Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818

Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818


Chapter 3, Problem 17SQ
Textbook Problem

Select the best answer for each of the following.

An AC magnet may hum excessively due to

a. improper alignment.

b. foreign matter between contact surfaces.

c. loose laminations.

d. all of the above.

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Chapter 3 Solutions

Electric Motor Control

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