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Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

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Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

(a) A

(b) B

(c) Both A and B

(d) Neither A nor B

I have been asked this question in a national level competition.

Asked question is from Principle of Operation topic in chapter Induction Machines of Electrical Machines

1 Answer

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Best answer
The correct answer is (a) A

Best explanation: As the air gap of motor A is more, it will require more flux to excitation and so the no load current.

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