DocumentCode
1163166
Title
A Novel Type of Smoothly Variable Speed, A-C Motor Having Widely Adjustable Power-Factor Characteristics
Author
Charlu, Paul K.
Volume
78
Issue
3
fYear
1959
fDate
4/1/1959 12:00:00 AM
Firstpage
407
Lastpage
413
Abstract
In this paper a new type of a-c motor, using d-c excitation to the stator and 2-phase a-c variable voltage to the armature through synchronously revolving brushes, is described. The new machine has smoothly adjustable speed characteristics of a d-c motor and power-factor (pf) control characteristics of a synchronous motor. The motor can also be used in single-phase systems. Again, it is possible to operate the machine with series-and compound-connected excitation in addition to using it as an autosynchronized converter, if additional stationary brushes are provided.
Keywords
AC motors; Acceleration; Brushes; Copper; Protection; Rotors; Stators; Synchronous motors; Temperature; Torque;
fLanguage
English
Journal_Title
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
Publisher
ieee
ISSN
0097-2460
Type
jour
DOI
10.1109/AIEEPAS.1959.4500342
Filename
4500342
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