance recording lock triggering Automatic unlock and triggering of disturbance recording Manual unlock and triggering of disturbance recording KTC35 KTC50 KTC51 KTC52 Parameters reading only Protections settings Control delay settings 1 D22 application 2 D32 application Schneider Electric Functions General characteristics and characteristics Electrical characteristics Current transformer 1ACT lt 0 001 VA 10 A to 6250 A ratings 5 ACT lt 0 025 VA Co Voltage 24 30 Vdc 48 127 Vdc 220 250 Vdc Consumption 4 mA 4 mA 3 mA GoU BE rr re eee DC voltage 24 30 Vdc 48 127 Vdc 220 250 Vdc Typical consumption 18 W 19 5 W 21W eee eee eee Voltage 24 30 Vdc 48 Vdc 125 Vdc 220 250 Vdc Rated current 8A 8A 8A 8A 400 ms overload 15A 15A 15A 15A Making capacity 15A 15A 15A 15A Breaking capacity DC with resistive load 8A 4A 0 8A 0 3A DC with resistive load 6A 2A 0 4A 0 15A DC at L R 40 ms 4A 1A 0 2A 0 1A AC with resistive load 8A 8A 8A 8A AC with p f 0 3 5A 5A 5A 5A Environmental characteristics Dielectric withstand IEC 60255 5 2kV 1 mn 1 2 50 us impulse wave withstand IEC 60255 5 5 kV 2 Climatic withstand Operation IEC 60068 2 1 and2 5 C to 55 C IEC 60068 2 14 5 Cto 55 C Storage IEC 60068 2 25 C to 70 C Damp heat IEC 60068 2 3 93 RH at 40 C 56 days storage 10 days operation Corrosion influence IEC 60654 4 class Mechanical robustness Degree of protection IEC 60529 IP 51
21. lectric Functions and characteristics winding 1 winding 2 Differential E Restricted earth fault E Buchholz alarm Buchholz tripping Thermostat alarm Thermostat tripping m E Auxiliary 1 alarm Auxiliary 1 tripping E m Auxiliary 2 alarm Auxiliary 2 tripping E m 1 Detection of plugged connectors 1 According to parameter setting Parameters KP can be set by means of the console Operation 01 02 011 012 013 014 Parameter setting Program logic Sepam 2000 D22 Message DIFF REF BUCHHOLZ BUCHHOLZ TR TEMP TR TEMP AUX 1 AUX 1 AUX 2 AUX 2 CONNECTOR Tripping control Winding 1 with shunt trip coil Winding 1 with undervoltage release coil Winding 2 with shunt trip coil Winding 2 with undervoltage release coil Operating functions Inputs 115 116 117 118 activated if fault detected by Buchholz thermostat devices Inputs 11 I2 activated if fault detected by auxiliary 1 device Inputs 113 114 activated if fault detected by auxiliary 2 device Aux 1 12 and Aux 2 114 activate winding 1 upstream tripping Aux 1 12 and Aux 2 114 activate windings 1 and 2 tripping Latching of outputs associated with tripping O1 O2 012 013 Operating mode Switching to test mode Inhibition of differential and restricted earth fault tripping Counter Resetting of fault trip counter Disturbance recording Lock triggering Automatic unlock and triggering Manual unlock and triggering Remote setting
22. nd neutral CT Stability with external faults When an external fault is detected the restraint current becomes equal to sl 2 2 2 11 12 13 10 3 This makes the protection insensitive to current transformer saturation without inhibiting its operation Schematic diagram eps amp Tore CSH 2A gt gt gt gt gt co Ineutral Ido I1 12 I3 Ineutral Tore CSH 30A Q CT CSH 30 FOG Ido gt 105 Iro gt diro 11 12 13 l gt gt i lro zii 12 13 ne u 3 Characteristics Function number F651 F661 2 Setting 0 05 In to 0 8 In if In gt 20 A 0 1 Into 0 8 In if In lt 20 A Resolution 1 A ou 1 digit Accuracy 9 5 or 0 5 In drop out 93 5 Min reserve difference min 0 4 In Fixed value Accuracy 1 05 2 Operating time lt 40 ms Memory time lt 25 ms Fault recognition time lt 25 ms Reset time lt 40 ms Instantaneous tripping 64 REF winding 2 F651 1 Instantaneous tripping 64 REF winding 3 F661 1 Function code Parameter 1 In reference conditions IEC 60255 13 2 D32 application F651 65h F661 2 66h Threshold Iso unit 1A Functions Measurements and characteristics Measurements used for commissioning and maintenance Used to check current transformer connection and for testing Phase current Measurement of current for each of the three phases of each winding Measurement of phase sh
