摘要
将 50 0kV变电站和进线段结合起来 ,考虑绝缘子串冲击伏秒特性、进线段冲击电晕和杆塔冲击接地电阻等影响因素 ,分远区及近区落雷 ,采用国际通用的电磁暂态计算程序 (EMTP)对 50 0kV变电站的雷电侵入波过电压进行了研究。研究表明将 50 0kV变电站和进线段结合起来更接近实际情况 。
The study on overvoltage for 500 kV substation caused by lightning intruded wave is presented. In this paper, we calculate by using electromagnetic transient program (EMTP) and combine substation with incoming lines ,so some influence factors can be considered such as impulse voltage second characteristic of insulator strings, lightning stroke point on the incoming lines and impulse grounding resistance of towers. The results show that the method is close to the practice and some factors of incoming lines are important to overvoltage.
出处
《重庆大学学报（自然科学版）》
CAS
CSCD
2000年第3期17-19,共3页
Journal of Chongqing University
关键词
雷电过电压
绝缘子串
进线段
变电站
雷电侵入波
lightning overvoltage
insulator strings / substation incoming lines
impulse voltage second characteristic
