NDLI: Influence of metallic defects on the partial discharges at the interface between epoxy resin and silicone rubber

Content Provider	IEEE Xplore Digital Library
Author	Onogi, M. Ohki, Y. Takahashi, T. Takahashi, T. Okamoto, T.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. Eng. & Bioscience, Waseda Univ., Tokyo, Japan (Onogi, M.; Ohki, Y.)
Abstract	We have proposed a concept of an all solid insulated substation system as a next generation substation from a viewpoint of environmental protection. In order to make the system compact and its layout flexible, a compact connection system with a soft insulating material and a hard one has to be developed. There is a high possibility that the dielectric strength of such a connection system is decreased when a metallic defect such as a wire exists at its interface. Thus, we prepared samples that imitate the interface of the connection system and measured partial discharge inception voltages (PDIV) in both cases that a metal wire was present or not at the interface. When we put the metal wire along the direction of electric field, the PDIV decreases significantly with an increase in the length of the wire, while it decreases a little when the wire is along the equipotential line. The presence of air at the interface also reduces the PDIV.
Sponsorship	IEEJ Tech. Comm. on Dielectrics and Electr. Insulation IEEE Dielectrics and Electr. Insulation Soc
Starting Page	560
Ending Page	563
File Size	534790
Page Count	4
File Format	PDF
ISBN	488686063X
DOI	10.1109/ISEIM.2005.193430
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-05
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	IEEJ Industry Applications Society
Subject Keyword	Partial discharges Epoxy resins Rubber Wire Dielectrics and electrical insulation Solids Substation protection Dielectric materials Dielectric breakdown Dielectric measurements
Content Type	Text
Resource Type	Article

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