500 kV SF_6电流互感器内部击穿故障及试验解体分析  

Internal Breakdown and Disassembly Analysis for 500 kV SF_6 Current Transformer

作　　者：邓文斌 唐华东 邱志远 

机构地区：[1]中国南方电网有限责任公司超高压输电公司贵阳局,贵州贵阳550081

出　　处：《电力电容器与无功补偿》2017年第5期92-95,共4页Power Capacitor & Reactive Power Compensation

基　　金：国家自然科学基金(51265006);广西科技开发项目(桂科攻1348005-11)

摘　　要：SF6电流互感器目前在500 k V以上电压等级变电站得到了广泛应用,一旦发生故障,将对电网的安全稳定运行造成很大影响。笔者介绍了2起TAG550型SF_6电流互感器在雷雨天气下发生内部击穿故障,并把2台在运的该型号电流互感器更换后,进行返厂试验与解体检查。根据试验与解体检查情况,分析了该型号SF_6电流互感器的故障原因并提出了应对措施。At present, SF6 current transformer has been used widely at 500 kV and above, which, in case of fault, will cause great influence on the safe and stable operation of power grid. In this paper, the two internal breakdown faults of TAG550 SF6 current transformer under thunderstorm weather are introduced, after the replacement of the same type of current transformer in the two unit, the back to factory test, the disassembly and inspection are carried out. The reason for the fault of the current transformer is analyzed and the corresponding measures are proposed in accordance with the test, disassembly and test situation.

关 键 词：SF6电流互感器 返厂试验 解体检查 

分 类 号：TM452[电气工程—电器]