11.76
SEL-421 Relay
Instruction Manual
Date Code 20171021
Relay Word Bits
Row Lists
381
*
Reserved
381
*
Reserved
382
89CBL10
Disconnect 10 close block
382
89OSI10
Disconnect 10 open seal-in timer timed out
382
89CSI10
Disconnect 10 close seal-in timer timed out
382
89OIR10
Disconnect 10 open immobility timer reset
382
89CIR10
Disconnect 10 close immobility timer reset
382
89OBL10
Disconnect 10 open block
382
89ORS10
Disconnect 10 open reset
382
89CRS10
Disconnect 10 close reset
383
89OIM10
Disconnect 10 open immobility timer timed out
383
89CIM10
Disconnect 10 close immobility timer timed out
383
*
Reserved
383
*
Reserved
383
*
Reserved
383
*
Reserved
383
*
Reserved
383
*
Reserved
Table 11.69
Under/Overvoltage Elements (Sheet 1 of 2)
Row
Name
Description
384
271P1
Undervoltage Element 1, Level 1 asserted
384
271P1T
Undervoltage Element 1, Level 1 timed out
384
271P2
Undervoltage Element 1, Level 2 asserted
384
27TC1
Undervoltage Element 1, torque control
384
272P1
Undervoltage Element 2, Level 1 asserted
384
272P1T
Undervoltage Element 2, Level 1 timed out
384
272P2
Undervoltage Element 2, Level 2 asserted
384
27TC2
Undervoltage Element 2, torque control
385
273P1
Undervoltage Element 3, Level 1 asserted
385
273P1T
Undervoltage Element 3, Level 1 timed out
385
273P2
Undervoltage Element 3, Level 2 asserted
385
27TC3
Undervoltage Element 3, torque control
385
274P1
Undervoltage Element 4, Level 1 asserted
385
274P1T
Undervoltage Element 4, Level 1 timed out
385
274P2
Undervoltage Element 4, Level 2 asserted
385
27TC4
Undervoltage Element 4, torque control
386
275P1
Undervoltage Element 5, Level 1 asserted
386
275P1T
Undervoltage Element 5, Level 1 timed out
386
275P2
Undervoltage Element 5, Level 2 asserted
386
27TC5
Undervoltage Element 5, torque control
Table 11.68
Relay Word Bits: Bay Control Disconnect Timers and Breaker Status (Sheet 5 of 5)
Row
Name
Description
Summary of Contents for SEL-421-4
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