11.78
SEL-421 Relay Instruction Manual Date Code 20171021
Relay Word Bits
Row Lists
393 81D2T Level 2 definite-time frequency element delay
393 81D2OVR Level 2 overfrequency element pickup
393 81D2UDR Level 2 underfrequency element pickup
393 81D3 Level 3 definite-time frequency element pickup
393 81D3T Level 3 definite-time frequency element delay
393 81D3OVR Level 3 overfrequency element pickup
393 81D3UDR Level 3 underfrequency element pickup
394 81D4 Level 4 definite-time frequency element pickup
394 81D4T Level 4 definite-time frequency element delay
394 81D4OVR Level 4 overfrequency element pickup
394 81D4UDR Level 4 underfrequency element pickup
394 81D5 Level 5 definite-time frequency element pickup
394 81D5T Level 5 definite-time frequency element delay
394 81D5OVR Level 5 overfrequency element pickup
394 81D5UDR Level 5 underfrequency element pickup
395 81D6 Level 6 definite-time frequency element pickup
395 81D6T Level 6 definite-time frequency element delay
395 81D6OVR Level 6 overfrequency element pickup
395 81D6UDR Level 6 underfrequency element pickup
395 * Reserved
395 * Reserved
395 * Reserved
395 * Reserved
Table 11.71 Full-Cycle Mho and Quad Distance (Sheet 1 of 2)
Row Name Description
396 ENX2AG Enable A-Phase Ipa polarized reactance element
396 ENX2BG Enable B-Phase Ipb polarized reactance element
396 ENX2CG Enable C-Phase Ipc polarized reactance element
396 CNR2AG Control A-Phase Ipa polarized right blinder
396 CNR2BG Control B-Phase Ipb polarized right blinder
396 CNR2CG Control C-Phase Ipc polarized right blinder
396 CNR1AG Control A-Phase composite current polarized right blinder
396 CNR1BG Control B-Phase composite current polarized right blinder
397 CNR1CG Control C-Phase composite current polarized right blinder
398 ENX2AB Enable AB negative-sequence reactance element
398 ENX2BC Enable BC negative-sequence reactance element
398 ENX2CA Enable CA negative-sequence reactance element
398 CNR1AB Control AB positive-sequence right blinder
398 CNR1BC Control BC positive-sequence right blinder
398 CNR1CA Control CA positive-sequence right blinder
Table 11.70 Relay Word Bits: 81 Frequency Elements (Sheet 2 of 2)
Row Name Description