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Output horsepower with a rotational loss

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Reference no: EM132067093

A 4 pole, 60 Hz, 50 hp, 480 V wye connected synchronous motor has RA = 0 Xs = 2.5 ohms per phase and is operated at rated output horsepower with a rotational loss of 1000 watts and a separate 400 watt power source for the field current, which is adjusted to provide a power factor of 0.8 leading.

What is the

A. Developed power of the motor

B. Apparent power of the motor

C. Input current (in polar form) using the input phase voltage as reference

D. The value of Eaf (in polar form)

E. The total power in watts used by the motor

F. The efficiency

Reference no: EM132067093

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