【英文标准名称】:Eurocode3:Designofsteelstructures-Part3-1:Towers,mastsandchimneys-Towersandmasts;GermanversionEN1993-3-1:2006+AC:2009
【原文标准名称】:欧洲规范3:钢结构设计.第3-1部分:塔,桅杆和烟囱.烟囱和桅杆;德文版本EN1993-3-1-2006+AC-2009
【标准号】:EN1993-3-1-2009
【标准状态】:现行
【国别】:
【发布日期】:2010-12
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Buildings;Chimneys;Construction;Controlling;Definitions;Design;Dimensioning;Eurocode;Loadcapacity;Masts;Mathematicalcalculations;Mechanicalproperties;Safetyrequirements;Statics;Steelconstruction;Structuralengineeringdrawings;Structuralsteelwork;Structuralsteels;Structures;Towers;Trusses
【摘要】:
【中国标准分类号】:Q73;P26
【国际标准分类号】:91_010_30;91_060_40
【页数】:80P;A4
【正文语种】:英语


【英文标准名称】:Rotatingelectricalmachines-Part12:Startingperformanceofsingle-speedthree-phasecageinductionmotors
【原文标准名称】:旋转电机.第12部分:单速三相笼型感应电动机的起动性能
【标准号】:IEC60034-12Edition2.1-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-09-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC2
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;电机;电动机;电气工程;加热;感应电动机;旋转;旋转电机;鼠笼式电动机;起动性能;测试;三相电流;三相电动机
【英文主题词】:Definition;Definitions;Electricmachines;Electricmotors;Electricalengineering;Heating;Inductionmotors;Rotating;Rotatingelectricmachines;Squirrel-cagemotors;Startingperformance;Testing;Three-phasecurrent;Three-phasemotors
【摘要】:ThisInternationalstandardspecifiestheparametersforfourdesignsofstartingperformanceofsingle-speedthree-phase50Hzor60HzcageinductionmotorsinaccordancewithIEC60034-1that:?havearatedvoltageupto1000V;?areintendedfordirect-on-lineorstar-deltastarting;?areratedonthebasisofdutytypeS1;?areconstructedtoanydegreeofprotection.Thestandardalsoappliestodualvoltagemotorsprovidedthatthefluxsaturationlevelisthesameforbothvoltagesandtomotorshavingtypeofprotection'e–increasedsafety'withtemperatureclassesT1toT3complyingwithIEC60079-0andIEC60079-7.NOTE1Itisnotexpectedthatallmanufacturerswillproducemachinesforallfourdesigns.Theselectionofanyspecificdesigninaccordancewiththisstandardwillbeamatterofagreementbetweenthemanufacturerandthepurchaser.NOTE2Designsotherthanthefourspecifiedmaybenecessaryforparticularapplications.NOTE3Thevaluesoftorqueandapparentpowergiveninthisstandardarelimitingvalues(thatis,minimumormaximumwithouttolerance),butitshouldbenotedthatvaluesgiveninmanufacturers'cataloguesmayincludetolerancesinaccordancewithIEC60034-1.NOTE4Thevaluestabledforlockedrotorapparentpowerarebasedonr.m.s.symmetricalsteadystatelockedrotorcurrents;atmotorswitchontherewillbeaone-halfcycleasymmetricalinstantaneouspeakcurrentwhichmayrangefrom1,8to2,8timesthesteadystatevalue.Thecurrentpeakanddecaytimeareafunctionofthemotordesignandswitchingangle.
【中国标准分类号】:K20
【国际标准分类号】:29_160_30
【页数】:24P.;A4
【正文语种】: