A-26 G650 Generator Protection & Control System GEK-113285A
A.1 LOGIC OPERANDS APPENDIX A
OPERANDS - G650 - MODEL FX - GX
INTERNAL SYSTEM STATUS (CONT.)
Breaker Status
BREAKER OPEN Breaker Opened
BREAKER CLOSED Breaker closed
BREAKER UNDEFINED Breaker undefined (52a and 52b have the same status)
Breaker Failure(Enhanced models only)
BKR FAIL INITIATE Breaker failure initiation
BKR FAIL NO
CURRENT
Breaker failure without current
BKR FAIL
SUPERVISION
Breaker failure 1st level (supervision – retrip)
BKR FAIL HISET Breaker failure 2nd level (high level)
BKR FAIL LOWSET Breaker failure 3rd level (low level)
INTERNAL ARC Internal arc
BKR FAIL 2nd STEP Breaker failure second step
Synchrocheck
Synchrocheck BLK INP Synchronism element block
Synchrocheck OP
Synchronsim condition (Dv, Dj and Df are within the set
range)
SYNCHK CLOSE PERM
Closing permission for the synchronism element:
(SYNCHK OP) OR (SYNCHK CON OP)
Synchrocheck COND
OP
Active if when it is set, any of the three following
conditions is met:
DL-DB OPERATION Dead line – dead bus condition
DL-LB OPERATION Dead line – live bus condition
LL-DB OPERATION Live line – dead bus condition
SLIP CONDITION Slip conditions are met
BUS FREQ > LINE
FREQ
Bus Frequency higher than line frequency
BUS FREQ < LINE
FREQ
Bus Frequency lower than line frequency
Default Channel (not used) Default Channel Channel not used
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