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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 7, Problem 1SQ
Textbook Problem
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What are control relays?

To determine

Explain the concept of control relays.

Explanation of Solution

Discussion:

Control relays are magnetically held relays that are operated by electromagnets and principles of electromagnetics. These are used as auxiliary devices to control large motor starters, switch control circuits, contactor coils, and small loads.

Control relays are small magnetic switches that are used in the complex wiring system to operate simple branch circuits.

Conclusion:

Thus, the concept of control relays is explained.

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