摘要
根据国家电网公司的规划,1000 k V"淮南—南京—上海"特高压交流输电线路苏通气体绝缘金属封闭输电线路(GIL)管廊工程将采用6 km长,1100 k V GIL设备,文中梳理了特高压GIL现场耐压试验的必要性及有效性,分析了GIL常见故障类型,针对GIL设备中常见的自由金属颗粒和尖刺缺陷进行了电场仿真,并对GIL的冲击耐压进行了过电压仿真,最后对特高压GIL的现场耐压试验提出了建议。
According to the State Grid＇s plan, a 6 km long 1100 k V GIL equipment will be adopted in Sutong GIL utility tunnel in 1000 k V ＂Huainan-Nanjing-Shanghai＂ UHV AC transmission lines project. This paper gives a detailed introduction to the necessity and effectiveness of UHV GIL over-voltage withstand testing and analyzes some common fault types. The electric field of free metal particles, the spikes in GIL equipment and the GIL over-voltage withstand testing are implemented.Finally, the suggestions to UHV GIL over-voltage withstand testing are proposed.
出处
《江苏电机工程》
2016年第4期32-35,79,共5页
Jiangsu Electrical Engineering
基金
国家重点基础研究发展计划(973计划)基金项目:2011CB209406
