/PERATING INSTRUCTIONS
6+
6
# ' #
3 9 . # ( 2
9 % 3
. /
3YNCHRO CHECK BEFORE AUTOMATIC RECLOSURE
9%3
./
5 5
. /
9 % 3
$EAD BUS CHECK BEFORE AUTOMATIC RECLOSURE
./
9%3
5 5
. /
9 % 3
$EAD LINE CHECK BEFORE AUTOMATIC RECLOSURE
./
9%3
5 5
. /
9 % 3
$EAD LINE AND DEAD BUS CHECK BEFORE AUTOMATIC RE
CLOSURE
./
9%3
/ 6 % 2 2 ) $ %
. /
9 % 3
/VERRIDE OF ANY CHECK BEFORE AUTOMATIC RECLOSURE
./
9%3
4HE FURTHER RELEASE CONDITIONS FOR MANUAL CLOSING
ARE SET UNDER ADDRESSES TO 4HE SYN
CHRO CHECK FUNCTION FOR MANUAL CLOSING CAN BE INDI
VIDUALLY SWITCHED OFF OR ON UNDER ADDRESS
7HEN 39.-!.#, IS SWITCHED
/&&
NO CHECKS ARE
CARRIED OUT FOR MANUAL CLOSING
! SEPARATE FREQUENCY DIFFERENCE LIMIT CAN BE SET FOR
ASYNCHRONOUS SWITCHING AFTER MANUAL CLOSE COM
MAND !DDRESS -# $F39. DEFINES THE LIMIT
WITHIN WHICH THE FREQUENCY DIFFERENCE MUST LIE WHEN
THE NETWORKS ARE REGARDED AS SYNCHRONOUS !BOVE
THIS FREQUENCY DIFFERENCE ASYNCHRONOUS CLOSING IS
CARRIED OUT UNDER CONSIDERATION OF THE PHASE ANGLE
DIFFERENCE FREQUENCY DIFFERENCE AND THE CIRCUIT
BREAKER CLOSING TIME "ELOW THIS FREQUENCY DIFFER
ENCE THE SYNCHRO CHECK CONDITIONS AS SET UNDER
ADDRESSES AND ARE ONLY RELEVANT
4HE SETTING VALUE OF ADDRESS MUST LIE BELOW
THAT OF ADDRESS )F SET TO
0
ASYNCHRONOUS
SWITCHING IS SUPPRESSED FOR MANUAL CLOSURE
4HE FURTHER RELEASE CONDITIONS FOR MANUAL CLOSING
ARE SET UNDER ADDRESSES TO
-# 39.#(2 SYNCHRO CHECK THE CONDI
TIONS FOR SYNCHRONISM
5
F
AND
ARE CHECKED BEFORE
RECLOSURE
-# 55 DEAD BUS CHECK THE FEED
ER 5 MUST BE LIVE 5 REFER
TO ADDRESS THE BUS
BAR 5 MUST BE DEAD 5
REFER TO ADDRESS
-# 55 DEAD LINE CHECK THE FEED
ER 5 MUST BE DEAD 5 RE
FER ADDRESS THE BUS
BAR 5 MUST BE LIVE 5 RE
FER TO ADDRESS
-# 55 DEAD LINE AND DEAD BUS
CHECK THE FEEDER 5 AND
THE BUS BAR 5 MUST BOTH
BE DEAD 5 REFER TO AD
DRESS
-# /2)$%
MANUAL CLOSING IS RELEASED
WITHOUT ANY CHECK
4HE FIVE POSSIBLE RELEASE CONDITIONS ARE INDEPEN
DENT FROM EACH OTHER AND CAN BE COMBINED
