R.A.30
SEL-421 Relay Reference Manual Date Code 20111215
Relay Word Bits
Row List
36 LEADBK2 Lead circuit breaker = Circuit Breaker 2
36 FOLBK0 No follower circuit breaker
36 FOLBK1 Follower circuit breaker = Circuit Breaker 1
37 FOLBK2 Follower circuit breaker = Circuit Breaker 2
37 NBK0 No circuit breakers active in reclose scheme
37 NBK1 One circuit breaker active in reclose scheme
37 NBK2 Two circuit breakers active in reclose scheme
37 SP1CLS Single-pole Circuit Breaker 1 reclose supervision
(SEL
OGIC control equation)
37 SP2CLS Single-pole Circuit Breaker 2 reclose supervision
(SEL
OGIC control equation)
37 3P1CLS Three-pole Circuit Breaker 1 reclose supervision
(SEL
OGIC control equation)
37 3P2CLS Three-pole Circuit Breaker 2 reclose supervision
(SEL
OGIC control equation)
38 BK1CFT Circuit Breaker 1 close failure delay timed out
38 BK2CFT Circuit Breaker 2 close failure delay timed out
38 BK1CLSS Circuit Breaker 1 in close supervision state
38 BK2CLSS Circuit Breaker 2 in close supervision state
38 BK1CLST Circuit Breaker 1 close supervision timer timed out
38 BK2CLST Circuit Breaker 2 close supervision timer timed out
38 ULCL1 Unlatch closing for Circuit Breaker 1
(SEL
OGIC control equation)
38 ULCL2 Unlatch closing for Circuit Breaker 2
(SEL
OGIC control equation)
39 LLDB1 Live Line Dead Bus 1
39 LLDB2 Live Line Dead Bus 2
39 DLLB1 Dead Line Live Bus 1
39 DLLB2 Dead Line Live Bus 2
39 DLDB1 Dead Line Dead Bus 1
39 DLDB2 Dead Line Dead Bus 2
39 R3PTE Recloser three-pole trip enable
39 R3PTE1 Recloser three-pole trip enable Circuit Breaker 1
40 R3PTE2 Recloser three-pole trip enable Circuit Breaker 2
40 BK1RCIP Circuit Breaker 1 reclaim in progress (lockout state)
40 BK2RCIP Circuit Breaker 2 reclaim in progress (lockout state)
40 SPRCIP Single-pole reclaim in progress
40 3PRCIP Three-pole reclaim in progress
40 2POBK1 Two poles open Circuit Breaker 1
40 2POBK2 Two poles open Circuit Breaker 2
40 RST_79C Reset recloser shot count accumulators (SEL
OGIC control
equation)
41 SPSHOT0 Single-pole shot counter =0
Table A.9 Relay Word Bits: Reclosing Elements (Sheet 2 of 3)
Row Name Description
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