变电站地网改造前后安全参数分析  

Analysis on Security Parameters of Transformer Substation before and after Modification

作　　者：何明峰[1] 黎梓华[2] 

机构地区：[1]广西区气象技术装备中心,广西南宁530022 [2]桂林市气象局,广西桂林541001

出　　处：《气象研究与应用》2010年第2期68-71,共4页Journal of Meteorological Research and Application

摘　　要：通过对变电站采取不等间距地网敷设进行改造前后变电站的接触电压、跨步电压、地电位升及接地电阻等安全参数的分析,得出结论为:对变电站采取不等间距地网敷设进行改造不仅提高了变电站安全性,还可以节省一定量的钢材。Based on the example of a 220KV substation reconstruction by means of unequal spacing of the ground network laying,the security parameters,such as contact voltage,step voltage,ground potential rise and the grounding resistance were analyzed.A conclusion was drawn that the modified unequal spacing of the ground network had advantages of more safety and less steels required.

关 键 词：变电站 等间距 不等间距 接触电压 跨步电压 

分 类 号：P427[天文地球—大气科学及气象学]