R.A.10
SEL-421 Relay Reference Manual Date Code 20111215
Relay Word Bits
Alphabetic
F32P Forward phase directional declaration 20
F32Q Forward negative-sequence phase directional declaration 20
F32QG Forward negative-sequence ground directional element 22
F32V Forward voltage polarized zero-sequence directional element 22
FAST1 fs1 > fp 31
FAST2 fs2 > fp 33
FBF1 Circuit Breaker 1 circuit breaker failure 59
FBF2 Circuit Breaker 2 circuit breaker failure 65
FBFA1 Circuit Breaker 1 A-phase circuit breaker failure 59
FBFA2 Circuit Breaker 2 A-phase circuit breaker failure 65
FBFB1 Circuit Breaker 1 B-phase circuit breaker failure 59
FBFB2 Circuit Breaker 2 B-phase circuit breaker failure 65
FBFC1 Circuit Breaker 1 C-phase circuit breaker failure 59
FBFC2 Circuit Breaker 2 C-phase circuit breaker failure 65
FIDEN Fault identification logic enabled 43
FOA1 Circuit Breaker 1 A-phase flashover detected 61
FOA2 Circuit Breaker 2 A-phase flashover detected 67
FOB1 Circuit Breaker 1 B-phase flashover detected 61
FOB2 Circuit Breaker 2 B-phase flashover detected 67
FOBF1 Circuit Breaker 1 flashover detected 62
FOBF2 Circuit Breaker 2 flashover detected 68
FOC1 Circuit Breaker 1 C-phase flashover detected 62
FOC2 Circuit Breaker 2 C-phase flashover detected 68
FOLBK0 No follower circuit breaker 36
FOLBK1 Follower circuit breaker = Circuit Breaker 1 36
FOLBK2 Follower circuit breaker = Circuit Breaker 2 37
FOP1_01–
FOP1_08
Fast Operate Output Control Bits for Port 1, 01–08 300
FOP1_09–
FOP1_16
Fast Operate Output Control Bits for Port 1, 09–16 301
FOP1_17–
FOP1_24
Fast Operate Output Control Bits for Port 1, 17–24 302
FOP1_25–
FOP1_32
Fast Operate Output Control Bits for Port 1, 25–32 303
FOP2_01–
FOP2_08
Fast Operate Output Control Bits for Port 2, 01–08 304
FOP2_09–
FOP2_16
Fast Operate Output Control Bits for Port 2, 09–16 305
FOP2_17–
FOP2_24
Fast Operate Output Control Bits for Port 2, 17–24 306
FOP2_25–
FOP2_32
Fast Operate Output Control Bits for Port 2, 25–32 307
FOP3_01–
FOP3_08
Fast Operate Output Control Bits for Port 3, 01–08 308
Table A.1 Alphabetic List of Relay Word Bits (Sheet 10 of 21)
Name Description
Row
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