23. nt on the secondary winding is essential for correct operation of the restricted earth fault protection function E61961 eps winding 1 L 3 oO Bak ak CO 17 16 15 O O O0 0 0 0 0 0 0 0 0 0 O0 NWA TONDO gt ONURA Connection of a 5 A current transformer via a CSH30 interposing ring CT 21 Connection of a 1 A current transformer via a CSH30 interposing ring CT E61962 eps 5 turns Sepam 2000 D22 DPC detection of plugged connectors CDG watchdog u Correspondence between primary and secondary connections e g P1 S1 u Merlin Gerin Schneider Electric Connection schemes Generator transformer unit Sepam 2000 D22 MT10602 eps Sepam 2000 D22 DPC detection of plugged connectors CDG watchdog ii Correspondence between primary and secondary connections e g P1 S1 Schneider Electric WW Merlin Gerin Connection schemes Three winding transformer Sepam 2000 D32 No neutral point CT is necessary for proper operation of the differential protection MT10603 eps UL _ oO EISEIE o O N O D gt OOD GAJ 21 4 1 a N _ Q Q N Sepam 2000 D32 DPC detection of plugged connectors CDG watchdog i Correspondence between primary and secondary connections e g P1 S1 2 Merlin Gerin Schneider Electric E6196
24. nual 12 Outputs O1 O2 and O21 are dedicated to the tripping of transformer windings 1 2 and 3 breaking devices Outputs 012 013 and O22 are dedicated to tripping indication Time delay T1 is used to calibrate the minimum operating duration of outputs O1 and O12 associated with winding 1 tripping Time delay T2 is used to calibrate the minimum operating duration of outputs O2 013 O21 and O22 associated with windings 2 and 3 tripping Acknowledgment is carried out by pressing reset Output O14 is dedicated to transformer differential function indication It is not a latching relay Parameter KP10 affects windings 2 and 3 tripping logic via input I2 associated with the external tripping signal m Winding 1 tripping if KP10 0 m Windings 1 2 and 3 tripping if KP10 1 The TRIP indicator needs to be reset whatever the parameter setting Nota the operating of the winding 2 it the same as the operating of the winding 3 if one trips the other does it too the winding 1 breaking device is with shunt trip coil The windings 2 and 3 breaking devices may be setted with shunt trip coil or with undervoltage release coil Schneider Electric Functions Program logic and characteristics sepam 2000 D32 Operation EDL s S Wr ee O1 02 021 012 013 014 022 Message winding 1 winding 2 winding 3 winding 1 winding 2 winding 3 Differential DIFF Restricted earth fault winding 2 m E REF2 Restricted e
25. ormal operation mode Tripping inhibition The protection functions operate on signalling contacts according to the settings The tripping output contacts are inhibited This mode is designed to test Sepam 2000 when the protected equipment is still on duty Test mode and tripping inhibited The protection functions operate on signalling contacts according to the test mode settings The tripping contacts are inhibited This mode is designed to facilate the test of Sepam when the protected equipment is still on duty Test mode and tripping active The protection functions operate on tripping and signalling contacts according to the test mode settings This mode is designed to facilate the test of Sepam 2000 including actuators and wiring The protected equipment is not on duty 1 See Installation and user s manual Functions Program logic and characteristics sepam 2000 D22 Grouping of alarms 115 thermostat alarm MT10617 eps 117 Buchholz alarm output O11 11 auxiliary 1 alarm a 113 auxiliary 2 alarm KP8 Breaking devices tripping 5 differential output 014 E protection restricted earth fault indication trip indicator tripping inhibition 1 112 remote control authorized KTC35 KP1 output O1 tripping 118 Buchholz tripping winding 1 output 012 KP13 indication 12 auxiliary 1 tripping KP7 o 112 remote control authorized
26. riggering event may be set using the pocket terminal via the oscillography item in the status menu The date of record storage may also be accessed via the pocket terminal in the oscillography item of the status menu and via the communication link refer to Jbus Modbus communication document This date corresponds to the date of the triggering event The stored event begins before the triggering event and continues afterwards stored record E61954 eps Characteristics Record duration Record content Analog signals recorded Logical states recorded The record includes of the following informations m values sampled from the different signals m the date Number of records stored m the characteristics of the recorded channels File format The files are recorded in FIFO First In First Out type shift storage the oldest record is erased when a new record is triggered Transfer Restitution Files may be transferred locally or remotely m locally using a PC which is connected to the console connector and has the SFT2801 software package version later than 9802 m remotely using a software package specific to the 1000 remote monitoring and control system Disturbance recording triggering event 86 periods the duration before the triggering event may be set from 1 to 85 periods set up file date and channel characteristics data file 12 values per period recorded signal all currents connected to the a
