Effects of Absolute Humidity on Flashover Voltage of Insulators

Osamu Fujii; Kazuhiro Hidaka; Yukio Mizuno; Katsuhiko Naito; Takashi Irie; Morio Nishikawa

doi:10.1541/ieejpes.127.410

IEEJ Transactions on Power and Energy

Online ISSN : 1348-8147
Print ISSN : 0385-4213
ISSN-L : 0385-4213

Paper

Effects of Absolute Humidity on Flashover Voltage of Insulators

Osamu Fujii, Kazuhiro Hidaka, Yukio Mizuno, Katsuhiko Naito, Takashi Irie, Morio Nishikawa

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Keywords: insulators, flashover voltage, absolute humidity, humidity correction, natural conditions

JOURNAL FREE ACCESS

2007 Volume 127 Issue 2 Pages 410-416

DOI https://doi.org/10.1541/ieejpes.127.410

Details

Abstract

Effect of humidity on flashover voltage of three kinds of insulators is experimentally studied for about three years under natural humidity condition. It is found that the existing IEC humidity correction seems to be proper for most insulators regardless of the kinds of applied voltage but that change may be necessary for a cap and pin insulator unit under the application of positive and negative lightning impulse voltages.

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