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.
作者
孙帆
王维庆
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)
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
关键词
电流互感器
油浸倒立式
故障分析
绝缘缺陷检测
current transformer
oil immersed inverted type
fault analysis
insulation defect detection
作者简介
孙帆(1988-),男,高级工程师,主要从事电气设备状态检测、电力系统控制及新能源研究。E-mail:30375069@qq.com;王维庆(1959-),男,教授,研究方向为大型风力发电机组关键零部件的研制、整机智能控制及检测、电能转换、继电保护和并网送出技术,研发建立系列大型风电机组电能转换理论体系和工程应用技术;金铭(1987-),男,高级工程师,主要从事电力设备检测监测,电力系统防灾减灾等领域研究和工程技术工作;刘勇(1975-),男,高级工程师,主要从事电力系统过电压治理研究及技术开发。
