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These days alternators are designed to have larger air gaps for __________

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These days alternators are designed to have larger air gaps for __________

(a) stable parallel operation

(b) higher stability limit

(c) sinusoidal mmf distribution

(d) all of the mentioned

The question was posed to me during an interview for a job.

The question is from Starting of Synchronous Motors in section Synchronous Motors of Electrical Machines

1 Answer

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Best answer
Right choice is (a) stable parallel operation

Explanation: Large air gap ensures more SCR value and better preformances.

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