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?