文档名:绝缘介质理化特性辅助油浸式电抗器故障定位及诊断
摘要:电抗器是电力系统中重要的无功补偿设备,在电抗器发生故障后及时分析其故障原因对于消除隐患、维护电力系统的稳定性和安全性具有重要意义.本文针对一起750kV油浸式电抗器色谱数据异常事件展开调查,首先采用三比值法结合离线色谱气体组分增长情况,初步判断该电抗器故障类型为电弧放电.随后停电将该电抗器退出运行,并运至检修基地吊罩检查,通过对解体后典型部位的绝缘纸进行理化特性表征及分析,精确区分绝缘纸上黑色痕迹的来源,精准定位发生故障的部位进而为查找故障根源提供技术支撑.本文通过分析电抗器绝缘介质的理化特性,精准定位故障的发生位点,加快故障分析进程,为后续油浸式电抗器的故障定位及诊断分析提供新思路.
Abstract:Thereactorisanimportantreactivepowercompensationequipmentinthepowersystem.Itisofgreatsignificancetoanalyzethecauseofthefaultintimeafterthefailureofthereactortoeliminatehiddendangersandmaintainthestabilityandsafetyofthepowersystem.Inthispaper,anabnormaleventofchromatographicdataofa750kVoil-immersedreactorisinvestigated.Firstly,combiningthegrowthofgascomponentsinofflinechromatography,thethree-ratiomethodisusedforthefaulttypeofthereactorwhichispreliminarilyjudgedtobearcdischarge.Subsequently,thepow-erfailurewithdrewthereactorfromoperationandtransportedtothemaintenancebaseforinspectionofthehanginghood,throughcharacterizationandanalysisofthephysicalandchemicalcharacteristicsofthetypicalpartoftheinsulationpaper,accuratelydistin-guishthesourceofblacktracesontheinsulationpaper,accuratelylocatethefaultpartandprovidetechnicalsupportforfindingtherootcauseofthefailure.Byanalyzingthephysicalandchemicalcharacteristicsoftheinsulatingmediumofthereactor,thispaperaccuratelylocatesthefaultoccurrencesite,acceleratesthefaultanalysisprocess,andprovidesnewideasforthefaultlocationanddiagnosisanalysisofsubsequentoil-im-mersedreactors.
作者:赵睿 景瑞斌 赵龙 陈宏刚 王永奇 马玲Author:ZHAORui JINGRuibin ZHAOLong CHEMHonggang WANGYongqi MALing
作者单位:国网甘肃省电力公司电力科学研究院,甘肃兰州730070
刊名:变压器
Journal:Transformer
年,卷(期):2024, 61(4)
分类号:TM406
关键词:油浸式电抗器 色谱异常 绝缘纸 故障诊断
Keywords:Oil-immersedreactor Chromatographicabnormality Insulatingpaper Faultdiagnosis
机标分类号:TM711TM41P458.121.1
在线出版日期:2024年4月23日
基金项目:绝缘介质理化特性辅助油浸式电抗器故障定位及诊断[
期刊论文] 变压器--2024, 61(4)赵睿 景瑞斌 赵龙 陈宏刚 王永奇 马玲电抗器是电力系统中重要的无功补偿设备,在电抗器发生故障后及时分析其故障原因对于消除隐患、维护电力系统的稳定性和安全性具有重要意义.本文针对一起750kV油浸式电抗器色谱数据异常事件展开调查,首先采用三比值法结合...参考文献和引证文献
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