What is the purpose of the interlock (M) in the DC control circuit? | bartleby

Electric Motor Control

10th Edition

Herman

Publisher: CENGAGE L

ISBN: 9781133702818

Solutions

Chapter

Section

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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Chapter 40 Solutions

Electric Motor Control

Ch. 40 - What are the two basic functions of synchronous...Ch. 40 - What is the purpose of the interlock (M) in the DC...Ch. 40 - If all of the control circuits are ACand DC is not...Ch. 40 - When the rotor and stator fields lock into step,...Ch. 40 - Why is manual field application not completely...Ch. 40 - If a synchronizing attempt fails, what procedure...Ch. 40 - In Figure 402, approximately what is the...Ch. 40 - Why are the AC ammeter and DC meter necessary in...Ch. 40 - Why is the operation of the field contacts (F)...

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