第45卷第3期2023年6月D0I:10.13625/j.cnki.hljep.2023.03.003黑龙江电力HeilongjiangElectricPowerVol.45No.3Jun.2023220kV输电线路在运复合绝缘子老化性能研究葛利宏',郑建军23,肖占海4(1.内蒙古电力(集团)有限责任公司,呼和浩特010020;2.内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司,呼和浩特010020;3.内蒙古自治区高电压与绝缘技术企业重点实验室,呼和浩特010020;4.内蒙古电力(集团)有限责任公司锡林郭勒供电分公司,内蒙古锡林郭勒026000)摘要:利用X射线数字成像技术、宏观形貌及微观形貌观察、憎水性测试、EDS能谱检测、带护套染色渗透试验、傅里叶红外光谱检测、拉伸试验等方法,对抽取的蒙西电网某220kV输电线路2支在运复合绝缘子的材料老化性能进行综合分析。研究结果表明,2支复合绝缘子样品低压侧伞裙粉化程度较高,这主要与低压侧伞裙受光照作用较明显有关;2支复合绝缘子样品均存在因电应力作用而导致的高压侧伞裙老化程度较高现象;相比于1号复合绝缘子,2号复合绝缘子老化程度更高,且个别伞裙还出现了硬化弯曲。关键词:复合绝缘子;伞裙;憎水性;老化性能中图分类号:TM726.3Studyontheagingperformanceofcompositeinsulatorsinoperationfor220kVtransmissionlineGELihong',ZHENGJianjun'",XIAOZhanhait.4文献标志码:A文章编号:2095-6843(2023)03-0199-05(1.InnerMongoliaElectricPower(Group)Co.,Ltd.,Hohhot010020,China;2.InnerMongoliaPower(Group)Co.,Ltd.,InnerMongoliaPowerResearchInstituteBranch,HohhotO10020,China;3.InnerMongoliaEnterpriseKeyLaboratoryofHighVoltageandInsulationTechnology,Hohhot010020,China;4.InnerMongoliaPower(Group)Co.,Ltd.,XilingolPowerSupplyBranch,Xilingol026000,China)Abstract:Theagingpropertiesoftwocompositeinsulatorsservicedina220kVtransmissionlineofMengxipowergridarecomprehensivelyanalyzedbymeansofX-raydigitalimagingtechnology,macroandmicromorphologyobservations,hydrophobicitytest,EDSenergyspectrumdetection,dyepenetrationtestwithsheath,Fourierinfraredspectrumdetectionandtensiletest.Theresultsshowthatthepowderingdegreeofthelow-voltagesideshedforthetwocompositeinsulatorsamplesisrelativelyhigh,whichismainlyrelatedtotheobviouseffectoflighting.Besides,bothcompositeinsulatorsampleshaveahighdegreeofagi...