Answered: Explain the term air-gap power or power…

Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other?

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

1. Explain the term air-gap power or power developed in the
rotor and shaft power. How these terms are related to each
other?
2. Derive an expression for the rotor copper loss in terms of slip
and input to the rotor?
3. What are the various losses in an induction motor? On what
factors do they depend?
4. List the different types of stray load losses in an induction
motor.

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Name three factors that determine the torque produced by an induction motor.
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