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An alternator with higher value of SCR has ____________

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An alternator with higher value of SCR has ____________

(a) better voltage regulation and higher stability limit

(b) poor voltage regulation and lower stability limit

(c) poor voltage regulation and higher stability limit

(d) better voltage regulation and lower stability limit

I had been asked this question by my school teacher while I was bunking the class.

Asked question is from Measurement of Xd and Xq in section Synchronous Machines of Electrical Machines

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Right answer is (a) better voltage regulation and higher stability limit

The best I can explain: SCR is directly proportional to voltage regulation. Even stability limit is directly proportional to SCR.

             SCR = 1/X.

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