NDLI: Installing insulation jacket to improve outdoor insulation performance of composite insulator

Content Provider	IEEE Xplore Digital Library
Author	Hongwei Mei Gongmao Peng Hanqi Dai Liming Wang Zhicheng Guan Linfeng Cao
Copyright Year	1994
Abstract	In the paper, a new approach is proposed to improve the outdoor insulation properties of transmission lines. It is achieved by installing the insulation jackets and additional grading rings onto transmission line conductors. The impact of insulation jacket parameters on the electrical field distribution along a 220 kV composite insulator was simulated by a finite element program assuming dry surface contamination. The corona inception voltage was measured on real composite insulators and the measurement results verified the conclusion from the simulation. Furthermore, the correlation between the insulation jackets' length and the contamination flashover voltage of composite insulators was studied. Based on the measurement and simulation results, the optimal insulation jacket parameters are suggested. In the last part of this paper, insulation jackets manufactured according to the optimal parameters are installed onto the transmission line conductor in the field. During one year of operation, the positive effect on the electric field distribution and the reliability of the installed insulation jackets have been confirmed.
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	1820674
File Format	PDF
ISSN	10709878
Volume Number	18
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-01
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 Conductors Electric fields Corona Clamps Capacitance contamination flashover voltage Composite insulator insulation jacket electric field coronainception voltage
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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