Schweitzer Engineering Laboratories SEL-421-4 - Table 11.22 Relay Word Bits: Local Bits; Table 11.20 Relay Word Bits: Metering Elements; Table 11.21 Relay Word Bits: Open and Close; Table 11.19 Relay Word Bits: Battery Monitor

11.51
Date Code 20171021 Instruction Manual SEL-421 Relay
Relay Word Bits
Row Lists
Table 11.19 Relay Word Bits: Battery Monitor
Row Name Description
89 DC1F DC Monitor 1 fail alarm
89 DC1W DC Monitor 1 warning alarm
89 DC1G DC Monitor 1 ground fault alarm
89 DC1R DC Monitor 1 alarm for ac ripple
89 DC2F DC Monitor 2 fail alarm
89 DC2W DC Monitor 2 warning alarm
89 DC2G DC Monitor 2 ground fault alarm
89 DC2R DC Monitor 2 alarm for ac ripple
Table 11.20 Relay Word Bits: Metering Elements
Row Name Description
90 PDEM Phase current demand picked up
90 QDEM Negative-sequence demand current picked up
90 GDEM Zero-sequence demand current picked up
90 * Reserved
90 * Reserved
90 * Reserved
90 * Reserved
90 * Reserved
Table 11.21 Relay Word Bits: Open and Close
Row Name Description
91 CC2 Circuit Breaker 2 close command
91 OC2 Circuit Breaker 2 open command
91 CC1 Circuit Breaker 1 close command
91 OC1 Circuit Breaker 1 open command
91 * Reserved
91 * Reserved
91 * Reserved
91 * Reserved
Table 11.22 Relay Word Bits: Local Bits
Row Name Description
92 LB01–LB08 Local Bit 1–8
93 LB09–LB16 Local Bit 9–16
94 LB17–LB24 Local Bit 17–24
95 LB25–LB32 Local Bit 25–32