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

Transcription

1 ,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 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 modules DB_BUS_A, DB_LINE and DB_BUS_B are used for a line connected to a double circuit breaker arrangement according to figure 1. A (BB1) B (BB2) DB_BUS_A Q1 Q51 Q01 Q52 Q2 Q54 Q02 Q55 DB_BUS_B Q61 Q62 Q53 Q9 Q8 DB_LINE vsd Figure 1: Switchyard layout double circuit breaker

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. Two types of interlocking modules per double circuit breaker bay are defined. DB_LINE is the connection from the line to the circuit breaker parts that are connected to the busbar. DB_BUS_A/B is the connection from DB_LINE to one busbar and is used for each busbar. The figure Switchyard layout double circuit breaker shows the designations of the apparatuses that can be dealt with by these modules. )XQFWLRQEORFN xx vsd IB02- %86B$ Q01_OP Q01CLREL Q01_CL Q01CLITL Q1_OP Q61REL Q1_CL Q61ITL Q61_OP Q1REL Q61_CL Q1ITL Q51_OP Q51REL Q51_CL Q51ITL Q52_OP Q52REL Q52_CL Q52ITL Q1OPTR Q1CLTR Q15_OP VPQ1TR Q15_CL Q61EX1 Q61EX2 Q1EX1 Q1EX2 IA01- /,1( Q01_OP Q01_CL Q02_OP Q02_CL Q61_OP Q61_CL Q51_OP Q51_CL Q52_OP Q52_CL Q62_OP Q62_CL Q54_OP Q54_CL Q55_OP Q55_CL Q9_OP Q9_CL Q8_OP Q8_CL VOLT_OP VOLT_CL Q9EX1 Q9EX2 Q9EX3 Q9EX4 Q9EX5 Q9REL Q9ITL Q53REL Q53ITL Q8REL Q8ITL xx vsd

3 Page 3 IC01- %86B% Q02_OP Q02CLREL Q02_CL Q02CLITL Q62_OP Q62REL Q62_CL Q62ITL Q2_OP Q2REL Q2_CL Q2ITL Q54_OP Q54REL Q54_CL Q54ITL Q55_OP Q55REL Q55_CL Q55ITL Q2OPTR Q2CLTR Q25_OP VPQ2TR Q25_CL Q62EX1 Q62EX2 Q2EX1 Q2EX2 xx vsd,qsxwdqg RXWSXWVLJQDOV 7DEOH,QSXWVLJQDOVIRUWKH%86B$,%QQIXQFWLRQEORFN Q01_OP Signal is 1 if Q01 is open Q01_CL Signal is 1 if Q01 is closed Q1_OP Signal is 1 if Q1 is open Q1_CL Signal is 1 if Q1 is closed Q61_OP Signal is 1 if Q61 is open Q61_CL Signal is 1 if Q61 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 Signal is 1 if Q53 is open Signal is 1 if Q53 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 Signal is 1 if there is no transmission error from any bay containing earthing switches Q15 Signal is 1 if the interlocking programs in all bays containing earthing switches Q15 are running Q61EX1 Input for an external condition for apparatus Q61 Q61EX2 Input for an external condition for apparatus Q61 Q1EX1 Input for an external condition for apparatus Q1 Q1EX2 Input for an external condition for apparatus Q1

