摘要
针对青海一西藏±400 kV直流线路工程进行了绝缘配合研究,给出了高海拔地区常规直流线路绝缘子片数和串长选择方法,推荐了青海一西藏±400 kV直流联网工程线路绝缘子配置方案;给出了高海拔地区直流线路杆塔的最小空气间隙距离。
The insulation coordination of the±400 kV Qinghai-Tibet HVDC transmission line is studied.The normal selection method of piece number and length of insulator string is summarized according to the pollution flashover test,and then the insulation coordination for the±400 kV Qinghai-Tibet HVDC transmission line is recommended.Based on the calculation and analysis of the test data,the minimum air gap distances are recommended for HVDC transmission lines in high altitude areas.
出处
《电网与清洁能源》
2012年第6期39-43,54,共6页
Power System and Clean Energy
关键词
直流输电线路
绝缘配合
绝缘子
空气间隙
高海拔
HVDC transmission line
insulation coordination
insulator
air gap
high altitude
