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Stator differential protection in alternators cannot detect which type of fault?

AThree-phase symmetrical short circuit
BPhase-to-phase short circuit
CPhase-to-earth fault near neutral
DInter-turn fault in the same phase winding

Explanation

Inter-turn faults on the same phase do not alter incoming and outgoing current magnitudes, making standard differential relays insensitive to them.

Submitted by: mcqstutor Team More Electrical Engineering MCQs →

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