摘要
在中国,电网架构复杂,高压输电线路跨度大,线路遭受雷击不可避免。而雷击引起的雷电过电压是电力系统的突出问题,因此研究有效保护电力系统免受雷击损坏的保护措施极其重要。对断路器线路侧安装对地间隙和氧化锌避雷器两种保护措施的有效性进行了PSCAD/EMTDC仿真分析,得出其有效的保护范围,具有一定的工程指导作用。同时验证了安装氧化锌避雷器较安装对地间隙对断路器的防雷保护更有效。
In China, grid framework is complex, high-voltage transmission lines have a large span, lines being struck by lightning is unavoidable. The lightning overvoltage is the prominent problems of the power system, so, re- search effectively protections that protect the power system from lightning damage is extremely important. Through PSCAD/EMTDC simulation, the effectiveness of the gap and the ZnO arrester that installed on the Breaker line side is analysed, drawn its effective protection scope. It has a certain guidance to engineering. And, verified that instal- lation of arrester is more effective than installing gap.
出处
《科学技术与工程》
北大核心
2013年第2期487-490,共4页
Science Technology and Engineering
