摘要
介绍一起110kV电流互感器介质损耗和电容量带电测试发现的绝缘缺陷情况,从带电油色谱、停电试验、设备解体等方面分析缺陷产生的原因,认为电流互感器视窗处丁腈胶垫老化是故障主要原因,并提出防范措施,保证了电流互感器的安全运行。
This paper introduces an insulation defect of a 110 kV current transformer which has been detected by online measurement of dielectric loss and capacitance.Based on the results of equipment routine tests,online oil chromatography analysis and equipment disintegration analysis,considers that the cause of this insulation defect is an insulation aging issue of inner parts of this current transformer,and provides the preventive methods,which have a practical significance to the safe operation of current transformers.
出处
《河北电力技术》
2015年第3期57-59,共3页
Hebei Electric Power
关键词
电流互感器
介质损耗
电容量
带电测试
current transform
dielectric loss
capacitance
online measurement
