(a) With aid of suitable diagram, explain the losses and power-flow of an induction motor. (b) A three-phase, 60 Hz, six poles induction motor runs at a no-load speed of 1150 r/min and full-load speed is 1000 r/min. (i) Calculate the slip of the rotor at no-load and full-load conditions.

(a) With aid of suitable diagram, explain the losses and power-flow of an induction motor. (b) A three-phase, 60 Hz, six poles induction motor runs at a no-load speed of 1150 r/min and full-load speed is 1000 r/min. (i) Calculate the slip of the rotor at no-load and full-load conditions.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

(a)
With aid of suitable diagram, explain the losses and power-flow of an induction motor.
(b)
A three-phase, 60 Hz, six poles induction motor runs at a no-load speed of 1150 r/min and
full-load speed is 1000 r/min.
(i) Calculate the slip of the rotor at no-load and full-load conditions.

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