高电压技术2018，Vol.44Issue(5)：1612-1618,7.DOI:10.13336/j.1003-6520.hve.20180430029
银东线雷电防护线路避雷器开发与应用
Development and Application of Lightning Protection Line Arrester for Yindong Line
摘要
Abstract
In order to improve the lightning withstand level of ±660 kV DC transmission line,we analyzed basic requirements and structural type of line surge arresters. Moreover,we researched some key technical parameters, such as the nominal voltage, DC reference voltage, residual voltage, long-duration current impulse current, pressure release capability, insulation coordination, series gap distance, and so on, through calculation and corresponding experimental verification. Meanwhile, we developed ±660 kV DC transmission line arresters successfully, and designed a stand support type installation of line arresters. According to the research results, the nominal voltage is 800 kV, the DC reference voltage is no less than ±800 kV, the nominal discharge current is 30 kA, the residual voltage no more than 1 583 kV, the probability of 50％ of lightning impulse discharge voltage no more than 2 600 kV, the series gap distance is (1 900±100) mm, and the long-duration current impulse current is 2 kA, respectively. Line arresters for ±660 kV DC transmission line have been used in ±660 kV Yinchuan-Shandong DC transmission line (Yindong line), which accumulates operating experiences and provides a basis for large-scale application of line arrester on ±660 kV DC transmission lines.关键词
±660 kV直流输电线路/银东线/线路避雷器/绝缘配合/雷电防护/雷电冲击放电试验/直流耐受电压试验Key words
±660 kV DC transmission line/Yindong line/line arrester/insulation coordination/lightning protection/lightning impulse discharge test/DC withstand voltage test引用本文复制引用
万帅,曹伟,陈家宏,谷山强,王剑,吕军..银东线雷电防护线路避雷器开发与应用[J].高电压技术,2018,44(5):1612-1618,7.基金项目
国家电网公司科技项目(高海拔±400 kV、±660 kV 直流输电线路避雷器研制).Project supported by Science and Technology Project of SGCC (Development of ±400 kV, ±660 kV DC Transmission Line Arrester for High Altitude). （高海拔±400 kV、±660 kV 直流输电线路避雷器研制）
