柔性石墨垂直接地体在杆塔中的应用研究  

Study on the Application of Flexible Graphite Composite Electrical Vertical Grounding Material in Tower

作　　者：张昌[1] 甘艳[1] 邹建明[1] 黄道春[2] 李铁成 

机构地区：[1]华中电网有限公司,武汉430000 [2]武汉大学电气工程学院,武汉430072

出　　处：《电瓷避雷器》2017年第5期54-58,共5页Insulators and Surge Arresters

摘　　要：针对部分因施工场地受到限制而无法按常规设计方案敷设的杆塔接地网,提出了在水平接地网基础上使用石墨垂直接地体的思路以占用尽可能小的空间来降低接地电阻。在此基础上选取典型水平接地网,利用CDEGS仿真软件,对在不同土壤电阻率条件下进行加装石墨垂直接地体后的工频接地电阻的仿真计算,并由此确定不同土壤电阻率类型的合理设计方案。同时,考虑到石墨接地材料的物理性质与传统金属接地材料的不同,提出了柔性石墨垂直接地体的回填施工技术方案以供参考。For some place in restricted conditions, conventional design scheme cannot be access to the tower grounding grid. It is proposed that the flexible graphite composite electrical vertical grounding material should be utilized on the base of horizontal ground grids to occupy as little space as possible to reduce the ground resistance. On this basis, the typical horizontal grounding network is selected, and the simulation calculation of the power grounding resistance of flexible graphite composite electrical vertical grounding material under different soil resistivity conditions are carried out by using CDEGS simulation software, and thus determine the reasonable design for different types of soil resistivity. At the same time, taking into account the different physical properties of graphite grounding material and the traditional metal grounding material, the backfill construction technology proposal of flexible graphite composite electrical vertical grounding material is put forward for reference.

关 键 词：柔性石墨垂直接地体 分层土壤 接地电阻 敷设方案 回填技术 

分 类 号：TM75[电气工程—电力系统及自动化] TM862