高山区域110kV输变电工程雷击分析及对策

Lightning Strike Analysis and Countermeasures of 110kV Power Transmission and Transformation Project in High Mountain Areas

山西中煤平朔能源化工公司属于易燃易爆生产企业,对安全供电有严格的要求,主供电线路发生跳闸不仅会严重影响企业生产,还会带来安全隐患。供电线路在穿越高山地区时极易遭受雷击风险使供电线路掉闸,通过分析,采取了一塔双回路铁塔绝缘子的技术改造、安装并联间隙、加装线路避雷器、降低接地电阻等技术措施,大幅度提高了线路在雷击时的安全供电能力,保障了工厂的安全稳定运行,这对预防其他输电线路防雷击掉闸的情况有一定的借鉴意义。

Shanxi Zhongmei Pingshuo Energy and Chemical Co.,Ltd.is an inflammable and explosive production enterprise,which has strict requirements for safety in power supply.The trip which occurs in the main power supply line will not only seriously affect the production of the enterprise,but also bring potential security risks.The power supply lines across the mountain areas are vulnerable to lightning strike in the mountainous area,which may cause the power supply line to trip.Based on the analysis above,some technical measures are adopted,such as,technological transformation of the tower insulator of one tower,double circuit,installation of parallel gaps,adding line lightning arresters,reducing the grounding resistance and so on,which can greatly increase the safety of power supply capacity of lines when struck by lightning,guarantee the safe and stable operation of the factory,and provide certain reference for preventing the trip of other transmission lines struck by lightning.