Specific Considerations on IEC Standardization of Externally Gapped Line Surge Arresters (EGLAs)

Autor:	Yoshihiro Ishizaki, Tatsuo Kawamura, Kunikazu Izumi, Kenji Tsuge, Misao Kobayashi
Rok vydání:	2010
Předmět:	Engineering Standardization business.industry Surge arrester Electrical engineering Energy Engineering and Power Technology Insulator (electricity) Electric power transmission Overvoltage Lightning overvoltage Electrical and Electronic Engineering Surge business Voltage
Zdroj:	IEEJ Transactions on Power and Energy. 130:833-838
ISSN:	1348-8147 0385-4213
Popis:	The application of externally gapped line surge arresters (EGLAs), which have been developed and established in Japan, is now expanding into many countries. Therefore, the maintenance team 4 (MT4) in the international electrotechnical commission (IEC) technical committee 37 (TC37) for surge arresters advances the standardization works to specify the minimum criteria for requirements and testing methods of EGLAs. EGLAs are effective lightning protection of overhead transmission lines, and have unique required performances originated from the external series gap. The unique required performances of EGLA are insulation coordination performance of EGLA sparkover voltage for lightning overvoltage with the insulator assembly to be protected, withstand voltage performance for switching surge overvoltage and TOV, and follow current interruption performance.This paper discusses the specific issues to be considered for the standardization, such as classification of lightning discharge current rating and a test procedure for follow current interruption performance, based on the Japanese technology through more than twenty years of experience with a large numbers of EGLAs in 22kV to 500kV systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30946640e63beeb53bc8250e23c24de0 https://doi.org/10.1541/ieejpes.130.833 Zobrazit plný text záznamu