Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818



Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 47, Problem 3SQ
Textbook Problem

Describe methods of feedback control for constant speed.

To determine

Explain about the feedback control techniques for constant speed.

Explanation of Solution

The feedback tachometer generator is used to regulate the DC amount that is flowing for high torque to the armature, slower than the base speeds. The output voltage of the feedback tachometer generator is proportional to its speed. The output voltage is directly connected to the SCR gate control circuit. If any of change in speed is detected, then it is corrected immediately and maintained at a preset constant speed. DC motors can be generally run at base speed or below to the base speed...

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