HU Yongfang, OUYANG Zhuo, LIU Binsheng. Analysis on an overheat fault of electromagnetic unit of 220 kV capacitive voltage transformer[J]. 2016, 36(4): 73-75+78.
HU Yongfang, OUYANG Zhuo, LIU Binsheng. Analysis on an overheat fault of electromagnetic unit of 220 kV capacitive voltage transformer[J]. 2016, 36(4): 73-75+78.DOI:
220kV电容式电压互感器电磁单元过热故障分析
摘要
文章介绍了电容式电压互感器的结构原理
分析了运行中的220kV电容式电压互感器电磁单元故障引起的过热现象
提出以红外检测技术为基础
结合停电诊断性试验的方法来进行联合故障诊断
诊断结果准确可靠
并对电容式电压互感器的现场检测和故障诊断提出了建议。
Abstract
The structure principles of capacitive voltage transformer( CVT) are introcluced and the overheating phenomena caused by internal fault of electromagnetic unit are analyzed in the paper. Based on infrared detection technology
a method combined with the power failure diagnostic test is proposed to diagnose the fault accurately and reliably. Finally some proposals on field detection and faults diagnosis of CVT are presented.