Schweitzer Engineering Laboratories SEL-421-4 - Table 11.17 Relay Word Bits: Breaker Monitoring; Table 11.18 Relay Word Bits: RTD Status Bits

11.50
SEL-421 Relay Instruction Manual Date Code 20171021
Relay Word Bits
Row Lists
Table 11.17 Relay Word Bits: Breaker Monitoring
Row Name Description
83 BM1TRPA Circuit breaker monitor A-Phase trip, Circuit Breaker 1 (SELOGIC control equation)
83 BM1TRPB Circuit breaker monitor B-Phase trip, Circuit Breaker 1 (SEL
OGIC control equation)
83 BM1TRPC Circuit breaker monitor C-Phase trip, Circuit Breaker 1 (SEL
OGIC control equation)
83 BM1CLSA Circuit breaker monitor A-Phase close, Circuit Breaker 1 (SEL
OGIC control equation)
83 BM1CLSB Circuit breaker monitor B-Phase close, Circuit Breaker 1 (SEL
OGIC control equation)
83 BM1CLSC Circuit breaker monitor C-Phase close, Circuit Breaker 1 (SEL
OGIC control equation)
83 B1BCWAL Circuit Breaker 1 contact wear monitor alarm
83 B1MRTIN Motor run time contact input, Circuit Breaker 1 (SELOGIC control equation)
84 * Reserved
84 B1MSOAL Circuit Breaker 1 mechanical slow operation alarm
84 B1ESOAL Circuit Breaker 1 electrical slow operation alarm
84 B1PSAL Circuit Breaker 1 pole scatter alarm
84 B1PDAL Circuit Breaker 1 pole discrepancy alarm
84 B1BITAL Circuit Breaker 1 inactivity time alarm
84 B1MRTAL Circuit Breaker 1 motor running time alarm
84 B1KAIAL Circuit Breaker 1 interrupted current alarm
85 BM2TRPA Circuit breaker monitor A-Phase trip, Circuit Breaker 2 (SEL
OGIC control equation)
85 BM2TRPB Circuit breaker monitor B-Phase trip, Circuit Breaker 2 (SEL
OGIC control equation)
85 BM2TRPC Circuit breaker monitor C-Phase trip, Circuit Breaker 2 (SEL
OGIC control equation)
85 BM2CLSA Circuit breaker monitor A-Phase close, Circuit Breaker 2 (SEL
OGIC control equation)
85 BM2CLSB Circuit breaker monitor B-Phase close, Circuit Breaker 2 (SEL
OGIC control equation)
85 BM2CLSC Circuit breaker monitor C-Phase close, Circuit Breaker 2 (SEL
OGIC control equation)
85 B2BCWAL Circuit Breaker 2 contact wear monitor alarm
85 B2MRTIN Motor run time contact input, Circuit Breaker 2 (SELOGIC control equation)
86 * Reserved
86 B2MSOAL Circuit Breaker 2 mechanical slow operation alarm
86 B2ESOAL Circuit Breaker 2 electrical slow operation alarm
86 B2PSAL Circuit Breaker 2 pole scatter alarm
86 B2PDAL Circuit Breaker 2 pole discrepancy alarm
86 B2BITAL Circuit Breaker 2 inactivity time alarm
86 B2MRTAL Circuit Breaker 2 motor running time alarm
86 B2KAIAL Circuit Breaker 2 interrupted current alarm
Table 11.18 Relay Word Bits: RTD Status Bits
Row Name Description
87 RTD01ST–RTD08ST RTD status for Channel 1–8
88 RTDIN State of RTD contact input
88 RTDCOMF RTD communication failure
88 RTDFL RTD device failure
88 * Reserved
88 RTD09ST–RTD12ST RTD status for Channel 9–12