The useful full-load torque of 3-phase, 6-pole, 50-Hz induction motor is 242.84 Nm. The rotor emf is observed to make 90 cycles per minuteCalculate (a) motor output b) Cu loss in rotor (c) motor input and (d) efficiency if mechanical torque lost in windage and friction is 28.36 Nm and stator losses are 890W.

The useful full-load torque of 3-phase, 6-pole, 50-Hz induction motor is 242.84 Nm. The rotor emf is observed to make 90 cycles per minuteCalculate (a) motor output b) Cu loss in rotor (c) motor input and (d) efficiency if mechanical torque lost in windage and friction is 28.36 Nm and stator losses are 890W.

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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