8.11
Date Code 20171021 Instruction Manual SEL-421 Relay
Settings
Breaker Monitor Settings
Table 8.28 Breaker 1 Electrical Operating Time (and Breaker 2 Electrical
Operating Time)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1ESTRT Electrical Slow Trip Alarm Threshold—BK1 (1–999 ms) 50
B1ESCLT Electrical Slow Close Alarm Threshold—BK1 (1–999 ms) 120
Table 8.29 Breaker 1 Mechanical Operating Time (and Breaker 2 Mechanical
Operating Time)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1MSTRT Mechanical Slow Trip Alarm Threshold—BK1 (1–999 ms) 50
B1MSCLT Mechanical Slow Close Alarm Threshold—BK1 (1–999 ms) 120
Table 8.30 Breaker 1 Pole Scatter and Pole Discrepancy (and Breaker 2 Pole
Scatter and Pole Discrepancy)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1PSTRT Pole Scatter Trip Alarm Threshold—BK1 (1–999 ms) 20
B1PSCLT Pole Scatter Close Alarm Threshold—BK1 (1–999 ms) 20
B1PDD Pole Discrepancy Time Delay—BK1 (1–9999 ms) 1400
E1PDCS Pole Discrepancy Current Supervision—BK1 (Y, N) N
Table 8.31 Breaker 1 Inactivity Time Elapsed (and Breaker 2 Inactivity Time
Elapsed)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1ITAT Inactivity Time Alarm Threshold—BK1 (N, 1–9999 days) 365
Table 8.32 Breaker 1 Motor Running Time (and Breaker 2 Motor Running Time)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1MRTIN Motor Run Time Contact Input—BK1 (SELOGIC Equation) NA
B1MRTAT Motor Run Time Alarm Threshold—BK1 (1–9999 seconds) 25
Table 8.33 Breaker 1 Current Interrupted (and Breaker 2 Current Interrupted)
Setting
a
a
Replace 1 with 2 in the setting and prompt for Breaker 2 settings.
Prompt Default Value
B1KAIAT kA Interrupt Capacity Alarm Threshold—BK1 (N, 1–100%) 90
B1MKAI Maximum kA Interrupt Rating—BK1 (1–999 kA) 50
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