1 A three-phase, four-pole, star-connected wound-rotor induction motor is to be controlled by terminal voltage variation using one triac in each supply line. Sketch a diagram of this arrangement and list the advantages and disadvantages of triac control compared with sinusoidal voltage variation using auto transformer.

1 A three-phase, four-pole, star-connected wound-rotor induction motor is to be controlled by terminal voltage variation using one triac in each supply line. Sketch a diagram of this arrangement and list the advantages and disadvantages of triac control compared with sinusoidal voltage variation using auto transformer.

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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