农村电网智能电表系统雷电灾害深入实践

Lightning Disaster in Rural Power Grid Intelligent Electric Meter System In-depth Practice

针对2012年在国网浙江金华市金东区进行的农村智能电表系统防雷试点项目效果评估,分析现有智能电表系统防雷技术应用不能达到预期效果原因。通过对智能电表电源线路雷电感应是智能电表频遭雷电灾害的重要外因出发,结合试点现像分析,提出一种电原端口及485信号端口同时进行浪涌保护的浪涌设计方案;针对新方案及新试点的效果统计分析;农村电网智能电表系统有效防雷设计:必须综合利用防雷技术手段包括接闪、分压、接地、屏蔽、分流(安装电涌保护器)的综合应用才能保证智能电表系统安全。

This paper analyzed the practice effect that lightning disaster in rural power grid intelligent electric meter system in Jin Dong District Jin Hua City Zhe Jiang Province. Analyzed the reason of the effection non-satisfied with the requirement. Analyzed the cause of lightning disaster for the intelligent electric meter system, Proposing the new product design scheme with power line and signal line Multiple protection. In order to ensuring the intelligent electric meter system safety and avoiding the lightning disaster, The conclusion that we need to utilize the comprehensive scheme including lightning, ground-connection, shield, Split-flow and so on.