/PERATING INSTRUCTIONS
6+
6
# ' #
3ETTINGS FOR AUTO RECLOSURE
ADDRESS BLOCK
!UTO RECLOSE FUNCTION IS EFFECTIVE ONLY IF CONFIGURED
AS
%8)34
UNDER ADDRESS REFER TO 3ECTION
7ITH THE !2 FUNCTION GENERALLY DISTINCTION IS MADE
BETWEEN THE FIRST !2 CYCLE IDENTIFIED IN THE FOLLOW
ING WITH 2!2 RAPID AUTO RECLOSURE AND FURTHER
!2 CYCLES WITH MULTI SHOT AUTO RECLOSURE IDENTI
FIED IN THE FOLLOWING WITH $!2 DELAYED AUTO RECLO
SURE 4HE ABOVE IDENTIFICATIONS ARE REGARDLESS
WHETHER THE DEAD TIMES ARE REALLY RAPID OR
DELAYED 3ETTING ADDRESSES TO ARE COM
MON FOR ALL TYPES OF AUTO RECLOSURE
7HEN SWITCHING MANUALLY ON A DEAD FAULT IT IS NOR
MALLY DESIRED THAT THE SHORT CIRCUIT PROTECTION TRIPS
INSTANTANEOUSLY AND THE !2 FUNCTION IS BLOCKED
4HUS ADDRESS SHOULD REMAIN IN POSITION
-!.#,",
9%3
4HE RECLAIM TIME 4 2%#,!)- ADDRESS IS THE
TIME PERIOD AFTER WHICH THE NETWORK FAULT IS SUP
POSED TO BE TERMINATED AFTER A SUCCESSFUL AUTO RE
CLOSE CYCLE ! RENEWED TRIP OF THE FEEDER PROTECTION
WITHIN THIS TIME INCREMENTS THE !2 COUNTER WHEN
MULTI SHOT !2 IS USED SO THAT THE NEXT !2 CYCLE
STARTS IF NO FURTHER !2 IS ALLOWED THE LAST !2 IS TREATED
AS UNSUCCESSFUL
4HE LOCK OUT TIME 4",/#+ $9. ADDRESS IS
THE TIME PERIOD DURING WHICH AFTER AN UNSUCCESSFUL
AUTO RECLOSURE FURTHER RECLOSURES BY 6+ ARE
BLOCKED )F THE MANUAL CLOSE COMMAND IS LED VIA THE
6+ THEN THIS WILL BE BLOCKED ALSO 4HIS TIME MUST
BE LONGER THAN THE RENEWED READINESS FOR OPERATION
OF THE CIRCUIT BREAKER UNLESS THE #" IS SUPERVISED IN
THE RELAY SEE BELOW ADDRESS )F THIS TIME IS SET
TO
0
BREAKER CLOSE COMMANDS ARE LOCKED )N THIS
CASE SWITCHING CAN BE UNLOCKED ONLY WHEN THE
BINARY INPUT
!2 2ESET
&.O
IS ENERGIZED )T
MUST BE ENSURED IN THIS CASE THAT THIS FUNCTION IS AL
LOCATED TO A BINARY INPUT
4HE SET TIME FOR 4",/#+ -# ADDRESS MUST
COVER THE TIME FOR SAFE CLOSING AND OPENING OF THE CIR
CUIT BREAKER S TO S )F THE FEEDER PROTECTION DE
TECTS A FAULT WITHIN THIS TIME THREE POLE FINAL TRIP
COMMAND IS ISSUED AND RECLOSURE IS BLOCKED PRO
VIDED -!.#,", ADDRESS SEE ABOVE IS
SWITCHED
/.
4HE DURATION OF THE CLOSING COMMAND HAS ALREADY
BEEN SET WHEN SETTING THE GENERAL PARAMETERS AD
DRESS 3ECTION
! PREREQUISITE FOR INITIATION OF THE !2 FUNCTION IS THAT
THE CIRCUIT BREAKER IS READY FOR AT LEAST ONE TRIP CLOSE
CYCLE WHEN THE FEEDER PROTECTION TRIPS 4HIS INFORMA
TION HAS TO BE GIVEN TO THE RELAY VIA THE BINARY INPUT
#" READY
&.O
)N CASE SUCH INFORMATION IS
NOT AVAILABLE FROM THE #" CIRCUIT INTERROGATION OF
#" READY
CAN BE SUPPRESSED BY SETTING THE PA
RAMETER #" 42)0
./
IE #" INTERROGATION FOR
ST TRIP OTHERWISE RECLOSURE WOULD NOT BE POSSIBLE
AT ALL
!DDITIONALLY IT IS POSSIBLE TO INTERROGATE READINESS OF
THE CIRCUIT BREAKER BEFORE EACH FURTHER RECLOSE COM
MAND OR BEFORE EVERY OTHER RECLOSE COMMAND 3ET
TING IS MADE IN ADDRESS
#" #,/3% #" 7)4( %!#( !2 INTERROGATION IS
MADE BEFORE EACH RECLOSE COM
MAND
#" #,/3% #" .%6%2 INTERROGATION IS NOT
MADE OR ONLY AT THE MOMENT OF THE
FIRST TRIP COMMAND AS PARAMETERIZED
UNDER ADDRESS
#" #,/3% #" 7)4( ND !2 INTERROGATION IS
MADE BEFORE EVERY OTHER RECLOSE
COMMAND IE BEFORE THE ND TH
ETC EVERY TRIP CLOSE CYCLE IS VALID
REGARDLESS WHETHER IT IS 2!2 OR $!2
)N ORDER TO MONITOR THE REGENERATION TIME OF THE CIR
CUIT BREAKER A SPECIAL CIRCUIT BREAKER SUPERVISION
TIME 4 #" 3506 CAN BE SET UNDER ADDRESS
4HIS TIME SHOULD BE SET SLIGHTLY HIGHER THAN THE RE
GENERATION TIME OF THE BREAKER AFTER A TRIP CLOSE
CYCLE )F THE CIRCUIT BREAKER IS NOT YET READY AFTER THIS
TIME RECLOSURE IS SUPPRESSED
&INALLY ADDRESS DETERMINES FOR WHICH RECLOSE
CYCLES SYNCHRONISM OR VOLTAGE SHALL BE CHECKED BY
THE SYNCHRO CHECK FUNCTION IF FITTED AND USED )N
THE CASES WHICH ARE SET THERE RECLOSURE IS BLOCKED
AS LONG AS THE CONDITIONS AS SET FOR THE SYNCHRO
CHECK FUNCTION ARE NOT FULFILLED
