摘要
针对变电站接地降阻改造中采用的外延法进行分析,给出外延地网区域的选择和安全校核方法,认为外延法的优点是原理简单、施工方便、工程造价较低;缺点是占用发电厂或变电站外较大规模的土地资源.
The extension grounding method for substations＇ resistance-reducing is analyzed in the paper. The selection of extension grounding area and safety verified methods are presented. The merit of the extension grounding is simple principle, convenient construction and low cost; the demerit is large land area occupation out the power plant or substation.
出处
《电力科学与技术学报》
CAS
2008年第1期89-93,共5页
Journal of Electric Power Science And Technology
关键词
变电站
发电厂
降阻
外延接地法
substation
power plant
resistance-reducing
extension grounding method
