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- Title
Transient characteristics of a tapped-winding capacitor motor.
- Authors
Tozune, Akira; Takeuchi, Toru; Saito, Masahiro
- Abstract
Tapped-winding capacitor motors are widely used for fans in air conditioners as speed adjusting motors. In tapped-winding capacitor motors, the burnout accidents of phase-shifting capacitors have been seen on occasion. The cause of such accidents is considered to be the transient capacitor current. In this paper, equations for calculating transient characteristics are derived for three types of tapped-winding capacitor motors. Based on these equations, transient characteristics are clarified in high- and low-speed winding connections. Further, from the design viewpoint, the effects of the turn ratio and capacitance of the capacitor on the transient characteristics are examined and a procedure for choosing the winding ratio and capacitance of the capacitor is suggested. Using this method, the transient current is shown to decrease by about 40%. © 2002 Wiley Periodicals, Inc. Electr Eng Jpn, 141(4): 69–77, 2002; Published online in Wiley InterScience (<URL>www.interscience.wiley.com</URL>). DOI 10.1002/eej.10063
- Subjects
CAPACITOR motors; AIR conditioning; ELECTRIC capacity; EQUATIONS; ELECTRIC transients; FANS (Machinery)
- Publication
Electrical Engineering in Japan, 2002, Vol 141, Issue 4, p69
- ISSN
0424-7760
- Publication type
Article
- DOI
10.1002/eej.10063