NDLI: Modeling of AC flashover on ice-covered composite insulators with different shed configurations

Content Provider	IEEE Xplore Digital Library
Author	Shu, L. Wang, S. Jiang, X. Hu, Q. Liang, J. Yin, P. Chen, J.
Copyright Year	1994
Abstract	The shed configuration has an obvious effect on flashover performance of ice-covered composite insulators. Based on the flashover arc path, a “multi-arc, multi-ice-layer” mathematical model is proposed to predict AC flashover voltages of ice-covered composite insulators with different shed configurations during the melting period. The model takes into account two different arc paths across the tip of each un-bridge icicle. Moreover, the arc across the air gap is distinguished from the arc on the ice surface, and the residual ice layer resistance is divided into icicle resistance, arc root resistance and shed surface ice resistance. In order to verify this model, four kinds of 220 kV composite insulators with different shed configurations are tested under different icing conditions. The theoretical results from the model are found to be in good agreement with the experimental results.
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
Starting Page	2642
Ending Page	2651
Page Count	10
File Size	834840
File Format	PDF
ISSN	10709878
Volume Number	21
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Flashover Ice surface Resistance Mathematical model Atmospheric modeling predictive model. Shed configuration composite insulator icicle arc path AC flashover
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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