Answered: Why is a starting resistor needed to…

Engineering

Electrical Engineering

Why is a starting resistor needed to bring a motor up to speed?

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter32: Two-speed, One-winding (consequent Pole) Motor Controllers

Section: Chapter Questions

Problem 7SQ: In Figure 327, the motor cannot be started in high speed. Why?

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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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1 - Why is a starting resistor needed to bring a motor up to speed?

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