±800kV特高压平波电抗器树枝状放电故障分析  

Analysis on the Tree Discharge of ±800 kV UHVDC Smoothing Reactors

作　　者：李扬[1] 严进军[1] 张锐[1] 周翔胜[1] 

机构地区：[1]中国南方电网超高压输电公司广州局,广州510405

出　　处：《南方电网技术》2012年第6期41-43,共3页Southern Power System Technology

摘　　要：以±800 kV云广特高压直流输电工程穗东换流站干式平波电抗器树枝状放电故障为背景,通过仿真分析验证了这次故障是由于平波电抗器隔音罩的横向金属连接螺栓螺栓松动导致电位悬浮所致,并提出了相应的改进措施和运行维护建议。Aiming at the tree discharge of ±800 kV smoothing reactors in ±800 kV Suidong Converter Station of Yunnan-Guangdong UHVDC transmission project, this paper makes a simulation of the fault, and concludes that it was induced by floating potential due to the looseness of stainless steel connecting bolts in soundproof cover of the smoothing reactor. Furthermore the improved measure and advice for operation and maintenance are brought forward.

关 键 词：特高压直流 平波电抗器 树枝状放电 悬浮电位 

分 类 号：TM478[电气工程—电器]