A 10-hp, 550V, 60 Hz, 3-phase induction motor has starting torque of 160 percent of full load torque and a starting current of 425 percent of full load current. What voltage is required to limit the starting current to the full load current value?

A 10-hp, 550V, 60 Hz, 3-phase induction motor has starting torque of 160 percent of full load torque and a starting current of 425 percent of full load current. What voltage is required to limit the starting current to the full load current value?

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, 550V, 60 Hz, 3-phase induction motor has starting torque of 160 percent of full load
torque and a starting current of 425 percent of full load current. What voltage is required to
limit the starting current to the full load current value?

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