11.6
SEL-421 Relay Instruction Manual Date Code 20171021
Relay Word Bits
Alphabetical List
81D2T Level 2 definite-time frequency element delay 393
81D2UDR Level 2 underfrequency element pick up 393
81D3 Level 3 definite-time frequency element pickup 393
81D3OVR Level 3 overfrequency element pick up 393
81D3T Level 3 definite-time frequency element delay 393
81D3UDR Level 3 underfrequency element pick up 393
81D4 Level 4 definite-time frequency element pickup 394
81D4OVR Level 4 overfrequency element pick up 394
81D4T Level 4 definite-time frequency element delay 394
81D4UDR Level 4 underfrequency element pick up 394
81D5 Level 5 definite-time frequency element pickup 394
81D5OVR Level 5 overfrequency element pick up 394
81D5T Level 5 definite-time frequency element delay 394
81D5UDR Level 5 underfrequency element pick up 394
81D6 Level 6 definite-time frequency element pickup 395
81D6OVR Level 6 overfrequency element pick up 395
81D6T Level 6 definite-time frequency element delay 395
81D6UDR Level 6 underfrequency element pick up 395
89AL Any disconnect alarm 332
89AL01 Disconnect 1 alarm 332
89AL02 Disconnect 2 alarm 333
89AL03 Disconnect 3 alarm 334
89AL04 Disconnect 4 alarm 335
89AL05 Disconnect 5 alarm 336
89AL06 Disconnect 6 alarm 337
89AL07 Disconnect 7 alarm 338
89AL08 Disconnect 8 alarm 339
89AL09 Disconnect 9 alarm 340
89AL10 Disconnect 10 alarm 341
89AM01 Disconnect 1 N/O auxiliary contact 332
89AM02 Disconnect 2 N/O auxiliary contact 333
89AM03 Disconnect 3 N/O auxiliary contact 334
89AM04 Disconnect 4 N/O auxiliary contact 335
89AM05 Disconnect 5 N/O auxiliary contact 336
89AM06 Disconnect 6 N/O auxiliary contact 337
89AM07 Disconnect 7 N/O auxiliary contact 338
89AM08 Disconnect 8 N/O auxiliary contact 339
89AM09 Disconnect 9 N/O auxiliary contact 340
89AM10 Disconnect 10 N/O auxiliary contact 341
89BM01 Disconnect 1 N/C auxiliary contact 332
89BM02 Disconnect 2 N/C auxiliary contact 333
Table 11.1 Alphabetic List of Relay Word Bits (Sheet 6 of 34)
Name Description Row
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