27. ring processes BHEBOHOAOtoUoOo dd E Selection table Protections ANSI code Biased differential 87T a Restricted earth fault winding 2 64REF u u Restricted earth fault winding 3 64REF E Metering Phase currents winding 1 u a Phase currents I winding 2 a u Phase currents I winding 3 u Phase shift between and I E E Phase shift between and I m Residual current lo E Residual current lo E E Residual current lo E Differential currents Id1 Id2 Id3 E E Through currents It1 It2 It3 E E Tripping currents differential trip Id1 trip Id2 trip Id3 m E through trip It1 trip It2 trip It3 E E Disturbance recording E a Control and monitoring Latching acknowledgment 86 E E Annunciation 30 E u Buchholz and thermostat E Auxiliary 1 E Auxiliary 2 E External tripping m Detection of plugged connector DPC 74 E u Fault trip counter E E Disturbance recording triggering u m Sepam 2000 model S36 CR CC Number of ESTOR boards 1 2 Merlin Gerin Schneider Electric E61946 eps Presentation Definitions and general parameters Definitions The terms winding 1 and winding 2 are used like that m winding 1 refers to the circuit that has the highest voltage Un the corresponding currents are connected to connectors 2A and 2B m winding 2 refers to the circuit that has voltage Un less than or equal to Un the corresponding currents
28. ripping reserved reserved Schneider Electric Notes Schneider Electric 27 Notes 28 Merlin Gerin Schneider Electric Schneider Electric Industries SA ART 15805 Postal address F 38050 Grenoble cedex 9 Tel 33 0 4 76 57 60 60 http www schneider electric com Ordering informations Sepam 2000 quantity Sepam type D een a INES Ree eee A Ren oe en RR Terao sete ace OA AE AE IA E cele cde eatin Seco tea IA tec Option COMMUNICATION nenne WITHOUT ae a ne ee nee ee Jbus Modbus Working langUage inesnnsn en FISHEN Soxienaiemsseeetentanwetanacer aie LEINE EIER IRRE URL E E E E INGE English aan Senses EEEE EEE E AEE EE Spanish zieren 1 a E N E E A E S talian sensein Auxiliary power SUPPLY zueeeeeseneennennnnennnnsnnnnnnnnnnnnnnnn 24 30 VAC ooeec INCH NE EEE ECT ERBE E ELTA 48 127 VOC anne ee 220 250 VC nn Accessories quantity Pocket terminal cccccccccsseseeeeeeeeseeeseeeeseeeeeeeeees TSM2001 Setting software with PC connexion kit SFT2801 SPT 2821 secsi Disturbance recording display software SFT2826 I Interposing ring CT for residual current INpuls iscem ene etcrotenntacencenecnattaetnntnene CS HIO wsssistisesi o Jbus Modbus communication m 9 pin sub D connector DOX ce eceee cece eeeeeeeees CCA619 m Jbus Modbus network connection box CCA609
29. y tripping primary tripping 8 7 6 4 12 auxiliary 1 tripping external tripping 3 2 1 auxiliary 1 alarm reserved 4 ESTOR 1 board D22 application D32 application 21 DPC detection of plugged connectors detection of plugged connectors 20 19 118 Buchholz tripping reserved 18 117 Buchholz alarm reserved 17 116 thermostat tripping reserved 16 115 thermostat alarm reserved 15 114 auxiliary 2 tripping reserved 14 113 auxiliary 2 alarm reserved 13 common reserved 12 014 transformer differential or transformer differential or 11 restricted earth fault indication restricted earth fault indication 10 013 indication of winding indication of winding 9 2 tripping 2 tripping 8 012 indication of winding indication of winding 7 1 tripping 1 tripping 6 011 alarm thermostat or Buchholz reserved 5 or auxiliary 1 or auxiliary 2 4 112 remote control authorized remote control authorized 3 2 111 reserved for communication reserved for communication 1 synchronization synchronization Schneider Electric Bea MT10608 eps Connection schemes Connection of logical inputs outputs ESTOR 2 board D32 application 21 20 19 18 17 16 15 14 13 12 11 10 co NIJO AJA O N 0 DPC 128 127 126 125 124 123 024 023 022 021 122 121 detection of plugged connectors reserved reserved reserved reserved reserved reserved reserved reserved reserved indication of winding 3 tripping winding 3 t
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