NDLI: Investigations of modified nonlinear electrical materials for end corona protection in large rotating machines

Content Provider	IEEE Xplore Digital Library
Author	Schmerling, R. Jenau, F. Staubach, C. Pohlmann, F.
Copyright Year	2012
Description	Author affiliation: Institute of High, Voltage Technology, University of Dortmund, Germany (Schmerling, R.) \|\| Siemens AG Energy, Sector, Mülheim an der, Ruhr, Germany (Pohlmann, F.) \|\| Institute of High Voltage Technology, University of Dortmund, Germany (Jenau, F.) \|\| Siemens AG Energy Sector, Mülheim an der, Ruhr, Germany (Staubach, C.)
Abstract	Materials with nonlinear dielectric behavior are applied in rotating electrical machines for a defined control of the electrical field strength in the insulation system of stator end windings. To achieve better control of the electrical parameters a new filler material has been developed. Due to platelet shapes and coating with oxide layers the electrical behavior indicates a minimized spreading. The electrical resistance could be adjusted by different doping conditions of the oxide layers. Nevertheless, operational and environmental influences are not sufficiently investigated for operational application. In this paper the combined electrical, thermal and chemical properties under direct voltage stresses are worked out.
Starting Page	1
Ending Page	5
File Size	716478
Page Count	5
File Format	PDF
ISBN	9781467328548
e-ISBN	9781467328562
e-ISBN	9781467328555
DOI	10.1109/UPEC.2012.6398563
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-04
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulation thermal and chemical influence Materials Conductivity turbogenerator Temperature measurement operational working load Humidity nonlinear material Corona end corona protection stator end windings Current density Electrical machine
Content Type	Text
Resource Type	Article

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