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Mechanism of Shaft End-to-End Voltage Generation by Asymmetry in an Inverter-Driven Motor.
- Source :
-
Electrical Engineering in Japan . Oct2013, Vol. 185 Issue 1, p48-56. 1p. 10 Diagrams, 2 Charts, 6 Graphs. - Publication Year :
- 2013
-
Abstract
- This paper deals with the shaft end-to-end voltage resulting from asymmetric stray capacitances in an inverter-driven motor. The origin of the voltage can be any of the following: a ground leakage current, dielectric breakdown in the bearings, and asymmetric stray capacitances on the stator windings. The third origin seems to be related to the differential-mode current, but the details of the relationship have not been clarified. In this study, differential-mode tests are carried out on an ungrounded motor rated at 400 V and 15 kW, and shaft end-to-end voltage generation by the asymmetric stray capacitances is theoretically discussed. Finally, a winding model is presented for the purpose of understanding the mechanism responsible for the shaft end-to-end voltage. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 185(1): 48-56, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22415 [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 04247760
- Volume :
- 185
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Electrical Engineering in Japan
- Publication Type :
- Academic Journal
- Accession number :
- 88310238
- Full Text :
- https://doi.org/10.1002/eej.22415