NDLI: Correlation between trapping parameters and surface insulation strength of solid dielectric under pulse voltage in vacuum

Content Provider	IEEE Xplore Digital Library
Author	Wen-Bin Zhao Guan-Jun Zhang Yun Yang Zhang Yan
Copyright Year	1994
Abstract	As well known, the surface conditions of solid materials strongly affect the flashover phenomena under high electric field. The artificial doping ingredients could change the energy distribution and the density of electron and hole traps. The trapping parameters in the surface layer have some influences on the surface insulation strength. In order to adjust different trapping parameters, the composite materials of epoxy resin intermingled with aluminum hydroxide are prepared. The trapping parameters of the samples with different filler concentrations are investigated through the method of measuring the surface potential based on the isothermal current theory. The surface insulation performance in vacuum of each sample is tested according to the flashover voltage under pulsed excitation. Based on the experiment, the correlation between the trapping parameters and surface insulation strength is discussed and some novel models are presented
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
File Size	1148415
File Format	PDF
ISSN	10709878
Volume Number	14
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectrics and electrical insulation Solids Voltage Electron traps Flashover Dielectric materials Doping Charge carrier processes Composite materials Epoxy resins
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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