NDLI: Evaluation of flashover voltage property of snow accreted insulators for overhead transmission lines, part III - 154 kv full-scale flashover voltage test of snow accreted insulators -

Content Provider	IEEE Xplore Digital Library
Author	Homma, H. Yaji, K. Aso, T. Watanabe, M. Sakata, G. Dernfalk, A. Gutman, I.
Copyright Year	1994
Abstract	In December 2005, Japan experienced a major outage in Niigata Kaetsu area due to a large amount of wet snow mixed with sea-salt accreted on several transmission line insulators. To clarify the causes of the snow-induced outage and increase reliability of the networks, a 154 kV class full-scale snow test procedure to evaluate various insulator designs was developed, and artificial flashover voltage tests of snow accreted insulators were carried out. High voltage flashover tests showed that the flashover voltage of both long-rod and cap & pin insulators was decreased with the increase of snow conductivity. Also, cap & pin insulators showed significantly higher flashover voltage than long-rod insulators. Thus substitution of long-rod insulators with cap & pin insulators appears to be reasonable as a countermeasure against snow induced flashovers.
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	2568
Ending Page	2575
Page Count	8
File Size	1150959
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	Snow Insulators Flashover Conductivity Power transmission lines Leakage currents Dielectric liquids flashover Insulator wet snow packed snow sea-salt
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Evaluation on flashover voltage property of snow accreted insulators for overhead transmission lines, part II - flashover characteristics under salt contaminated snowstorm

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Evaluation of flashover voltage property of snow accreted insulators for overhead transmission lines, part III - 154 kv full-scale flashover voltage test of snow accreted insulators -

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Evaluation of flashover voltage property of snow accreted insulators for overhead transmission lines, part III - 154 kv full-scale flashover voltage test of snow accreted insulators -