The following test data are obtained from a 1/4 hp, 1φ, 120V, 60Hz, 1730rpm induction motor. Stator winding (main) resistance = 2.9 ohms Blocked rotor test: V =43 V, I=5A, P=140W No-load test: V =120 V, I=3.5A, P=125W a) Obtain the double revolving field equivalent circuit for the motor. b) Determine the rotational loss.

The following test data are obtained from a 1/4 hp, 1φ, 120V, 60Hz, 1730rpm induction motor. Stator winding (main) resistance = 2.9 ohms Blocked rotor test: V =43 V, I=5A, P=140W No-load test: V =120 V, I=3.5A, P=125W a) Obtain the double revolving field equivalent circuit for the motor. b) Determine the rotational loss.

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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