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9 RELAY COMMISSIONING
9.9 CONTACT OUTPUTS
9.9CONTACT OUTPUTS
Check that all the outputs are open.
Enable only 51P element , and set its pickup and time delay to the minimum values. Inject a current through phase A
terminals equal to 2 x In (phase) to trip the relay. Check that the trip output (terminals A5-A6) and auxiliary output OUT1
(terminals A7-B7) are closed, and the PICKUP, PHASE and TRIPLEDs light up.
Enable only 51G element, and set its pickup and time delay to the minimum values. Inject a current through phase A
terminals equal to 2 x In (phase) to trip the relay. Check that the trip output (terminals A5-A6) and auxiliary output OUT2
(terminals A7-B8) are closed, and the PICK UP, TIME OC and TRIP LEDs light up.
Enable only 50P element, and set its pickup to the minimum value. Inject a current through phase A terminals equal to 2 x
In (phase) to trip the relay. Check that the trip output (terminals A5-A6) and auxiliary output OUT3 (terminals B9-A7) are
closed, and the PICK UP, PHASE, INST and TRIP LEDs light up.
Enable only element 49, and set its pickup to the minimum value. Inject a current through phase A terminals equal to 2 x In
(phase) making the relay trip. Check that the trip output (terminals A5-A6) and auxiliary output OUT4 (terminals B10-A7)
are closed, and the PICK UP, THERMAL and TRIP LEDs light up.
Remove the Power Supply from the relay and check that the Alarm Output Contact (terminals B5-B6) is closed. Set the
power supply back to the relay terminals and check that the Alarm Output Contact is open.
9
GEK-106237P
MIFII Digital Feeder Relay
9-9
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