A 15-hp, 230 V single-phase synchronous motor is taking a current of 50 A at a power factor of 0.85 leading. Effective armature resistance is 0.2 ohm if this motor drives a mechanical load of 12 hp, determine its rotational losses.

A 15-hp, 230 V single-phase synchronous motor is taking a current of 50 A at a power factor of 0.85 leading. Effective armature resistance is 0.2 ohm if this motor drives a mechanical load of 12 hp, determine its rotational losses.

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.

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Branch of science that deals with the stationary and moving bodies under the influence of forces.

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