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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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BuyFindarrow_forward

Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 40, Problem 2SQ
Textbook Problem
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What is the purpose of the interlock (M) in the DC control circuit?

To determine

Explain the purpose of interlock (M) in the DC control circuit.

Explanation of Solution

Interlock M contacts prevent the motor’s DC field from excitation before the motor is started; they will get close after AC control is energized. When the stop button is pressed in the AC side, it...

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