特高压直流换流站支柱绝缘子设计.pdf

31! 24" #$%& Vol. 2007'12( Power SystemTechnology Dec. 2007 !"#$1000-3673%2007&24-0001-06 '()*#$TM216) +,-.$A /01.*470·4037 234567689:;<=>? !" 1#$%& 2#' ( 3 1!"#$%&'()*+,-./0123410003152!6"$789:;<. /01=>410008553. "%?***@AB+,CD&'./01E34100005F onverterStation GUOXian-shan -yi 3 1!UHVConstruction Departmentof . 2!China ElectricPower Research 3+State Grid DCProject pany , ABSTRACT:Theexternalinsulationdesignisoneofthekey technologiesinultrahighvoltagedirectcurrent(UHVDC) power transmissionprojects andmaydirectlyimpactthesecure typeselectionanddesignofpostinsulatorsforconverter stationinUHVDCprojectaretheprincipalcontentofthis ,thestatisticaldataofoperationsituationof externalinsulationindomestic ±500kVconverterstationsis given,themainmeasurestoenhancetheexternalinsulationof ±500kVconverterstationandpreventpollutionflashoverare summarized, theperformance and features of room temperature vulcanizedsiliconerubber(RTV)andpermanent RTV(PRTV) ,basedonthetestresults umulationstationandtheforecastedpollution onverterstationwill beconstructedisforecasted,accordingtotheforecasted pollutionlevelandtheresultsoflaboratorypollution peepagedi