Understanding Motor Controls
Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 8, Problem 1RQ
To determine

Identify if the component is normally open or normally closed when the component is to be used for the function of start.

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Explanation of Solution

There are circumstances where it is desirable to have more than one start/stop push button when operating a motor.

When a component is used for the function of start then the component is generally open and is connected parallel to the existing start button. If either of the start button is pressed, the circuit will be completed and the coil will be energized.

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