山西云冈矿架空输电线路防雷措施  

Lightning Protection Measures of the Overhead Transmission Lines of Yungang Mine in Shanxi Province

作　　者：肖峰[1] Xiao Feng(Yungang Mine,Datong Coal Mine Grou)

机构地区：[1]同煤集团云冈矿

出　　处：《现代矿业》2018年第7期139-141,共3页Modern Mining

摘　　要：分析了云冈矿现有的架空线路防雷设计存在的问题,以及导线遭到雷击时防雷设备无法达到理论上的防雷等级,导致线路跳闸出现供电中断的现象。通过构建各种模型(雷电流模型、杆塔及输电线路模型、雷击感应过电压模型),讨论了雷击时过电压、过电流的幅值对防雷设备的影响。在上述分析的基础上,对该矿架空输电线路的防雷措施进行了探讨,对于确保矿区输电线路安全运行有一定的参考价值。The existing problems of the lightning protection design of the overhead lines of Yungang Mine are analyzed,when the power wire is struck by lightning, the lightning protection equipment cnanot reach the theoretical lightning protection level, the phenomenon of power supply interruption caused by power line tripping is discussed. Then, based on the lightning flow model, towers and transmission lines model and lightning strikes induced overvohage model, the influence of the overvohage and overcmwent amplitude of lightning strike is analyzed. Based on the above analysis results, the lightning protection measures of the overhead transmission liens of Yuangang Mine is studied, so as to provide reliable refer- ence for the safety operation of the overhead transmission lines of the mine.

关 键 词：架空输电线 防雷措施 耐雷水平 杆塔 防雷等级 

分 类 号：TM863[电气工程—高电压与绝缘技术]