摘要
确保电力系统的可靠运行以及电力设备、电力运行人员的安全,需要通过合理的设计将防雷系统的接地值降至最低,为此文中对土壤电阻率对防雷系统接地设计的影响进行了研究。首先基于双层土壤模型对土壤电阻率进行了分析,其次通过实验对不同条件下土壤电阻率变化进行了研究,最后在不同土壤条件下对接地体不同配置对防雷系统接地电阻值的影响进行了实验。实验数据表明,相对于潮湿条件,干燥条件下土壤电阻率更高,所需的接地体的数量也更多。
It is necessary to minimize the grounding value of the lightning protection system through reasonable design to ensure the reliable operation of the power system and the safety of power equipment and power operators.For this reason,the influence of soil resistivity on the lightning protection system grounding design research is carried out.The soil resistivity is analyzed based on the two-layer soil model.Then the soil resistivity changes under different conditions are studied by experiments.Finally,the effects of different configurations of grounding bodies on the grounding resistance of lightning protection system under different soil conditions are studied.The experimental data show that the soil moisture content is higher under the soil conditions than in the wet soil conditions,and the number of grounding bodies required is also more.
作者
宫宇飞
陈珊珊
朱晓松
徐烨
GONG Yu-fei;CHEN Shan-shan;ZHU Xiao-song;XU Ye(Guohua Energy Investment Co.,Ltd.,Beijing 100007,China)
出处
《信息技术》
2019年第8期98-102,共5页
Information Technology
关键词
土壤电阻率
表面电阻率
接地电阻
土壤含水量
soil resistivity
surface resistivity
grounding resistance
soil water content
