Lightning shielding failure is the main factor to threat the safety and reliability of EHV transmission lines.
雷电绕击是危及超高压输电线路安全稳定运行的主要原因。
This paper brief discuss the theory of lightning shielding and analyzes the calculation method of shielding failure rate of transmission line.
简要论述了雷电屏蔽理论，分析了输电线路绕击率的计算方法。
With such model the effect of tower structure, lightning current amplitude, angle of the lightning incidence, as well as the ground angle on the shielding failure rate are analyzed.
应用改进的电气几何模型分析了输电线路杆塔结构、避雷线和导线的布置、雷电流的幅值、地面倾角对绕击率的影响。
Main types of earthing in industrial plants include operational earthing, protective earthing, shielding earthing, electrostatic - proof earthing and lightning-proof earthing etc.
工厂中接地的种类主要有工作接地、保护接地、屏蔽接地、防静电接地和防雷接地等。
The principal cause of lightning stroke failures occurred in UHV transmission lines is the shielding failure, so it is suggested to adopt the negative protecting Angle for UHVDC transmission lines.
引起特高压输电线路雷击故障的主要因素是雷电绕击，建议特高压输电线路采用负保护角运行。
And it shows that the shielding failure rate is a function of the ang1e of lightning incidence, strokes lightning amplitude and ground ang1e.
分析并计算了因雷电流的幅值和雷电先导入射角，以及地面倾角变化对绕击率的影响。
And it shows that the shielding failure rate is a function of the ang1e of lightning incidence, strokes lightning amplitude and ground ang1e.
分析并计算了因雷电流的幅值和雷电先导入射角，以及地面倾角变化对绕击率的影响。
应用推荐