摘要
InJanuary2008,asuddendisastercausedbyicingandsnowinghappenedinlargeareasofCentralChinaandSouthChina.TheequipmentsofHunanpowergridwereseriouslydamagedduringtheicingandsnowingdisaster.AnexpertgroupfromChinaElectricPowerResearchInstitute(CEPRI)wasorganizedandwenttoHunanprovinceforfieldinvestigation.Asasummaryofthisinvestigation,thispaperintroducespowerequipmentdamages,suchasflashovercausedbyicing,collapseoftowers,conductorbreakageanddamageofsubstationequipments.Thecountermeasuresadoptedforthisicingandsnowingdisasterarealsosummarized.Theanalysisshowsthattheraremeteorologicalconditionisthemainreasonforlarge-areadamageofHunanpowergrid.IntheicingdisasterofHunanpowergrid,theicethicknessgreatlyexceedsthepermissiblelimitofdesign,thusitisnecessarytoimprovethedesignparametersreasonablytoagainsticingoftransmissionlines,andthedesignofexternalinsulationandtheanti-icingtechnologyforsubstationsarealsoneedtobeenhanced.
出版日期
2008年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
