输电线路绝缘子串防冰闪措施研究.doc:1000・3673(2008)14・0019・06 中图分类号:TM852 文献标识码:A学科代码:470•40蒋兴良卢杰1,苑吉河2,罗利云3,张志劲1((重庆大学),重庆市沙坪坝区400044; 2•南岸供电局,重庆市南岸区400060;3•江西省电力公司超高压分公司,江西省南昌市330006)StudyonMeasurestoPreventIcingFlashoverofInsulationStringsJIANGXing-liangl,LUJiel,YUANJi-he2,LUOLi-ycm3,ZHANGZhi-jinl(&SystemSecurityandNewTechnology(ChongqingUniversity),ShapingbaDistrict,Chongqing400044,China;'anPowerSupplyBureau,Nan'anDistrict,Chongqing400060,China;,JiangxiElectricPowerCorporation,Nanchang330006,JiangxiProvince,China)ABSTRACT:InJanuaryandFebruary2008,,thusthepreventionoficingflashoverofinsulatorstringsissigrdficantforthesecureoperationoftransmissionlineslocatedinice・,paresthecharacteristicofmeasurestopreventicingflashoverofinsulatorstringsoftransmissionlines,;itisalsopointedoutthatinsomemeasurestopreventicingflashover;thePRTVcoating(permanentroomtemperaturevulcanizedanti-positecoating)cannoteffectivelypreventicecoatingoninsulatorsurface,meanwhil巳PRTVcoatingmayreducetheicingflashovervoltageofinsulators,-posedbyinsulatorswithlargerandsmallersheddiametersalternativelycaneffectivelyincreasetheicingflashovervoltageofinsulatorstrings,sotheyarepracticableapproachesforthedesignandrenovationoftransmissionlinesinice・:transmissionlines;icingandsnowingdisaster;insulatorstrings;ice-coating;flashover基金项冃:国家自然科学基金资助项冃(90210026)oProjectSupportedbyNationalNaturalScieneeFoundatio
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