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9 RELAY COMMISSIONING
9.11 PHASE IOC HIGH SETTING ELEMENT (50P1)
9.11PHASE IOC HIGH SETTING ELEMENT (50P1)
Enable only 50P1 element.
Set time delay as needed. If the time delay is set to 0 sec., the relay operating time will be between 10 to 50 ms. Also, the
customer has to test pickup.
With 0.9 times the pickup current the relay should not trip.
With 1.1 times the pickup current the relay should trip in between 10 to 50 ms.
With 4 times the pickup current the relay should trip in between 10 to 40 ms.
The test should be carried out for phases A, B and C.
9
GEK-106237P
MIFII Digital Feeder Relay
9-11
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