配电线路感应雷过电压防护研究

Research on lightning induced overvoltages of distribution lines

线路感应雷过电压不同的雷击方式下电压的最大值计算公式,从耐雷水平和雷电跳闸率两方面来进行防雷水平的判断,同时对线路雷电故障原因进行了分析,最后针对故障原因提出配电线路感应雷过电压的防护措施。

Due to the low level insulation of distribution line and the weak protective measures, this paper stated the computational formula of maximum voltage under different lightning way of induction lightning over voltage. Through the lightning resisting level and lightning trip-out rate, the lightning protection level was judged. This paper also analyzed the cause of line lightning fault. Finally, it putted forward the lightning over voltage protection measures of distribution lines based on the cause of line lightning fault.