Journal ArticleDOI
Survey on the use of non-ceramic composite insulators
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In this article, the authors summarized the results of a questionnaire on current status of non-ceramic (composite) insulators in the world conducted by the NCS Technical Committee, Japan.Abstract:
This paper summarizes the result of the questionnaire on current status of non-ceramic (composite) insulators in the world conducted by the Non-ceramic (composite) Insulators Technical Committee, Japan. Current use status, reasons for use, maintenance, failure occurrence and research activity of 16 responding utilities are described. About 80% of the responding utilities answered that they would actively increase the use of non-ceramic (composite) insulators in the future. It is anticipated that the market for these insulators will keep expanding.read more
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Journal ArticleDOI
Modern outdoor insulation - concerns and challenges
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Diagnostic Methods for Outdoor Polymeric Insulators
TL;DR: In this article, a review on recognized composite insulator faults and methods for their detection is provided, as well as diagnostic methods and tools for determining the quality of composite insulators.
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Ageing of silicone rubber insulators in coastal and inland tropical environment
TL;DR: In this paper, the performance of silicone rubber composite and hybrid silicone-ceramic insulators was evaluated in laboratory by measurements of leakage currents under clean fog conditions and of wet flashover voltage.
Journal ArticleDOI
Leakage current characterization for estimating the conditions of ceramic and polymeric insulating surfaces
Seiji Kumagai,Noboru Yoshimura +1 more
TL;DR: In this paper, a wavelet transform was used to detect the zero-cross point of the base current at 50 Hz without the need for voltage information, and the source information regarding the distortion level of the current half-wave separated by the zerocross point and a time lag to onset in current attributable to arcs were used in order to obtain the above three components.
Journal ArticleDOI
Insulator Selection for AC Overhead Lines With Respect to Contamination
A. C. Baker,M. Farzaneh,R.S. Gorur,Stanislaw Gubanski,R.J. Hill,George G. Karady,H.M. Schneider +6 more
TL;DR: In this paper, an insulator selection guide with respect to contamination first published 25 years ago has been updated with an update related primarily to contamination conditions in North America, particularly for some types of nonceramic insulators.