Q. rotor?

(A) 30 revolution per minute
(B) 40 revolution per minute
(C) 60 revolution per minute
(D) 50 revolution per minute

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✅ Correct Answer: (D) 50 revolution per minute

Explanation: supply frequency=50 hz. no- load speed of motor = 1000 rpm. the full load speed of motor=950 rpm. since the no- load speed of the motor is almost 1000 rpm, hence synchronous speed near to 1000 rpm.

Published by Mr. Dubey ⭐ 111.54K Points at 17-Sep-2023 11:28 am in Electrical Drives and Controls (EDC)

Explanation by: Mr. Dubey

supply frequency=50 hz. no- load speed of motor = 1000 rpm. the full load speed of motor=950 rpm. since the no- load speed of the motor is almost 1000 rpm, hence synchronous speed near to 1000 rpm.

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Q. rotor?

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