1. The useful full load torque of a 3-phase 4 pole, 50 Hz induction motor is 162.84 lb-ft.The rotor e.m.f is observed to make 60 cycles per minute. Calculate (a) Motor output (b) Copper loss in rotor (c) Motor input (d) Efficiency if mechanical toque lost in windage and friction is 22.46 lb-ft and stator losses are 850 W

1. The useful full load torque of a 3-phase 4 pole, 50 Hz induction motor is 162.84 lb-ft.The rotor e.m.f is observed to make 60 cycles per minute. Calculate (a) Motor output (b) Copper loss in rotor (c) Motor input (d) Efficiency if mechanical toque lost in windage and friction is 22.46 lb-ft and stator losses are 850 W

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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