220kV线路防雷击跳闸问题分析

Analysis on Lightning Protection of 220 kV Luluo I Loop

电力从发电厂到用电单位形成了一套从发电、输电、配电、用电的复杂系统。电厂发出的电力输送到消费电能的地区,或进行相邻电网间的电力互送,使其形成互联电网或统一电网。输电线路是电网组成及输送的关键部分,由于分布广,途径不同的地理位置,气候环境也不一样,导致运行线路出现不同的故障,直接影响安全可靠运行,严重时造成停电事故及电网瓦解事故。架空输电线路的故障一直是线路安全运行的难题,故障带来的损失一直非常巨大,线路故障的预防措施及检修方法的研究,一直是电力运行人员所关注的。

Electricity from the power plant to the electricity unit has formed a set of complex systems from electricity generation,transmission,distribution and consumption.The power generated by the power plant is transported to areas where electricity is consumed,or power is transmitted between adjacent power grids to form an interconnected power grid or a unified power grid.The transmission line is a key part of the grid composition and transmission.Due to its wide distribution,different geographical locations,and different climatic environments,it leads to different breakdowns in the operation lines,directly affecting safe and reliable operation,and causing serious power outages and grid collapse accidents when serious.The failure of overhead transmission lines has always been a difficult problem for the safe operation of the lines.The losses caused by faults have always been very large.The research on preventive measures and troubleshooting methods for line faults has always been of concern to power operators.