西北高土壤电阻率地区线路接地电阻的测量方法  

Research on Tower Grounding Resistance Measurement in Northwest Region with High Soil Resistivity

作　　者：何岩[1] 张永金[1] 李亚[2] 李吉文[2] 徐玉波[2] 岳华刚[2] 

机构地区：[1]西北电力设计院,西安市710075 [2]新疆电力公司,乌鲁木齐市830002

出　　处：《电力建设》2011年第9期33-36,共4页Electric Power Construction

摘　　要：高土壤电阻率地区杆塔接地电阻存在无法测出的问题。通过理论计算认为,高土壤电阻率导致辅助接地探测棒接地电阻过大,从而导致接地电阻仪失灵。提出的措施为:增加辅助接地探测棒的长度和直径、提高土壤含水量、使用食盐做降阻剂。现场试验的结果证明了该方法的正确性和合理性。The grounding resistance measurement instrument fails in high soil resistivity because the grounding resistance is too high of auxiliary grounding detection rod from the theoretical analysis. In order to improve the sensitivity of measurement instrument, it is proposed to increase the length and diameter of auxiliary grounding detection rod, enhance the water content of soil and apply salt for decreasing resistance. The correctness and reasonability of the proposed method are validated by field experiment.

关 键 词：高土壤电阻率 接地电阻 测量方法 ZC-8 接地型式 辅助接地探测棒 

分 类 号：TM86[电气工程—高电压与绝缘技术]