电力系统常用GW4型隔离开关热故障及处理  

作　　者：刘淑琼 曾祥胜 陶丽芬 

机构地区：[1]国网湖北电力有限公司武汉供电公司检修公司变电运维室,湖北武汉430000

出　　处：《科技创新与应用》2018年第23期149-150,共2页Technology Innovation and Application

摘　　要：在电力系统中,隔离开关是不可或缺的一部分,但是多年的运行经验中,经常出现隔离开关发热而形成的缺陷,进而造成全站内的停电的情况,如变电站的6k V^110k V断路器、隔离开关、电流互感器、电压互感器、电容器、电抗器等设备的维修、维护、大修和技改等工作一般会安排在计划停电时执行,然而大部分情况下,隔离开关出现的问题比较多,常见的问题就是发热比较严重,为了更好处理此类型的缺陷,文章针对隔离开关在正常运行的情况下,出现的各种不利条件,以及常见的故障类型情况进行总结,并提出了相关的检修防范措施,对实践工作具有一定的参考意义。In the power system, disconnector is an indispensable part, but in many years of operation experience, the disconnector often has the defect caused by heat, which leads to the blackout in the whole station. For example, the repair, maintenance, overhaul and technical renovation of equipment such as 6 kV circuit breakers, disconnectors, cmTent transfomlers, voltage transform- ers, capacitors and reactors in substations are generally scheduled to be carried out during planned blackouts, however, in most cases, In order to deal with this kind of defect better, the article aims at the various disadvantageous conditions which appear under the normal operation condition of the isolating switch, the common proHem is that the heat is more serious, in order to better deal with this kind of defect, the paper points out that the disconnector has many disadvantages under normal operation. The common fault types are summarized, and the relevant preventive measures are put forward, which has a certain reference significance to the practical work.

关 键 词：隔离开关 发热 维修 

分 类 号：TM564.1[电气工程—电器]