摘要
本文通过在500kV输电线路的模型塔和模型线段上的塔顶电位响应试验,用响应曲线法研究超高压线路杆塔—避雷线—接地电阻这一系统的响应特性,分析了雷击塔顶和雷击1/4档距时雷电流波头、接地电阻、拉线等因素对塔顶电位的影响,得出了塔顶电位的变化规律及雷击1/4档距与雷击塔顶的塔顶电位峰值的比率。
This paper studies the potential characteristics of EHV transmission line towers. It analyzes the effect of earthing resistance, current wave front and guies on potential at the top of the tewer when a stroke terminats on the top of the tower or 1/4 span. The variations of the potential and the ratio of the tower top potential for a stroke terminating on the tower top to that for a stroke terminating on the 1/4 span are obtained.
出处
《高电压技术》
EI
CAS
1987年第3期8-14,共7页
High Voltage Engineering
