Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818



Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 1, Problem 10SQ
Textbook Problem

Select the best answer for each of the following.

Which of the following is not a protective feature of a motor controller?

a. Overload

b. Short circuit

c. Adjustable speed

d. Mechanical

To determine

Choose the correct option which does not represent a protective feature of a motor controller.

Explanation of Solution


The following are the protective features of the motor controller.

  • Overload protection
  • Over-field protection
  • Open-phase protection
  • Reversed-phase protection
  • Overtravel protection
  • Over speed protection
  • Reversed current protection
  • Mechanical protection
  • Short-circuit protection

From the protection features of the motor controller, it is clear that, the adju...

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