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For a power system having induction motor loads, an overexcited synchronous motor is also attached. Then the over all power factor?

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For a power system having induction motor loads, an overexcited synchronous motor is also attached. Then the over all power factor?

(a) improves

(b) degrades

(c) becomes upf

(d) remains same

I had been asked this question by my college professor while I was bunking the class.

Origin of the question is Power Factor Correction by Synchronous Motors topic in portion Synchronous Motors of Electrical Machines

1 Answer

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Best answer
Right answer is (a) improves

Easy explanation: An over excited synchronous motor acts as a source of lagging reactive power and so the overall power factor improves.

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