R.10.11
Date Code 20111215 Reference Manual SEL-421 Relay
Settings
Breaker Monitor Settings
Breaker Monitor Settings
Make Table 10.14 EB1MON and BK1TYP settings when Global setting
NUMBK := 1 or 2. make EB2MON and BK2TYP settings when Global
setting NUMBK := 2.
Label Prompt
Default
Value
IRIGC
a
a
When MFRMT := C37.118, IRIGC is forced to C37.118.
IRIG-B Control Bits Definition (None, C37.118) None
Table 10.17 Breaker Monitor Settings Categories
Settings Reference
Breaker Configuration Table 10.18
Breaker 1 Inputs Table 10.19
Breaker 2 Inputs Table 10.20
Breaker 1 Monitor (and Breaker 2 Monitor) Table 10.21
Breaker 1 Contact Wear
(and Breaker 2 Contact Wear)
Table 10.22
Breaker 1 Electrical Operating Time
(and Breaker 2 Electrical Operating Time)
Table 10.23
Breaker 1 Mechanical Operating Time
(and Breaker 2 Mechanical Operating Time)
Table 10.24
Breaker 1 Pole Scatter and Pole Discrepancy
(and Breaker 2 Pole Scatter and Pole Discrepancy)
Table 10.25
Breaker 1 Inactivity Time Elapsed
(and Breaker 2 Inactivity Time Elapsed)
Table 10.26
Breaker 1 Motor Running Time
(Breaker 2 Motor Running Time)
Table 10.27
Breaker 1 Current Interrupted
(Breaker 2 Current Interrupted)
Table 10.28
Table 10.18 Breaker Configuration
Label Prompt Default Value
EB1MON Breaker 1 Monitoring (Y, N) N
EB2MON Breaker 2 Monitoring (Y, N) N
BK1TYP Breaker 1 Trip Type (Single Pole = 1,
Three Pole = 3)
3
BK2TYP Breaker 2 Trip Type (Single Pole = 1,
Three Pole = 3)
3
NOTE: If you want to enable the
circuit breaker monitor on Circuit
Breaker 2, confirm that the relay is set
for two-circuit breaker operation;
global setting NUMBK must be 2. Once
you have set NUMBK := 2, you can set
the Circuit Breaker 2 monitor settings,
including EB2MON.
NOTE: See corresponding command
descriptions SET M on page R.9.42
and SHO M on page R.9.46 to set or
show the Breaker Monitor settings.