输电线路环形接地装置的设计及电阻计算  

Design and Resistance Computation of Ring-shaped Grounding Device of Transmission Line

作　　者：孙洪波 于德水 SUN Hongbo;YU Deshui(Hulunbeir Bright Star Electric Power Design Institute Co.,Ltd.,Hulunbeir 021000,China;Huadian Inner Mongolia Energy Co.,Ltd.,Tumote Power Branch,Baotou 014100,China)

机构地区：[1]呼伦贝尔市明星电力设计院有限公司,内蒙古呼伦贝尔021000 [2]华电内蒙古能源有限公司土默特发电分公司,内蒙古包头014100

出　　处：《内蒙古电力技术》2021年第6期91-93,共3页Inner Mongolia Electric Power

摘　　要：针对输电线路接地电阻的计算粗略、偏差大的问题,提出一种施工简便的环形接地装置。该装置结构简单,施工方便快捷,节约用地,节省工程投资。通过测量土壤电阻率,在工程设计阶段即可对该接地装置工频接地电阻进行精确计算,并将其控制在合理范围内,在设计阶段可确定是否加装模块及加装模块数量。从而降低后续工程建设中的风险,提高输电线路接地装置的建设质量和效率。In order to solve the problem of rough calculation and large deviation of grounding resistance of transmission lines, a simple ring grounding device is proposed. The device has the advantages of simple structure, convenient and quick construction, and the land and project investment saving. By measuring the soil resistivity, the power frequency grounding resistance of the grounding device can be accurately calculated in the engineering design stage, and the resistance can be controlled in a reasonable range. In the design stage, it can be determined whether to add modules and the number of modules or not. Thus, the risk in the following construction can be reduced and the construction quality and efficiency of transmission line grounding device can be improved.

关 键 词：输电线路 接地电阻 环形接地装置 土壤电阻率 工频利用系数 

分 类 号：TM726[电气工程—电力系统及自动化]