Page 137 - Electrical Equipment Handbook _ Troubleshooting and Maintenance
P. 137
SPEED CONTROL OF INDUCTION MOTORS
7.4 CHAPTER SEVEN
FIGURE 7.2 Variable-line-voltage speed control in an induction motor.
FIGURE 7.3 Speed control by varying the rotor resistance of a wound rotor
induction motor.
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.
