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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 24, Problem 2SQ
Textbook Problem
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How is this principle applied to a DC starter?

To determine

Explain the working principle applied to a DC starter.

Explanation of Solution

Refer to Figure 24-2 in the Textbook which shows that the electrolytic capacitor C1 is charged through the rectifier. If the line voltage fluctuates or fails completely, the electrolytic capacitor can discharge through the control relay to maintain the coil as energized through which the starter can be maintained in a closed position.

For a DC starter, the capacitor can be charged using the DC supply...

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