高压隔离开关运行分析及其完善化

Operation Analysis and Its Perfection for HV Switch-Disconnector

高压隔离开关是电力系统中使用量最大、应用范围最广的高压电器设备，同时它又是最不受制造和使用部门所重视的电器设备。所以长期以来高压隔离开关故障频发而又得不到根本解决。文章对72．5—550kV高压隔离开关在运行中所反映出的主要问题，即瓷瓶断裂、操作失灵、导电回路过热和锈蚀进行了原因分析，并列举了典型事故案例；指出了高压隔离开关在制造、使用等方面存在的问题；并给出了近几年在高压隔离开关完善化方面所作的工作。

HV switch - disconnector is the I-IV electrical equipment with the biggest quantity in use and the most broad scope in application in power system, at the same time, it is not be paid attention by manufacturers and users. The faults of HV switch - disconnector occurred frequcntly, which could not be solved thoroughly for a long time. The paper analyzed the main problems in operation of 72.5 - 550 kV HV switch - disconnector, such as porcelain insulator breaking, operation ineffectivenoss, overheat and corrosion of conductive loop, and gave the typical case studies. It is pointed out the existent problems of HV switch - disconnector in inanufacturing and its application. And the achievements of improving HV switch - disconnector in recent ）,cars arc also gi,,~n in the paper.