Schweitzer Engineering Laboratories SEL-421-4 - Table 11.13 Relay Word Bits: Future Breaker Open-Phase Detector; Table 11.14 Relay Word Bits: Breaker 1 Failure

11.46
SEL-421 Relay Instruction Manual Date Code 20171021
Relay Word Bits
Row Lists
63 PTB B-Phase permissive trip received (ECOMM = POTT3)
63 PTC C-Phase permissive trip received (ECOMM = POTT3)
63 PTDRX Directional permissive trip received (ECOMM = POTTZD)
63 * Reserved
63 * Reserved
63 * Reserved
63 * Reserved
Table 11.13 Relay Word Bits: Future Breaker Open-Phase Detector
Row Name Description
64 * Reserved
Table 11.14 Relay Word Bits: Breaker 1 Failure (Sheet 1 of 2)
Row Name Description
65 BFI3P1 Circuit Breaker 1 three-pole circuit breaker failure initiation
65 BFIA1 Circuit Breaker 1 A-Phase circuit breaker failure initiation
65 BFIB1 Circuit Breaker 1 B-Phase circuit breaker failure initiation
65 BFIC1 Circuit Breaker 1 C-Phase circuit breaker failure initiation
65 BFI3PT1 Circuit Breaker 1 extended three-pole extended circuit breaker failure initiation
65 BFIAT1 Circuit Breaker 1 A-Phase extended circuit breaker failure initiation
65 BFIBT1 Circuit Breaker 1 B-Phase extended circuit breaker failure initiation
65 BFICT1 Circuit Breaker 1 C-Phase extended circuit breaker failure initiation
66 50FA1 Circuit Breaker 1 A-Phase current threshold exceeded
66 50FB1 Circuit Breaker 1 B-Phase current threshold exceeded
66 50FC1 Circuit Breaker 1 C-Phase current threshold exceeded
66 RT3P1 Circuit Breaker 1 three-pole retrip
66 RTA1 Circuit Breaker 1 A-Phase retrip
66 RTB1 Circuit Breaker 1 B-Phase retrip
66 RTC1 Circuit Breaker 1 C-Phase retrip
66 RTS3P1 Circuit Breaker 1 current-supervised three-pole retrip
67 RTSA1 Circuit Breaker 1 current-supervised A-Phase retrip
67 RTSB1 Circuit Breaker 1 current-supervised B-Phase retrip
67 RTSC1 Circuit Breaker 1 current-supervised C-Phase retrip
67 RT1 Circuit Breaker 1 retrip
67 FBFA1 Circuit Breaker 1 A-Phase circuit breaker failure
67 FBFB1 Circuit Breaker 1 B-Phase circuit breaker failure
67 FBFC1 Circuit Breaker 1 C-Phase circuit breaker failure
67 FBF1 Circuit Breaker 1 circuit breaker failure
68 50R1 Circuit Breaker 1 residual current threshold exceeded
68 BFIN1 Circuit Breaker 1 no current circuit breaker failure initiation
68 NBF1 Circuit Breaker 1 no current circuit breaker failure
Table 11.12 Relay Word Bits: Pilot Tripping Elements (Sheet 2 of 2)
Row Name Description