)HDWXUHV Interlocking function available for a bus coupler bay arrangement Suitable for up to double busbars and a transfer busbar

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1 ,QWHUORFNLQJIRUEXVFRXSOHU ED\ Page 1 Revision: - Issued: November 2002 Data subject to change without notice )HDWXUHV Interlocking function available for a bus coupler bay arrangement Suitable for up to double busbars and a transfer busbar Preconfigured and tested interlocking function block Easy to adapt to customer s specific requirements Distributed solution, no central function $SSOLFDWLRQ The interlocking function blocks the possibility to operate high voltage switching devices, for instance when a disconnector is under load, in order to prevent material damage and/or accidental human injury. Each control terminal has interlocking functions for different switchyard arrangements, each handling interlocking of one bay. The function is distributed to each control terminal and not dependent on any central function. For the station-wide interlocking, the control terminals communicate via the system-wide interbay bus or by using hardwired binary inputs/outputs. The interlocking conditions depend on the circuit configuration and status of the installation at any given time. The interlocking module ABC_BC is used for a bus-coupler bay connected to a double busbar arrangement according to figure 1. The module can also be used for a single busbar arrangement with transfer busbar or double busbar arrangement without transfer busbar. Q1 Q20 Q51 Q2 Q7 A (BB1) B (BB2) C(TB) Q0 Q vsd Figure 1: Switchyard layout ABC_BC

2 Page 2 'HVLJQ For easy and safe implementation of the interlocking function, the control terminal is delivered with standardized and tested software interlocking modules containing logic for the interlocking conditions. The interlocking conditions can be altered, to meet the customer s specific requirements, by adding configurable logic by means of the graphical configuration tool CAP 531. The input signals EXDU_xxx shall be set to true if there is no transmission error at transfer of information from another bay. The signal is generated from the data valid output in the command function block, that receives the transferred information. The input signals EXVVA_xx are always set to true, because the interlocking software is always running in our applications. The inputs QxEXy are used for delivery specific conditions to be added to the standard modules if required. Required signals with designations ended with TR are intended to be transferred to other bays. The figure Switchyard layout ABC_BC shows the designations of the apparatuses that can be dealt with by the ABC_BC. )XQFWLRQEORFN Q0_OP Q0_CL Q1_OP Q1_CL Q20_OP Q20_CL Q7_OP Q7_CL Q2_OP Q2_CL Q51_OP Q51_CL Q52_OP Q52_CL Q15_OP Q15_CL Q25_OP Q25_CL Q75_OP Q75_CL BBTR_OP BC_AB_CL VP_BBTR VP_BC_AB EXDUP_ES EXVVA_ES EXDUP_AB EXVVA_AB EXDUP_BC EXVVA_BC Q0_O_EX1 Q0_O_EX2 Q0_O_EX3 Q1EX1 Q1EX2 Q1EX3 Q20EX1 Q20EX2 Q20EX3 Q2EX1 Q2EX2 Q7EX1 Q7EX2 IG01- Q0OPREL Q0OPITL Q0CLREL Q0CLITL Q1REL Q1ITL Q20REL Q20ITL Q7REL Q7ITL Q2REL Q2ITL Q51REL Q51ITL Q52REL Q52ITL Q1OPTR Q1CLTR Q20OPTR Q20CLTR Q7OPTR Q7CLTR Q1Q20OPT Q1Q20CLT BCABOPTR BCABCLTR BCACOPTR BCACCLTR BCBCOPTR BCBCCLTR VPQ1TR VPQ20TR VPQ7TR VPQ1Q20T VPBCABTR VPBCACTR VPBCBCTR xx vsd

