A 10-hp,4 pole,25Hz,3-phase induction motor is taking 9100 watts from the line.Core loss is 290 watts,stator copper loss is 568 watts, rotor copper loss is 445 watts and the friction and windage loss is 121 watts.Determine the output torque in newton-meters

A 10-hp,4 pole,25Hz,3-phase induction motor is taking 9100 watts from the line.Core loss is 290 watts,stator copper loss is 568 watts, rotor copper loss is 445 watts and the friction and windage loss is 121 watts.Determine the output torque in newton-meters

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

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

A 10-hp,4 pole,25Hz,3-phase induction motor is taking 9100 watts from the line.Core loss is 290
watts,stator copper loss is 568 watts, rotor copper loss is 445 watts and the friction and windage loss is
121 watts.Determine the output torque in newton-meters

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