油浸型倒立式电流互感器内绝缘缺陷特征及检测方法  

Inner Insulation Defect Characteristic and Detection Method of Oil Immersed Inverted Current Transformer

作　　者：孙帆 王维庆[1] 金铭 刘勇 SUN Fan;WANG Weiqing;JIN Ming;LIU Yong(Engineering research center of Renewable Energy Power Generation and grid-connected control,Ministry of Education,Xinjiang University,Urumchi 830000,China;State Grid Xinjiang Electric Power Company Limited,Urumchi 830011,China;Anhui Zhengguang Electric Power Technology Co.,Ltd.,Hefei 230000,China)

机构地区：[1]新疆大学可再生能源发电与并网控制教育部工程研究中心,乌鲁木齐830000 [2]国网新疆电力有限公司,乌鲁木齐830011 [3]安徽正广电电力技术有限公司,合肥230000

出　　处：《电力电容器与无功补偿》2025年第2期120-126,共7页Power Capacitor & Reactive Power Compensation

摘　　要：油浸型倒立式电流互感器是典型的少油设备,长期运行于高电场强度环境下,其绝缘工艺控制难度大,导致因绝缘问题诱发的爆炸、喷油故障多发。本文以油浸型倒立式电流互感器故障分析为切入点,分析了绝缘缺陷产生的原因,对存在缺陷的设备开展气相色谱分析、局部放电检测、高电压介质损耗试验、长时额定电压红外测温测试,最后对测试结果进行了缺陷特征分析,并对在运设备提出合理化缺陷检测方法。The oil immersed inverted current transformer is a typical minimum oil equipment.Under the long term operation in the environment of high electric field intensity,its insulation process control is difficult,leading to frequent explosions and oil injection faults due to insulation.In this paper,the fault analysis of the oil immersed inverted current transformer is taken as the starting point to analyze the causes of insulation defects.The gas chromatography analysis,partial discharge detection,high voltage dielectric loss test and long-term rated voltage infrared temperature measurement test are performed on the defective equipment.Finally,the defect characteristics of the test results are analyzed and a reasonable defect detection method is proposed for the equipment in operation.

关 键 词：电流互感器 油浸倒立式 故障分析 绝缘缺陷检测 

分 类 号：TM452[电气工程—电器]