750 kV并联电抗器油色谱异常故障诊断及分析 

王永奇，王怀祥，李明，周家戌，常永哲 
（国网甘肃省电力公司电力科学研究院，甘肃 兰州 730050） 
 

摘 要： 介绍了一起750 kV 并联电抗器出现油色谱监测数据严重异常的故障，分析了故障产生的原因，利用特征气体、大卫三角和改良“三比值”等油色谱分析手段，结合诊断性电气试验，成功诊断出了该电抗器故障是属于放电性故障，经过吊罩检查分析，电抗器内部放电是由于地脚螺栓松动引起的，给出了应对措施，为故障处理提供了方案。
关键词： 电抗器；油色谱分析；故障诊断；处理
中图分类号：TM471+.2 文献标识码：B 文章编号：1007-3175(2015)03-0052-03

Fault Diagnosis and Analysis of Abnormal Oil Chromatographic of 750 kV Shunt Reactors 

WANG Yong-qi, WANG Huai-xiang, LI Ming, ZHOU Jia-xu, CHANG Yong-zhe 
（Electric Power Research Institute of Gansu Electric Power Corporation, Lanzhou 730050, China） 
 

Abstract: Introduction was made to the abnormal oil chromatographic monitoring data fault that happened to 750 kV shunt reactors. This paper analyzed the reasons of the faults, took oil chromatographic analysis methods, such as characteristic gas, Duval’s triangle and improved three-ratio and combined with diagnostic electrical test, to successfully diagnose that the reactor fault belonged to discharging fault. By making inspection and analysis to the hoisting cover, prevention measures have been made to avoid the inner discharge of reactors caused by the looseness of anchor bolts, which provides the solution for faults treatment.
Key words: reactor; analysis of oil chromatographic; malfunction diagnosis; treatment

参考文献
[1] 李德志，曹宏伟，朱华，等.电力变压器油色谱分析及故障诊断技术[M].北京：中国电力出版社，2013.
[2] 田成凤.一台220 kV变压器油色谱异常的分析与处理[J].天津电力技术，2009(2)：27-31.
[3] 耿基明，郭晓峰.应用变压器油色谱分析判断变压器故障[J].变压器，2006，46(11)：44-46.
[4] 王楠，王军亮.110 kV变压器油色谱异常故障的分析[J].电力安全技术，2014，16(5)：40-43.