P.16.21
Date Code 20151029 Protection Manual SEL-411L Relay
Relay Word Bits
Alphabetic
CBADA Unavailability threshold exceeded for Mirrored Bits communications Channel A 259
CBADB Unavailability threshold exceeded for Mirrored Bits communications Channel B 260
CC1 Circuit Breaker 1 close command 93
CC2 Circuit Breaker 2 close command 93
CHSG Settings Group Change 319
CNR1AB Control AB positive-sequence right blinder 438
CNR1AG Control A-phase composite current polarized right blinder 436
CNR1BC Control BC positive-sequence right blinder 438
CNR1BG Control B-phase composite current polarized right blinder 436
CNR1CA Control CA positive-sequence right blinder 438
CNR1CG Control C-phase composite current polarized right blinder 437
CNR2AB Control AB negative-sequence right blinder 438
CNR2AG Control A-phase Ipa polarized right blinder 436
CNR2BC Control BC negative-sequence right blinder 438
CNR2BG Control B-phase Ipb polarized right blinder 456
CNR2CA Control CA negative-sequence right blinder 439
CNR2CG Control C-phase Ipc polarized right blinder 436
COMPRM Communications-assisted trip permission 53
CPS Trip logic C-phase selected 54
CVTBL CCVT transient blocking logic active 18
CVTBLH CCVT transient blocking logic active-high-speed elements 18
DC1F DC Monitor 1 fail alarm 51
DC1G DC Monitor 1 ground fault alarm 51
DC1R DC Monitor 1 alarm for ac ripple 51
DC1W DC Monitor 1 warning alarm 51
DC2F DC Monitor 2 fail alarm 51
DC2G DC Monitor 2 ground fault alarm 51
DC2R DC Monitor 2 alarm for ac ripple 51
DC2W DC Monitor 2 warning alarm 51
DDTO TW disturbance detector 404
DELAY Local current and voltage source delay logic 314
DFAULT Disables maximum/minimum metering and demand metering when SEL
OGIC control equation
FAULT asserts
49
DLDB1 Dead Line Dead Bus 1 44
DLDB2 Dead Line Dead Bus 2 44
DLLB1 Dead Line Live Bus 1 44
DLLB2 Dead Line Live Bus 2 44
DOKA Normal Mirrored Bits communications Channel A status 259
DOKB Normal Mirrored Bits communications Channel B status 260
DOSB Dependable Out-of-step Blocking asserted 24
DPF3_OK 3 phase displacement power factor OK 127
Table 16.1 Alphabetical List of Relay Word Bits (Sheet 21 of 39)
Name Bit Description Row
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