A 2-pole, 3-phase, ______ Hz induction motor is operating at a speed of 550 rpm. The frequency of the rotor current of the motor in Hz is 2.

A 2-pole, 3-phase, ______ Hz induction motor is operating at a speed of 550 rpm. The frequency of the rotor current of the motor in Hz is 2. Correct Answer 9.37

Given a number of poles = 2. Rotor speed is 550 rpm. Ns=120×f÷P=120×f÷2 = 60f rpm. S=Ns-Nr÷Ns. F2=sf. S=F2÷f. Supply frequency is 9.37 Hz.
Bissoy MCQ

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