PKR39809-02

NPS Alarm Operation

When NPS Alarm is selected, an NPS fault will not cause a protection trip. A protection pickup according to the Global NPS Setting Current setting and timing according to the NPS protection settings for the active trip will occur. But instead of a protection trip when the time to trip expires, the Event Log will record: NPS Alarm.

Other events normally associated with a protection pickup:

  • Pickup NPS

  • Protection Group Active

Will also be logged. And when the fault is removed:

  • Protection Reset

  • NPS Max Current

Will be logged.

NPS Mode Alarm is also logged when NPS Alarm is selected.

The NPS Alarm can be mapped to a Status Lamp or QAK lamp on the flexVUE O.I.

The NPS Alarm is also available for mapping through the Configurable Protocol Tool for reporting via SCADA.

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