NDLI: Restrain effect of partial discharge spreading by insulator surface barriers

Content Provider	IEEE Xplore Digital Library
Author	Ishida, T. Nagao, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Toyohashi Univ. of Sci. & Technol., Toyohashi (Nagao, M.) \|\| Dept. of Electr. & Electron. Eng., Shizuoka Inst. of Sci. & Technol., Fukuroi (Ishida, T.)
Abstract	We have made researches on the internal partial discharge degradation phenomena of dielectric materials. In this paper, we investigate that the restrain effect of partial discharge spreading on the insulator surface by scratch or dielectric barriers. We prepared a few types of specimen for experiment to study the restrain effect of partial discharges on insulator. The 1 mm thick and 50 times 50 mm square plates made of polymethyl methacrylate (PMMA) were used for the experiments. One specimen had a scratch on the surface of PMMA. Another specimen had a couple of parallel polyimide tapes in the one side of the surface for the dielectric barriers. Each tape was pasted horizontally around center of the specimen and the interval of tapes was about 5 to 20 mm. From the experimental results, following conclusions were obtained. The dielectric barriers restrain the spreading of partial discharge on insulators surface. However, the restrain effects of barriers were weakened if the irradiating position of PD close to the dielectric barriers.
Starting Page	463
Ending Page	466
File Size	281461
Page Count	4
File Format	PDF
ISBN	9784886860057
DOI	10.1109/ISEIM.2008.4664587
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-07
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	The Institute of Electrical Engineers of Japan
Subject Keyword	Partial discharges Electric potential Surface discharges Polyimides Insulators Dielectrics Electrodes
Content Type	Text
Resource Type	Article

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