Sel 411L - Page 980

P.16.52
SEL-411L Relay Protection Manual Date Code 20151029
Relay Word Bits
Row List
112 51TM09 Inverse-time Element 09 time dial setting outside of specified limits
112 51TC10 Inverse-time Element 10 enabled
112 51R10 Inverse-time Element 10 reset
112 51MM10 Inverse-time Element 10 pickup setting outside of specified limits
112 51TM10 Inverse-time Element 10 time dial setting outside of specified limits
87 Line Differential (Continued)
113 87CH1AM, 87CH2AM Channel asymmetry alarm for Channel 1–2
113 87CH1LP, 87CH2LP,
87CH3LP
Lost packet alarm for Channel 1–3
113 87CH1NB, 87CH2NB,
87CH3NB
Noise burst detected in Channel 1–3
114 87CH1BR, 87CH2BR,
87CH3BR
Temporary channel breaker detected in Channel 1–3
114 87CH1AL, 87CH2AL,
87CH3AL
Alarm asserted for Channel 1–3
115 E87DTT Direct transfer trip enabled
115 87DTT1, 87DTT2, 87DTT3 87L direct transfer trip received from remote Terminal 1–3
115 E87LPS Condition to switch to more conservative 87LP settings
115 E87LQS Condition to switch to more conservative 87LQ settings
115 E87LGS Condition to switch to more conservative 87LG settings
115 87LP 87L phase element operated in any phase
116 87DTTI Differential element distributed trip initiated
116 87STAG, 87STBG,
87STCG
Differential element single-pole trip, A-phase, B-phase, C-phase
116 87SPTS Differential element single-pole trip selected
116 87CHTRG Trigger bit for 87L recording
116 87TOK Internal time suitable for 87L time-based synchronization
116 87OP 87L operated: phase-, ground-, negative-sequence
117 87TESTL The 87L test has been initiated in the local relay
117 87TESTR The 87L test has been initiated in a remote relay
117 ECH1OUT, ECH2OUT Conditions to remove Channel 1–2 from service
117 87ROCTU Open circuit CT not suspected, system appears balanced
117 RSTOCT Open circuited CT detected
117 87OCTA, 87OCTB Open circuited CT detected A-phase, B-phase
118 87OCTC Open circuited CT detected C-phase
118 87OCT Open circuited CT detected
118 87ROCT Open circuit CT not suspected in any phase
118 87TST1, 87TST2, 87TST3 Received TEST bit from Channel 1–3 packet
118 87TMSUP Test mode supervision (SEL
OGIC equation)
118 87ROCTA Open circuit CT not suspected in A-phase
119 87ROCTB, 87ROCTC Open circuit CT not suspected in B-phase, C-phase
119 87TOUT Monitor 87L element response during 87L testing
119 87ALARM 87L communication quality watchdog alarm
Table 16.2 Row List of Relay Word Bits (Sheet 14 of 35)
Row Name Bit Description