GE MiCOM P40 Agile Technical Manual

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Contents

Setting P44x/EN ST/Hb6MiCOM P40 Agile P442, P444 (ST) 4-41Menu text Default setting Setting range Step sizeMin MaxCB Time Lockout Alarm Disabled Alarm Disabled, Alarm EnabledSetting to activate the circuit breaker operating time lockout alarm.CB Time Lockout 0.2s 0.005s 0.5s 0.001sSetting for the circuit breaker operating time threshold which is set in relation to thespecified interrupting time of the circuit breaker. The relay can be set to lockout the auto-reclose function on reaching a second operations threshold.Fault Freq Lock Alarm Disabled Alarm Disabled, Alarm EnabledEnables the excessive fault frequency alarm.Fault Freq Count 10 0 9999 1Sets a circuit breaker frequent operations counter that monitors the number of operationsover a set time period.Fault Freq Time 3600s 0 9999s 1sSets the time period over which the circuit breaker operations are to be monitored. Shouldthe set number of trip operations be accumulated within this time period, an alarm can beraised. Excessive fault frequency/trips can be used to indicate that the circuit may needmaintenance attention (e.g. Tree-felling or insulator cleaning).Lockout reset No Yes / NoAllows the user to reset the Lockout condition counters.Reset lockout by CB Close CB Close / User interfaceSetting that determines if a lockout condition will be reset by a manual circuit breaker closecommand or via the user interface.Man Close RstDly 5 0.01 600 0.01The manual close time, time delay, that is used to reset a lockout automatically from amanual close.3.2 Circuit Breaker Control (“CB Control” menu)The relay includes the following options for control of a single circuit breaker:• Local tripping and closing, via the relay menu• Local tripping and closing, via relay opto-isolated inputs• Remote tripping and closing, using the relay communicationsThe following table shows the available settings and commands associated with circuitbreaker control. Depending on the relay model some of the cells may not be visible:Menu text Default setting Setting range Step sizeMin MaxCB CONTROLCB Control by Disabled Disabled, Local, Remote, Local+Remote,Opto, Opto+local, Opto+Remote,