摘要
为满足工频过电压要求,目前水电站设计中通常考虑配置线路型和电站型两种额定电压的避雷器。最新颁布的GB/T50064-2014推荐只采用电站型避雷器。结合苗尾500 kV水电站工程,通过EMTP暂态分析软件对两种避雷器配置方式进行仿真分析。结果显示只采用电站型避雷器,能够保证避雷器冲击电流满足要求的前提下提高电力设备耐雷水平。
In order to satisfy power frequency overvohage, presently, the design of hydropower stations usually configured line-type and station type lightning arrester. The newest standard GB/ T50064-2014 recommends only using station-type lightning arresters. Take the example of Miaowei hydropower station, the two kinds of lightning arrester configuration are analyzed through the simulation software EMTP. The result shows that only using station-type lightning arrester can guarantee to improve the power equipment＇s lightning withstand level.
出处
《电瓷避雷器》
CAS
北大核心
2016年第1期112-115,共4页
Insulators and Surge Arresters
关键词
电站型避雷器
EMTP暂态分析
雷电过电压
station-type lightning arrester
EMTP transient analysis
lightning overvoltage
