DocumentCode :
1416679
Title :
Electronic speed control of motors
Author :
Alexanderson, E. F. W. ; Edwards, M. A. ; Willis, C. H.
Author_Institution :
General Electric Company, Schenectady, N. Y.
Volume :
57
Issue :
6
fYear :
1938
fDate :
6/1/1938 12:00:00 AM
Firstpage :
343
Lastpage :
354
Abstract :
IN THE EARLY years of the electrical industry there was no acceptable a-c motor. After the development of the induction motor and the synchronous motor two machines were available which are unsurpassed in simplicity, reliability, and economy. These motors are, however, both inherently constant speed machines. In later years, a variety of a-c motors have been developed and a number of these have had adjustable or variable speed characteristics. There is, however, as yet, no adjustable-speed a-c motor so flexible as the Ward-Leonard combination, and there is still room for much improvement in adjustable speed a-c motors.
Keywords :
Electron tubes; Induction motors; Phase control; Rectifiers; Synchronous motors; Velocity control; Voltage control;
fLanguage :
English
Journal_Title :
Electrical Engineering
Publisher :
ieee
ISSN :
0095-9197
Type :
jour
DOI :
10.1109/EE.1938.6431329
Filename :
6431329
Link To Document :
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