Question

What's will happen if relative speed between rotating flux of static and rotor of the induction motor is zero?

Answer 1

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✔Ans = The speed of rotor gradually increases and tries to catch up with the speed of rotating magnetic field, but it fails to reach synchronous speed, because if it catches up with speed of magnetic field, relative speed becomes zero and hence no EMF will be induced in the rotor conductors, the torque becomes zero.

The torque will go to zero, so this can't happen unless the rotor is being driven. The input current would drop to essentially magnetizing ...

the rotating flux of stator and rotor of the induction motor is zero? a) The slip of the motor will be 5% b) The rotor will not run c).

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Answer 2

The speed of rotor gradually increases and tries to catch up with the speed of rotating magnetic field, but it fails to reach synchronous speed, because if it catches up with speed of magnetic field, relative speed becomes zero and hence no EMF will be induced in the rotor conductors, the torque becomes zero.

The torque will go to zero, so this can't happen unless the rotor is being driven. The input current would drop to essentially magnetizing ...

the rotating flux of stator and rotor of the induction motor is zero? a) The slip of the motor will be 5% b) The rotor will not run c).