高土壤电阻率变电站接地网改造  

Ground Grid Retrofit for Substation in High Soil Resistivity Area

作　　者：李义仓[1] 王宏[2] 

机构地区：[1]汉中供电局,陕西汉中723000 [2]陕西电力科学研究院,陕西西安710054

出　　处：《陕西电力》2009年第8期53-55,共3页Shanxi Electric Power

摘　　要：三道河变电站地处山区,是雷电活动强烈的地方,由于变电站的接地电阻偏高,对防雷极为不利。通过严格的论证和分析,确定了三道河高土壤电阻率变电站接地网的改造方案,并实施了相应的改造,使这种土壤地质构造地区的地网结构更加合理,达到规程和反事故措施的要求,为此类地网改造积累了经验,保证了电力设备运行的安全性和可靠性。Sandaohe substation is situated in a mountain area with strong lightning activity. High grounding resistance of the substation is unfavorable for anti-lightning protection. Through the demonstration and analysis, a retrofit scheme of ground grid in Sandaohe substation in high soil resistivity area is given. The scheme is implemented to make the structure of the ground grid more reasonable, meet the requirements of standard ＆ anti-accident measures, and ensure the safety and reliability of power equipment.

关 键 词：高土壤电阻率 变电站 接地网 改造 

分 类 号：TM862[电气工程—高电压与绝缘技术]