摘要
研究云广±800kV直流线路用仿真塔的空气间隙50%操作冲击放电特性,结果表明,云广±800kV输电线路的绝缘子采用V形串,操作冲击电压成为杆塔空气间隙尺寸的控制因素;V形绝缘子串直线杆塔空气间隙距离在海拔高度为1000m及以下、1500m和2000m的地区应分别不小于6.2m、6.7m和7.1m。
The switching impulse discharge characteristics of air clearance at simulation towers of Yunnan - Guangdong ± 800 kV DC project are studied, and the results indicate that the switching impulse discharge voltage is the control factor of tower air clearance The air clearances at vertical towers with V string insulators at the altitudes of less than 1 000 m, 1 500 m and 2 000 m should be longer than 6.2 m, 6.7 m and 7.1 m respectively.
出处
《南方电网技术》
2010年第2期52-55,共4页
Southern Power System Technology
基金
"十一五"国家科技支撑计划重大项目(2006BAA02A19)~~
