摘要
利用ATP-EMTP仿真计算分析某220kV变电站遭受雷电波侵入时,分别在运行方式、杆塔冲击接地电阻、雷击点与变电站的距离、避雷器的保护方式以及避雷器与保护设备之间距离不同的情况下,雷电过电压对设备的影响;提出在主变避雷器前串联电感,以抑制雷电侵入波的陡度,保护主变纵绝缘的方法。
ATP-EMTP simulation program is applied to simulate and analysis how lightning influences facilities when lighting strikes a 220 kV substation,considering affecting factors of different operation mode,impulsive ground resistance of tower,distance between lightning strike spot and power substation,lightning protection mode,as well as distance between arrester and the protected facility.Besides,a method of fixing series inductor in front of the transformer arrester is presented,to restrain the steepness of lig...
出处
《福建电力与电工》
2009年第1期9-13,20,共6页
Fujian Power and Electrical Engineering
