变电站地网导通电阻的模拟计算与分析  

Numerical Calculation and Analysis of Substation Gronding Grid Connective Risistance

作　　者：张科[1] 寇晓适[1] 何智强[2] 陈守聚[1] 文习山[2] 张劲光[3] 

机构地区：[1]河南电力试验研究院,河南郑州450052 [2]武汉大学电气工程学院,湖北武汉430072 [3]河南省电力公司,河南郑州450052

出　　处：《河南电力》2006年第4期7-10,39,共5页Henan Electric Power

摘　　要：通过模拟计算的方法研究了变电站地网导通电阻的变化规律。对于不同情况的地网进行了模拟计算,包括边缘部分断开、中间部位断开以及多处部位断开后的计算结果,得出不同情况下导通电阻的变化规律,结合变电站导通电阻的测试,并将测试数据与计算数据比较后,可判断地网存在问题的位置,提出能够反映地网腐蚀的简单而有效的办法和判据。是对《电力设备预防性试验规程》DL/T596-1996关于导通的测试方法和判断依据的建议和补充。Study on the variational regulation of rubstation gronding grid connective risistance by numerical calculation. Including the edge part of gronding grid to open, in the center of gronding grid to open and several parts of gronding grid to open, get the different variational regulation under the different structure of rubstation gronding grid. Combine the data of measuring resistance between substation equipment grounding conductor and compare the test data with result of numerical calculation, find out the simple and valid way that can reflect the corrosion of substation gronding grid. It is the suggestion and the complement about test method and criterion of rubstation gronding grid connective risistance to 《preventive test code for electric power equipments》.

关 键 词：模拟计算 变电站 地网 腐蚀 导通电阻 

分 类 号：TM63[电气工程—电力系统及自动化]