气体绝缘金属封闭开关设备安装要领及异常分析

由于GIS 的优点, 在越来越多的变电站得到应用。GIS 属精密设备, 在安装前要对设备各方面进行现场验收, 保证产品合格; 并对基础进行检验, 确定准确安装位置, 以免给运行造成潜在危害。安装过程中要把握安装顺序, 对清洁、密封、坚固、连接、真空度、湿度等工作, 要严格按规定做好, 防止造成缺陷和事故。广东省的3 项GIS 事故表明, 在安装过程中不能有丝毫马虎, 否则就会造成不可预料的故障发生。多起GIS 设备故障, 也应引起制造、采购、现场安装, 运行人员的重视。

Installation Essentials and Anomaly Analysis of Gas Insulated Switchgear (GIS)Equipments

Because of its advantages, GIS becomes more and more popular in substations. Since GIS is precision equipment, to avoid any potential harm to operation, job-site delivery is required before installation to ensure quality, and foundation inspection should also be performed to ensure correct installation location. To avoid defects and accidents, correct procedures must be followed during installation, other tasks, including cleaning, airproofing, tightening, linking, vacuum, humidity, ete, must be done properly. Three GIS accidents in Guangdong suggest that careless in installation do results in unpredictable failures. The GIS equipment failures should draw attentions from manufacturing, purchasing, on scene installation, and operation personnel.