摘要
500 kV三峡外送线路作为三峡电能输出的主要通道,保证其安全运行对三峡及全国电网起着举足轻重的作用。为有效降低三峡外送线路故障跳闸率,确保线路今后持续安全稳定运行,通过对湖北超高压输变电公司自2001年以来所辖500kV三峡外送线路运行的具体数据统计,着重分析了导致线路发生雷击、污闪、覆冰舞动、风偏及鸟害等典型故障的原因与机理,并对线路如何防雷击、防污闪、防覆冰、防风偏等故障跳闸分别提出了相应采取的具体防范对策与措施,对进一步提高线路可用率,促进电网的安全稳定运行奠定了基础。
Keeping the safety of 500 kV Three Gorges power line, the major electric energy transmission passage, is of great significance to the Three Gorges regional network, as to the nationwide grid too. To reduce the fauh tripping rate and to ensure running safety and stability of Three Gorges power line, some precautionary methods were put forward to prevent fault tripping by such as lightning strike, dirty flash, ice covering, wind drifting, etc, on the basis of a statistical analysis to the 500 kV Three Gorges power line＇s operational data running by Hubei EHV Transmission and Substation Company since 2001, which established the basis for improving power line availability factor, and enhancing running safety and stability of electricity grid.
出处
《中国电力》
CSCD
北大核心
2008年第1期36-39,共4页
Electric Power
关键词
三峡
输电线路
运行
统计分析
Three Gorges
power transmission line
running
statistical analysis
