A nema design b 3-phase 60 hz induction motor is rated 60


A NEMA design B, 3-phase, 60 Hz, Induction motor is rated: 60 HP, 460V, 71A, 93.0% efficiency, NEMA code G, 1180 RPM:

A. What is the power factor of the motor?

B. What is power factor of the motor when operating at 1/2 load?

Assume the reative power is the same as the in part (a) and that the efficiency is still 93 %.

C. How many poles does this motor have?

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Electrical Engineering: A nema design b 3-phase 60 hz induction motor is rated 60
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