# Draw a line diagram of a three-speed acceleration control that uses compelling timing relays to prevent too rapid an acceleration.

### Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

Chapter
Section

### Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 35, Problem 7SQ
Textbook Problem
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## Draw a line diagram of a three-speed acceleration control that uses compelling timing relays to prevent too rapid an acceleration.

To determine

Sketch the line diagram for a three-speed acceleration control with compelling timing relays.

### Explanation of Solution

Figure 1 shows the line diagram of a three-speed acceleration control with compelling timing relays.

A three-speed acceleration control circuit is used to control the motor with three different speeds such as low speed, medium speed, and high speed. The three different control speeds are obtained by pushing a low, medium, and high speed push button. Generally, a motor starts with a low speed push button and runs with a slower speed. The motor can accelerate to medium speed and then to high speed by pushing the suitable push button to attain the respective speed...

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