Insulation characteristics of GIS for nonstandard lightning surge waveforms. III. Flashover phenomena for polarity reversal waveform

Author

Okabe, Shigemitsu ; Koto, Masanori ; Kawashima, Takeshi ; Ishikawa, Toshio ; Yamagiwa, Tokio

Author_Institution

Tokyo Electr. Power Co. Inc., Japan

Volume

3

fYear

1999

fDate

1999

Firstpage

167

Abstract

Evaluation of lightning surge waveforms which actually enter into substations is important when investigating the test voltage of equipment. Three types of typical nonstandard waves were selected as a result of investigation of actual lightning surge waveforms. In this study, abnormal flashover phenomena were observed at the pulse like waveform with polarity reversal. This report describes abnormal flashover characteristics and analysis of the flashover propagation steps using image converter camera observation and electrical field analysis

Keywords

gas insulated switchgear; GIS; abnormal flashover characteristics; abnormal flashover phenomena; electrical field analysis; flashover phenomena; flashover propagation steps; image converter camera observation; insulation characteristics; nonstandard lightning surge waveforms; nonstandard waves; polarity reversal waveform; pulse like waveform; substations;

fLanguage

English

Publisher

iet

Conference_Titel

High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)

Conference_Location

London

ISSN

0537-9989

Print_ISBN

0-85296-719-5

Type

conf

DOI

10.1049/cp:19990726

Filename

816747