220 kV油浸式电流互感器缺陷案例分析

Case Analysis of 220 kV Oil-immersed Current Transformer Defect

针对某220 kV变电站油浸式电流互感器带电检测数据异常事件,应用红外测温、相对介质损耗检测等技术,查找设备缺陷,通过对该设备解体,发现缺陷产生的根本原因。根据此次带电检测数据与设备解体分析结果,对同型号设备进行排查,并提出了处理方法和整改建议。

In allusion to an accident of abnormal live detection data of an oil-immersed current transformer in a certain 220 kV substation,technologies such as infrared temperature measurement and relative dielectric loss live detection are used to find out the defect of the equipment,and the primary cause of the defect is found by equipment disassembly.Based on the analysis of the live detection data and the results of equipment disassembly,the equipments of the same type are checked,and the treatment methods and improvement suggestions are put forward.