110kV古冶变电站接地系统设计方案及其实施效果  

DESIGN AND IMPLEMENTATION OF GROUNDING SYSTEM IN 110 kV GUYE SUBSTATION

作　　者：刘群[1] 曾嵘[2] 何金良[2] 高延庆[2] 孟庆波 

机构地区：[1]唐山供电公司,河北省唐山市063000 [2]清华大学电机系,北京100084 [3]清华同方股份有限公司,北京100084

出　　处：《电网技术》2001年第4期40-42,46,共4页Power System Technology

摘　　要：唐山 110 k V古冶变电站的地质结构 ,土壤电阻率从上到下逐渐增大可分为 3层 ,针对其具体地质和地形条件进行设计时将接地系统在水平方向适当外延 ,结合深井爆破和压灌低电阻率材料方法对该变电站接地系统进行施工。测量结果表明 ,该接地系统的实测接地电阻与设计值非常接近 ,做到了精确设计。随着计算机技术和数值分析技术的发展 。The design and construction of 110kV Guye substation is implemented by explosion grounding technology. The geological structure of this substation can be divided into three layers according to the measured results. The grounding system include extensive horizontal grounding grid, and vertical grounding electrodes constructed by making cracks in the soil and filling low\|resistivity\|material into cracks. The measured grounding resistance of this substation after construction is close to its design value. With the development of computer and numerical analysis technologies, the design of grounding system should be changed from traditional simple design method to precise design by use of computer.

关 键 词：变电站 接地系统 爆破接地技术 接地电阻 

分 类 号：TM63[电气工程—电力系统及自动化] TM862