directly

Using CDEGS program,the author analyzed the influence of variation conserning resistivity of upper soil layer,reflection factor,thickeness of upper soil layer and length of vertical grounding rods on resistance reduction rate.

在变电站双层土壤结构中,采用接地设计软件CDEGS分析了上层土壤电阻率、反射系数、上层土壤厚度及垂直接地极长度变化对降阻率的影响。

Based on alternative electrode arrangement region of UHVDC,this paper selects a region suitable for vertical grounding electrode and designs several different arrangement scenarios of this kind of electrode,then computes their performance parameter in technology and economy.

针对±800 kV直流输电工程接地极的备选极址概况,选取理论上适合采用垂直型电极的极址,设计了几种垂直接地极的不同布置形式,在子电极长度不变其它参数改变和子电极根数不变其它参数改变2种情况下进行了技术和经济性能的计算比较。