750 kV GIS设备长母线结构滑动支撑失效原因分析  

Failure Analysis of Sliding Support of Long Busbar Structure in 750 kV GIS Equipment

作　　者：张烁 陈莲君 付宣蓉 王志惠 陈文强 刘高飞 何喜梅 

机构地区：[1]国网青海省电力公司电力科学研究院,青海西宁810008

出　　处：《青海电力》2017年第3期55-58,共4页Qinghai Electric Power

摘　　要：GIS设备长母线结构在大温差条件下,母线筒体热胀冷缩现象十分明显。为保证GIS运行安全,母线筒应在支架上自由滑动。通过一起750 kV GIS母线筒体焊缝开裂故障的分析,对滑动支撑的不同装配方式进行试验验证,分析滑动支撑失效的原因,并提出保障GIS设备长母线结构安全稳定运行的建议。The thermal expansion and contraction of busbar cylinder is very obvious under the condition of large temperature difference. In order to ensure the safety of GIS operation, the busbar should slide freely on the bracket. Through the analysis of the crack failure of the 750 kV GIS busbar, the different assembly methods of the sliding support are tested and verified, and the reason of the sliding support failure is analyzed, and the suggestions are put forward to ensure the safe and stable operation of the long busbar structure of the GIS equipment.

关 键 词：GIS设备 滑动支撑 失效 

分 类 号：TM595[电气工程—电器]