DocumentCode
1032150
Title
Bearing current remediation options
Author
Schiferl, R.F. ; Melfi, M.J.
Author_Institution
Rockwell Autom., Greenville, SC, USA
Volume
10
Issue
4
fYear
2004
Firstpage
40
Lastpage
50
Abstract
The vast majority of bearing failures in electric motors and electric motor-driven equipment are due to mechanical and thermal causes. Bearing current in induction motor can result in premature bearing failure. Proper remediation methods depend upon a thorough understanding of the potential current paths in a given installation. Diagrams of current flow paths were presented here to illustrate potential issues. Proper grounding is a key to shunting currents away from paths that flow through motor or driven equipment bearings.
Keywords
failure analysis; induction motor drives; machine bearings; bearing current; current flow paths; electric motor-driven; electric motors; grounding; induction motor; potential current paths; premature bearing failure; remediation methods; Current measurement; Electric motors; Grounding; Induction motors; Insulation; Lubrication; Pollution measurement; Pulse width modulation inverters; Vibrations; Voltage;
fLanguage
English
Journal_Title
Industry Applications Magazine, IEEE
Publisher
ieee
ISSN
1077-2618
Type
jour
DOI
10.1109/MIA.2004.1311162
Filename
1311162
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