MindTap for Herman's Understanding Motor Controls, 4th Edition [Instant Access], 2 terms
MindTap for Herman's Understanding Motor Controls, 4th Edition [Instant Access], 2 terms
4th Edition
ISBN: 9781337798754
Author: Herman; Stephen L.
Publisher: Cengage Learning US
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Chapter 7, Problem 1RQ

Refer to the circuit shown in Figure 7-10. If wire number 11 were disconnected at the normally open auxiliary M contact, how would the circuit operate?

Chapter 7, Problem 1RQ, Refer to the circuit shown in Figure 7-10. If wire number 11 were disconnected at the normally open

Figure 7-10 Numbers are placed beside all components.

Expert Solution & Answer
Check Mark
To determine

Identify how the circuit would operate.

Explanation of Solution

In the given circuit, the auxiliary contact M is connected in parallel to the start button. The operation of the circuit after disconnecting the auxiliary contact M will be as follows:

  • When the start button is pressed, the coil gets energized and the circuit is closed.
  • After the start button is released, there is no closed circuit, and this leads to an open circuit.

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