Title :
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
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;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990726
