A 50 Hz, 8 pole, 3 phase induction motor has full load slip of 4%. The rotor resistance is 0.001 ohm/phase and standstill reactance is 0.005 ohm/phase. Find i) the ratio of maximum torque to full load torque ii) the speed at which maximum torque occurs.

A 50 Hz, 8 pole, 3 phase induction motor has full load slip of 4%. The rotor resistance is 0.001 ohm/phase and standstill reactance is 0.005 ohm/phase. Find i) the ratio of maximum torque to full load torque ii) the speed at which maximum torque occurs.

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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A 50 Hz, 8 pole, 3 phase induction motor has full load slip of 4%. The rotor resistance is 0.001 ohm/phase and standstill reactance is 0.005 ohm/phase. Find i) the ratio of maximum torque to full load torque ii) the speed at which maximum torque occurs.

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