简介:OnDecember28,2000,theretrofittingprojectbyusing410t/hCFBCboilerinFengyiPowerPlant,JiangxiProvincewasstartedformally,whichindicatesthattheresearchanddevelopmentofcleancoalcombustiontechnologyinChinahasmadeasignificantbreakthrough.The410t/hCFBCboileradoptedint
简介:AfterriverclosinginNovember2002,thephaseIIIproject(rightbankpowerstation)willproceedinfullswing.Foraseriesofconstructionandinstallationworksfocusingonriverclosingfrompreparationtoimplementation,safetymonitoringandrightbankpowerhousecivilconstruction,invitation
简介:AnexclusiveinterviewwiththeauthorwaspublishedinIssue2,2010ofthisjournal,inwhichthestartingpointandmacro-strategytoconstructsmartgridinChinawaspresented.Meanwhile,thethreeperiodsofsmartgridconstructionwerealsomentioned,namelyplanningandpilotprojectconstructionperiod,overallconstructionperiod,andimprovingandupgradingperiodasitisplannedbySGCC.Attheinvitationofthisjournal,theauthorwroteanarticlefurtherintroducingtheimplementationinthefirstperiodofSGCCsmartgridprogram.Thearticlewillbepublishedintwoconsecutiveissues.
简介:OnOctober15,2001,No.7generatingunitofYunnanXuanweiPowerGenerationCorp.5thphaseprojectwassuccessfullyputintooperationandconnectedtothepowernetwork.Hitherto,XuanweiPowerPlant5thphaseextensionprojectwaswhollycompleted.XuanweiPowerPlant5thphaseextensionprojectis
简介:Powerreliabilitypromotedin1sthalfof1997Fromthestatisticsof27municipalitiesandprovincialcapitalscollectedbythePowerReliability...
简介:Helicopterinspectionofultrahighvoltage(UHV)transmissionlineshasunmatchedadvantagescomparedtomanualworkduetotheinspectionangleandhigh-techequipmentonboard,especiallyindetailedinspectionsoftowerheadsanddefect-detectionsinvirtueofinfrared/ultraviolettechniques.Thispaperdealswithsomekeytechnicalproblemsintheinspectionsof1000kVUHVAClineswithahelicopter,suchasthesafedistanceoflive-lineworking,electromagneticfieldintensityandflightcontrol.Basedonthestudyresults,asetofUHVlineinspectionmethodswasworkedoutandappliedtotheinspectionofliveUHVlines.
简介:本文叙述了检测感应电机笼型转子中断条的技术。一台30马力带有深导条笼型转子的四极感应电机是从加拿大通用电气公司获得的。安装了用于试验目的的定子磁轭,齿尖与外探查线圈,以及热电偶。将轴转矩传感器与直流负载电机安装成一条直线。用有限元来模拟该电机的横截面,并用非线性多元的稳态技术来计算场分布及机械性能。断条的出现产生局部的高气隙磁场并降低了机械性能。磁场的波动与断条有关,通过机械加工有意地使其与端环分开,波动的磁场在探查线圈感应的电压中产生低频分量与谐波并产生振荡力矩,而它又引起噪声与机械振动。实验结果表明对外探查线圈中感应的电压的分析足以检测断条的存在与否。
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简介:Co-hostedbyChinaSocietyforHydropowerEngineeringandChinaThreeGorgesProjectCorporation,co-organizedbyChinaHydropowerEngineeringConsultingGroupCorporation,SINOHYDROCorporation,ChinaGezhouba(Group)CorporationandChinaInstituteofWaterResourcesandHydropowerResearch,organizedbyChinaElectricPowerInformationCenterBeijingZhongdianqiuzhenT&DCo.,Ltd.,supportedbyStateElectricityRegulatoryCommissionofChina,StateGridCorporationofChina,ChinaSouthernPowerGridCo.,Ltd.,ChinaHuaneng
简介:电机被广泛应用于石油化工工业,大部分电机都在I级危险地点运行。因此,了解确保不会点燃易爆性气体,必须对电机采取恰当的防护措施,有4种适用于大型电机的防护型式;P型(通风及正压型),e型(增安型),d型(防爆型)和N型,P型,e型和d型防护型式允许在1级和2级地区使用。在1996年和1999年,为了符合有关ExeⅡB200℃(T3)要求及IEC60079-0和60079-7标准,设计并试验了两台电机,这2台电机安装在2类地区,本文陈述了有关增安型感应电机的电气和机械设计考虑。最后,本文还叙述了试验程度,并对两台电机所进行的一系列试验的结果作了总结。