DocumentCode
1523077
Title
Minimizing electric bearing currents in ASD systems
Author
Link
Author_Institution
ABB Autom. Inc., USA
Volume
5
Issue
4
fYear
1999
Firstpage
55
Lastpage
66
Abstract
During recent years, an increase in bearing failures has been seen in ASD-fed electric motors, as well as in gearboxes, and other connected machinery, caused by electric current flow through such bearings. The theories presented in this paper focus on bearing currents in ASDs of the voltage source pulse width modulated (PWM) type, for use with AC induction motors, although the concepts are applicable to various types AC and DC drive systems
Keywords
DC-AC power convertors; PWM invertors; failure analysis; induction motor drives; machine bearings; reliability; variable speed drives; ASD systems; bearing failures; electric bearing currents minimisation; induction motor drive; voltage source PWM invertors; AC motors; Induction motors; Manufacturing automation; National electric code; Pulse width modulation; Pulsed power supplies; Shafts; Space vector pulse width modulation; Variable speed drives; Voltage;
fLanguage
English
Journal_Title
Industry Applications Magazine, IEEE
Publisher
ieee
ISSN
1077-2618
Type
jour
DOI
10.1109/2943.771367
Filename
771367
Link To Document