复杂地形条件下的GIL工程设计

Engineering Design of GIL Used at Complex Terrain

气体绝缘金属封闭输电线路(GIL)因其传输容量大、可靠性高、电磁兼容性好等优点,正在广泛地应用于核电站、城市输电和大型水电站等场合。文中结合某个GIL工程的具体地形、布置情况,从总体布置、热胀冷缩变形补偿、支架布置和结构、转弯结构设计、气室划分、现场安装及试验等方面详尽阐述了GIL工程设计中的思路及重点考虑因素等,为工程技术人员进行GIL工程设计提供参考。

Due to high reliability, high power transfer capacity and good EMC performance, gas insulated transmission lines（GIL） are now widely used in nuclear power stations, city center substations and underground transmission lines, as well as large hydropower stations. Taking example for a GIL project,this paper introduces the ideas and aspects that need to focus on during the design of a GIL project including the GIL layout, compensation for the thermal expansion of the tube, supports arrangement and structure, the structural design of turning, gas division, the installation on site and dielectric test on site etc. This paper may be references for GIL engineering design.