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Calculate the electrical angle for 6 pole machine. (θm represents mechanical angle)

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Calculate the electrical angle for 6 pole machine. (θm represents mechanical angle)

(a) 4×θm

(b) 5×θm

(c) 2×θm

(d) 3×θm

I got this question during an interview.

The doubt is from Solid State Controlled Drives in portion Introduction to Solid State Controlled Drives of Electric Drives

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Right answer is (d) 3×θm

Explanation: The electrical angle for 6 pole machine is 3×θm. One electrical angle is equal to 180° mechanical angle. θe=(P÷2)×θm.

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