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Do you know the faults occurs generally in motors and how
to rectify them?
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Answer Posted / shailza
general occuring faults in motor are:
1. inst. overcurrent
I(1)the current is equal to 8.5 times the nominal current
rectification-isolate breaker, take megger and check motor
T.B
2. Earth Fault I(0)
rectification-take megger
3. Stalling I1(t)
rectification- take no load trial with decoupling of motor
4. Thermal overload Ith
rectification- check current balance
5.phase imbalance I(2) Check motor T.B and take megger.
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