GE P444

P
44x/EN ST/Hb6
Setting
(ST) 4
-40 MiCOM P40 Agile
P442, P444
3.1.2 CB condition monitoring
The following table, detailing the options available for the CB condition monitoring, includes
the setup of the current broken facility and those features which can be set to raise an alarm
or CB lockout.
Menu text Default setting
Setting range
Step size
Min Max
CB MONITOR SETUP
Broken I^ 2 1 2 0.1
This sets the factor to be used for the cumulative I^ counter calculation that monitors the
cumulative severity of the duty placed on the interrupter. This factor is set according to the
type of Circuit Breaker used.
I^ Maintenance Alarm Disabled Alarm Disabled, Alarm Enabled
Setting which determines if an alarm will be raised or not when the cumulative I^
maintenance counter threshold is exceeded.
I^ Maintenance 1000In^ 1In^ 25000In^ 1In^
Setting that determines the threshold for the cumulative I^ maintenance counter monitors.
I^ Lockout Alarm Disabled Alarm Disabled, Alarm Enabled
Setting which determines if an alarm will be raised or not when the cumulative I^ lockout
counter threshold is exceeded.
I^ Lockout 2000In^ 1In^ 25000In^ 1In^
Setting that determines the threshold for the cumulative I^ lockout counter monitor. Set that
should maintenance not be carried out, the relay can be set to lockout the autoreclose
function on reaching a second operations threshold.
N° CB Ops Maint Alarm Disabled Alarm Disabled, Alarm Enabled
Setting to activate the number of circuit breaker operations maintenance alarm.
N° CB Ops Maint 10 1 10000 1
Sets the threshold for number of circuit breaker operations maintenance alarm, indicating
when preventative maintenance is due.
N° CB Ops Lock Alarm Disabled Alarm Disabled, Alarm Enabled
Setting to activate the number of circuit breaker operations lockout alarm.
N° CB Ops Lock 20 1 10000 1
Sets the threshold for number of circuit breaker operations lockout. The relay can be set to
lockout the auto-reclose function on reaching a second operations threshold.
CB Time Maint Alarm Disabled Alarm Disabled, Alarm Enabled
Setting to activate the circuit breaker operating time maintenance alarm.
CB Time Maint 0.1s 0.005s 0.5s 0.001s
Setting for the circuit operating time threshold which is set in relation to the specified
interrupting time of the circuit breaker.