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A 200V, 10 hp, 4 poles, 60 Hz, Y-connected induction motor had full load slip of 5%. Then the rotor speed of the motor with respect to stator is?

A 200V, 10 hp, 4 poles, 60 Hz, Y-connected induction motor had full load slip of 5%. Then the rotor speed of the motor with respect to stator is? Correct Answer 1710 rpm

Synchronous speed, Ns = 120*f/P = 120*60/4 = 1800 rpm Rotor speed = (1-slip)*Ns = 0.95*1800 = 1710 rpm.

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