P.16.22
SEL-411L Relay Protection Manual Date Code 20151029
Relay Word Bits
Alphabetic
DPFA_OK A-phase displacement power factor OK 127
DPFB_OK B-phase displacement power factor OK 127
DPFC_OK C-phase displacement power factor OK 127
DST Daylight Savings Time 322
DSTP Daylight Savings Time Pending 322
DSTRT Directional start element picked up 60
DTA Direct transfer trip A-Phase (SEL
OGIC control equation) 57
DTB Direct transfer trip B-Phase (SEL
OGIC control equation) 57
DTC Direct transfer trip C-Phase (SEL
OGIC control equation) 57
DTR Direct transfer trip received 53
DUMMY Reserved 323
E3PT Three-pole trip enable 53
E3PT1 Circuit Breaker 1 three-pole trip enable 53
E3PT2 Circuit Breaker 2 three-pole trip enable 53
E87DTT Direct Transfer Trip Enabled 115
E87LGS Condition to switch to more conservative 87LG settings. 115
E87LPS Condition to switch to more conservative 87LP settings. 115
E87LQS Condition to switch to more conservative 87LQ settings. 115
EAFSRC Alternate frequency source (SEL
OGIC control equation) 50
ECH1OUT Conditions to remove Channel 1 from service 117
ECH2OUT Conditions to remove Channel 2 from service 117
ECTT Echo conversion to trip signal 58
ECTTA A-phase echo conversion to trip signal (ECOMM = POTT3) 62
ECTTB B-phase echo conversion to trip signal (ECOMM = POTT3) 62
ECTTC C-phase echo conversion to trip signal (ECOMM = POTT3) 62
EKEY Echo received permissive trip signal 58
EKEYA A-phase echo received permissive trip signal (ECOMM = POTT3) 62
EKEYB B-phase echo received permissive trip signal (ECOMM = POTT3) 62
EKEYC C-phase echo received permissive trip signal (ECOMM = POTT3) 62
EN Relay Enabled 0
ENX2AB Enable AB negative-sequence reactance element 438
ENX2AG Enable A-phase Ipa polarized reactance element 436
ENX2BC Enable BC negative-sequence reactance element 438
ENX2BG Enable B-phase Ipb polarized reactance element 436
ENX2CA Enable CA negative-sequence reactance element 438
ENX2CG Enable C-phase Ipc polarized reactance element 436
ER Event report trigger equation (SEL
OGIC control equation) 50
ESTUB Enable Stub Bus Protection 94
ETL1–ETL3 External Time Lock Channel 1–3 410
EVELOCK Lock DNP Events 312
EWDSEC Watchdog Security Enabled 410
Table 16.1 Alphabetical List of Relay Word Bits (Sheet 22 of 39)
Name Bit Description Row
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