What are the differences between singly excited and doubly excited sys – InterviewSolution

InterviewSolution

1.	What are the differences between singly excited and doubly excited systems?
Answer» Single EXCITED - only stator is fed with 3 ph balanced supply, the stator field starts rotating with synchronous speed INDUCING a rotating field in ROTOR. And as rotor is shorted it starts rotating in the same direction following LENZ's law. Doubly excited - Both stator and rotor are fed with 3 ph supply.

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