4 Page 4 7DEOH 2XWSXWVLJQDOVIRUWKH%86B$,%QQIXQFWLRQEORFN Q01CLREL Closing of Q01 is allowed Q01CLITL Closing of Q01 is forbidden Q61REL Switching of Q61 is allowed Q61ITL Switching of Q61 is forbidden Q1REL Switching of Q1 is allowed Q1ITL Switching of Q1 is forbidden Q51REL Switching of Q51 is allowed Q51ITL Switching of Q51 is forbidden Q52REL Switching of Q52 is allowed Q52ITL Switching of Q52 is forbidden Q1OPTR Signal is 1 if Q1 is open Q1CLTR Signal is 1 if Q1 is closed VPQ1TR Switch status of Q1 is valid (open or closed) 7DEOH Q01_OP Q01_CL Q02_OP Q02_CL Q61_OP Q61_CL Q51_OP Q51_CL Q52_OP Q52_CL Q62_OP Q62_CL Q54_OP Q54_CL Q55_OP Q55_CL Q9_OP Q9_CL Q8_OP Q8_CL VOLT_OP VOLT_CL Q9EX1 Q9EX2,QSXWVLJQDOVIRUWKH/,1(,$QQIXQFWLRQEORFN Signal is 1 if Q01 is open Signal is 1 if Q01 is closed Signal is 1 if Q02 is open Signal is 1 if Q02 is closed Signal is 1 if Q61 is open Signal is 1 if Q61 is closed Signal is 1 if Q51 is open Signal is 1 if Q51 is closed Signal is 1 if Q52 is open Signal is 1 if Q52 is closed Signal is 1 if Q62 is open Signal is 1 if Q62 is closed Signal is 1 if Q54 is open Signal is 1 if Q54 is closed Signal is 1 if Q55 is open Signal is 1 if Q55 is closed Signal is 1 if Q9 is open Signal is 1 if Q9 is closed Signal is 1 if Q53 is open Signal is 1 if Q53 is closed Signal is 1 if Q8 is open Signal is 1 if Q8 is closed There is no voltage on the line and no fuse failure There is voltage on the line or a VT (fuse) failure

5 Page 5 Q9EX3 Q9EX4 Q9EX5 7DEOH Q9REL Q9ITL Q53REL Q53ITL Q8REL Q8ITL 2XWSXWVLJQDOVIRUWKH/,1(,$QQIXQFWLRQEORFN Switching of Q9 is allowed Switching of Q9 is forbidden Switching of Q53 is allowed Switching of Q53 is forbidden Switching of Q8 is allowed Switching of Q8 is forbidden 7DEOH Q02_OP Q02_CL Q62_OP Q62_CL Q2_OP Q2_CL Q54_OP Q54_CL Q55_OP Q55_CL Q25_OP Q25_CL Q62EX1 Q62EX2 Q2EX1 Q2EX2,QSXWVLJQDOVIRUWKH%86B%,&QQIXQFWLRQEORFN IPWFRQW Signal is 1 if Q02 is open Signal is 1 if Q02 is closed Signal is 1 if Q62 is open Signal is 1 if Q62 is closed Signal is 1 if Q2 is open Signal is 1 if Q2 is closed Signal is 1 if Q54 is open Signal is 1 if Q54 is closed Signal is 1 if Q55 is open Signal is 1 if Q55 is closed Signal is 1 if Q53 on busbar A is open Signal is 1 if Q53 on busbar A is closed Signal is 1 if earthing switch Q25 on busbar A is open Signal is 1 if earthing switch Q25 on busbar A is closed Signal is 1 if there is no transmission error from any bay containing earthing switches Q25 Signal is 1 if the interlocking programs in all bays containing earthing switches Q25 are running Input for an external condition for apparatus Q62 Input for an external condition for apparatus Q62 Input for an external condition for apparatus Q2 Input for an external condition for apparatus Q2

6 Page 6 7DEOH 2XWSXWVLJQDOVIRUWKH%86B%,&QQIXQFWLRQEORFN Q02CLREL Closing of Q02 is allowed Q02CLITL Closing of Q02 is forbidden Q62REL Switching of Q62 is allowed Q62ITL Switching of Q62 is forbidden Q2REL Switching of Q2 is allowed Q2ITL Switching of Q2 is forbidden Q54REL Switching of Q54 is allowed Q54ITL Switching of Q54 is forbidden Q55REL Switching of Q55 is allowed Q55ITL Switching of Q55 is forbidden Q2OPTR Signal is 1 if Q2 is open Q2CLTR Signal is 1 if Q2 is closed VPQ2TR Switch status of Q2 is valid (open or closed) 0DQXIDFWXUHU $%%$XWRPDWLRQ7HFKQRORJ\3URGXFWV$% Control & Force Measurement Substation Automation SE Västerås Sweden Tel: +46 (0) Fax: +46 (0)