摘要
分别在0、1 970、2 245和3 723 m海拔地区开展了±800 kV直流输电线路真型尺寸模拟杆塔和换流站极母线空气间隙50%操作冲击放电特性对比试验研究。通过分析计算,给出了±800 kV高压直流工程高海拔地区直流线路和换流站典型空气间隙操作冲击放电电压的海拔校正系数;并讨论了高海拔地区空气间隙放电特性的校正方法。
In this paper the 50% switching impulse flashover voltage tests have been carried out on the real size simulation tower of ±800 kV UHVDC transmission line and the pole line of ±800kV UHVDC converter station at 0, 1970,2 245 m and 3 723 m altitude respectively. Based on the calculation and analysis results of the test data, the high altitude correction factors and the correction method for air gaps of ±800 kV transmission line and converter station were suggested.
出处
《电网技术》
EI
CSCD
北大核心
2008年第22期13-16,共4页
Power System Technology