3 Page 3,QSXWDQGRXWSXW VLJQDOV 7DEOH,QSXWVLJQDOVIRUWKH,*QQIXQFWLRQEORFN Q0_OP Signal is 1 if Q0 is open Q0_CL Signal is 1 if Q0 is closed Q1_OP Signal is 1 if Q1 is open Q1_CL Signal is 1 if Q1 is closed Q20_OP Signal is 1 if Q20 is open Q20_CL Signal is 1 if Q20 is closed Q7_OP Signal is 1 if Q7 is open Q7_CL Signal is 1 if Q7 is closed Q2_OP Signal is 1 if Q2 is open Q2_CL Signal is 1 if Q2 is closed Q51_OP Signal is 1 if Q51 is open Q51_CL Signal is 1 if Q51 is closed Q52_OP Signal is 1 if Q52 is open Q52_CL Signal is 1 if Q52 is closed Q15_OP Signal is 1 if earthing switch Q15 on busbar A is open Q15_CL Signal is 1 if earthing switch Q15 on busbar A is closed Q25_OP Signal is 1 if earthing switch Q25 on busbar B is open Q25_CL Signal is 1 if earthing switch Q25 on busbar B is closed Q75_OP Signal is 1 if earthing switch Q75 on busbar C is open Q75_CL Signal is 1 if earthing switch Q75 on busbar C is closed BBTR_OP Signal is 1 if no busbar transfer is in progress concerning this bus coupler BC_AB_CL There exists a bus coupler connection between busbar A and B VP_BBTR Switch status are valid for all apparatuses involved in the busbar transfer VP_BC_AB Switch status of the bus coupler apparatuses connected between busbar A and B are valid (open or EXDUP_ES Signal is 1 if there is no transmission error from any bay containing earthing switches Q15, Q25 or Q75 EXVVA_ES Signal is 1 if the interlocking programs in all bays containing earthing switches Q15, Q25 or Q75 are running EXDUP_AB Signal is 1 if there is no transmission error from any bay connected to the AB busbars EXVVA_AB Signal is 1 if the interlocking programs in all bays connected to the AB busbars are running EXDUP_BC Signal is 1 if there is no transmission error from any bay connected to the BC busbars EXVVA_BC Signal is 1 if the interlocking programs in all bays connected to the BC busbars are running Q0_O_EX1 Q0_O_EX2 Q0_O_EX3

4 Page 4 Q1EX1 Q1EX2 Q1EX3 Q20EX1 Q20EX2 Q20EX3 Q2EX1 Q2EX2 Q7EX1 Q7EX2 Input for an external condition for apparatus Q2 Input for an external condition for apparatus Q2 Input for an external condition for apparatus Q7 Input for an external condition for apparatus Q7 7DEOH Q0OPREL Q0OPITL Q0CLREL Q0CLITL Q1REL Q1ITL Q20REL Q20ITL Q7REL Q7ITL Q2REL Q2ITL Q51REL Q51ITL Q52REL Q52ITL Q1OPTR Q1CLTR Q20OPTR Q20CLTR Q7OPTR Q7CLTR Q1Q20OPT Q1Q20CLT BCABOPTR BCABCLTR BCACOPTR 2XWSXWVLJQDOVIRUWKH,*QQIXQFWLRQEORFN Opening of Q0 is allowed Opening of Q0 is forbidden Closing of Q0 is allowed Closing of Q0 is forbidden Switching of Q1 is allowed Switching of Q1 is forbidden Switching of Q20 is allowed Switching of Q20 is forbidden Switching of Q7 is allowed Switching of Q7 is forbidden Switching of Q2 is allowed Switching of Q2 is forbidden Switching of Q51 is allowed Switching of Q51 is forbidden Switching of Q52 is allowed Switching of Q52 is forbidden Signal is 1 if Q1 is open Signal is 1 if Q1 is closed Signal is 1 if Q20 and Q2 are open Signal is 1 if Q2 or Q20 or both are not open Signal is 1 if Q7 is open Signal is 1 if Q7 is closed Signal is 1 if Q1 or Q20 or both are open Signal is 1 if Q1 and Q20 are not open busbar A and B A and B busbar A and C

5 Page 5 BCACCLTR BCBCOPTR BCBCCLTR VPQ1TR VPQ20TR VPQ7TR VPQ1Q20T VPBCABTR VPBCACTR VPBCBCTR A and C busbar B and C B and C Switch status of Q1 is valid (open or Switch status of Q2 and Q20 are valid (open or Switch status of Q7 is valid (open or Switch status of Q1 and Q20 are valid (open or closed Switch status of the bus coupler apparatuses (Q0, Q1 and Q2) connected between busbar A and B are valid (open or Switch status of the bus coupler apparatuses (Q0, Q1 and Q7) connected between busbar A and C are valid (open or Switch status of the bus coupler apparatuses (Q0, Q20 and Q7) connected between busbar B and C are valid (open or 0DQXIDFWXUHU $%%$XWRPDWLRQ7HFKQRORJ\3URGXFWV$% Control & Force Measurement Substation Automation SE Västerås Sweden Tel: +46 (0) Fax: +46 (0)

)HDWXUHV Interlocking function available for a double circuit breaker arrangement Preconfigured and tested interlocking function

,QWHUORFNLQJIRUGRXEOH &% ED\ Page 1 Revision: - Issued: November 2002 Data subject to change without notice )HDWXUHV Interlocking function available for a double circuit breaker arrangement Preconfigured