A 6pole, 3phase induction motor develops a power output of 22.38KW, including mechanical loss which totals 1.492KW at a speed of 950rpm on 550V, 50Hz mains. The power factor is 0.88. Calculate for this load a. The rotor copper loss b. The total input if the stator losses 2000W c. Efficiency

A 6pole, 3phase induction motor develops a power output of 22.38KW, including mechanical loss which totals 1.492KW at a speed of 950rpm on 550V, 50Hz mains. The power factor is 0.88. Calculate for this load a. The rotor copper loss b. The total input if the stator losses 2000W c. Efficiency

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

A 6pole, 3phase induction motor develops a power output of 22.38KW, including mechanical loss which totals 1.492KW at a speed of 950rpm on 550V, 50Hz mains. The power factor is 0.88.

Calculate for this load

a. The rotor copper loss

b. The total input if the stator losses 2000W

c. Efficiency

d. The number of complete cycles of the rotor electromotive force per minute

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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