### 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 49, Problem 1SQ
Textbook Problem
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## Why are magnetic brakes used?

To determine

Explain the reason for using magnetic brakes.

### Explanation of Solution

An electric brake also known as magnetic brake which consists of two friction surfaces or shoes that can be made to bear on a wheel on the motor shaft. Refer to Figure 49-1 in the textbook, the shoes are held by the spring tension on the wheel. Due to the friction between the wheel and shoes, the braking is achieved.

Magnetic brakes provide a smooth braking action and used for high inertia loads. Since these brakes apply and remove the braking pressure in either direction, it is recommended to use in cranes, hoists, elevators, and to increase the production of the industrial machinery. These magnetic brakes can limit the shock of braking.

Conclusion:

Thus, the reasons for using magnetic brakes are explained.

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