Sel 411L - Page 934

P.16.6
SEL-411L Relay Protection Manual Date Code 20151029
Relay Word Bits
Alphabetic
79STRT Relay in start state 47
81D1 Level 1 Definite Time Frequency Element pickup 394
81D1OVR Level 1 Over Frequency Element pick up 394
81D1T Level 1 Definite Time Frequency Element delay 394
81D1UDR Level 1 Under Frequency Element pick up 394
81D2 Level 2 Definite Time Frequency Element pickup 395
81D2OVR Level 2 Over Frequency Element pick up 395
81D2T Level 2 Definite Time Frequency Element delay 395
81D2UDR Level 2 Under Frequency Element pick up 395
81D3 Level 3 Definite Time Frequency Element pickup 395
81D3OVR Level 3 Over Frequency Element pick up 395
81D3T Level 3 Definite Time Frequency Element delay 395
81D3UDR Level 3 Under Frequency Element pick up 395
81D4 Level 4 Definite Time Frequency Element pickup 396
81D4OVR Level 4 Over Frequency Element pick up 396
81D4T Level 4 Definite Time Frequency Element delay 396
81D4UDR Level 4 Under Frequency Element pick up 396
81D5 Level 5 Definite Time Frequency Element pickup 396
81D5OVR Level 5 Over Frequency Element pick up 396
81D5T Level 5 Definite Time Frequency Element delay 396
81D5UDR Level 5 Under Frequency Element pick up 396
81D6 Level 6 Definite Time Frequency Element pickup 397
81D6OVR Level 6 Over Frequency Element pick up 397
81D6T Level 6 Definite Time Frequency Element delay 397
81D6UDR Level 6 Under Frequency Element pick up 397
87ABK2 Second harmonic present in Phase-A differential current 121
87ABK5 Fifth harmonic present in Phase A differential current 121
87ALARM 87L communication quality watchdog alarm 119
87BBK2 Second harmonic present in Phase-B differential current 121
87BBK5 Fifth harmonic present in Phase B differential current 121
87BLK 87L current differential blocked 411
87BLKL 87L current differential blocked at local relay 411
87BLOCK Block local and remote 87L elements 405
87CBK2 Second harmonic present in Phase C differential current 121
87CBK5 Fifth harmonic present in Phase C differential current 121
87CCB Best possible charging current compensation (87CCB must = 87CCD+1) 97
87CCC Charging Current Compensation applied to local terminal currents using the local voltage
(87CCC must = 87CCB + 1)
97
87CCD Charging current compensation degraded (87CCD must = 87CCU+1) 97
87CCU Charging current compensation (87CCU, CCD, CCB and CCC must all be in the same long-
word)
97
87CH1AC Channel 1 is active 120
Table 16.1 Alphabetical List of Relay Word Bits (Sheet 6 of 39)
Name Bit Description Row