长距离GIL现场耐压试验研究  

Study on Long Distance GIL Withstand Voltage Test on Site

作　　者：洪巧章 彭飞 许立波 HONG Qiao-zhang;PENG Fei;XU Li-bo(Energy Development Research Institute Company Limited of China Southern Power Grid,Guangzhou 510530,China)

机构地区：[1]南方电网能源发展研究院有限责任公司,广东广州510530

出　　处：《电力勘测设计》2021年第11期6-10,共5页Electric Power Survey & Design

摘　　要：气体绝缘金属封闭输电线路(GIL)具有传输容量大、运行损耗小、安全可靠性高等优点,逐渐成为替代城市架空线路的优选方案。本文针对目前长距离GIL现场耐压试验方案研究的不足,提出单相整段加压方式和单相分段加压方式两种耐压试验方案。对于长度超过10 km的GIL建议采取分段加压方式进行耐压试验。Gas insulated metal enclosed transmission line(GIL)has the advantages of large transmission capacity,low operation loss,high reliability,and has gradually become the alternative to urban overhead lines.In this paper,in view of the shortcomings of the current long-distance Gil line on-site voltage withstand test scheme for test equipment and test site,two voltage withstand test schemes,single-phase whole section pressurization mode and single-phase subsection pressurization mode,are proposed..For GIL with a length of more than 10 km,it is suggested that the test should be conducted in sections.

关 键 词：气体绝缘输电线路 现场耐压试验 分段试验 

分 类 号：TM722[电气工程—电力系统及自动化]