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suppose MCC (Motor control center)panel work on field the
relay on this damage or not work and earth fault occurs in
this and no indication in relay panel given below. than MCB
trip or not and what effect the panel how find relay will
damage or not work.
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Answer Posted / chand
Check the supply to relay coil from either mcb or any positive from panel ,if the relay is energized check its contact (no/nc)from where we have the contact for indication .
If contact is not working change the relay base
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