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A three phase, 50 Hz induction motor has a full load speed of 1440 rpm. Speed of the rotor field w.r.t. stator field is?(a) zero(b) 150 rad/s(c) 6.28 rad/s(d) 145 rad/sThis question was posed to me in examination.I'm obligated to ask this question of Rotor Frequency topic in division Induction Machines of Electrical Machines

Answer»

Correct answer is (a) zero

Best explanation: As both the rotor FIELD and stator FILE rotate at synchronous SPEED, the RELATIVE speed between them is zero.



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