【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part4-1:Contactorsandmotor-starters;Electromechanicalcontactorsandmotorstarters
【原文标准名称】:低压开关设备和控制设备第4部分:接触器和电动机起动器第1节:机电式接触器和电动机起动器
【标准号】:IEC60947-4-1-2000
【标准状态】:作废
【国别】:国际
【发布日期】:2000-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC17B
【标准类型】:()
【标准水平】:()
【中文主题词】:辅助接触器;文字书写;起动器;短路保护;试验;安装说明书;分类系统;开关设备;开关设备;电动机起动器;过载保护装置;控制装置;;;机电装置;电气工程;开关能力;使用说明;规范(验收);检验;分类;接触器;操作说明书;产品信息;作标记;低电压;电动机;低压设备;特性;特性;电子工程;低压开关设备;定义;定义;电起动器;试验;试验;试验
【英文主题词】:Abilitytoswitch;Applications;Auxiliarycontactors;Characteristics;Classification;Classificationsystems;Contactorrelays;Contactors;Contactorsformotors;Controldevices;Criterion;Definitions;Degreeofsharpness;Electricmotors;Electricstarters;Electricalengineering;Electromagneticcompatibility;Electromechanical;Electromechanicaldevices;Electronic;Electronicengineering;EMC;Frequencies;Handlings;Inscription;Inserts;Inspection;Installations;Instructionsforuse;Interferencerejections;Interferingemissions;Letterings;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Maintenance;Marking;Miscellaneousfunctions;Motorstarters;Operatinginstructions;Operation;Overloadprotection;Overloadrelays;Productinformation;Properties;Radiation;Set-upinstructions;Short-circuitprotection;Shutdown;Specification(approval);Starters;Switchgear;Switchgears;Switchingpower;Take-off;Testing
【摘要】:ThispartofIEC60947appliestothetypesofequipmentlistedin1.1and1.2whosemaincontactsareintendedtobeconnectedtocircuitstheratedvoltageofwhichdoesnotexceed1000Va.c.or1500Vd.c.Startersand/orcontactorsdealtwithinthisstandardarenotnormallydesignedtointerruptshort-circuitcurrents.Therefore,suitableshort-circuitprotection(see9.3.4)shallformpartoftheinstallationbutnotnecessarilyofthecontactororthestarter.Inthiscontext,thisstandardgivesrequirementsfor:-contactorsassociatedwithoverloadand/orshort-circuitprotectivedevices;-startersassociatedwithseparateshort-circuitprotectivedevicesand/orwithseparateshort-circuitandintegratedoverloadprotectivedevices;-contactorsorstarterscombined,underspecifiedconditions,withtheirownshort-circuitprotectivedevices.Suchcombinations,e.g.combinationstarters(see3.2.7)orprotectedstarters(see3.2.8)areratedasunits.Circuit-breakersandfuse-combinationunitsusedasshort-circuitprotectivedevicesincombinationstartersandinprotectedstartersshallcomplywiththerequirementsofIEC60947-2andIEC60947-3,asthecasemaybe.Equipmentcoveredbythisstandardisasfollows.1ACandd.c.contactorsACandd.c.contactorsintendedforclosingandopeningelectriccircuitsand,ifcombinedwithsuitablerelays(see1.2),forprotectingthesecircuitsagainstoperatingoverloadswhichmayoccurtherein.NOTEContactorscombinedwithsuitablerelaysandwhichareintendedtoprovideshort-circuitprotectionshalladditionallysatisfytherelevantconditionsspecifiedforcircuit-breakers(IEC60947-2).Thisstandardappliesalsototheactuatorsofcontactorrelaysandtothecontactsdedicatedexclusivelytothecoilcircuitofacontactor.Contactorsorstarterswithanelectronicallycontrolledelectromagnetarealsocoveredbythisstandard.2ACmotor-startersACmotor-startersintendedtostartandacceleratemotorstonormalspeed,toensurecontinuousoperationofmotors,toswitchoffthesupplyfromthemotorandtoprovidemeansfortheprotectionofmotorsandassociatedcircuitsagainstoperatingoverloads.StarterstheoperationofwhichdependsonthermalelectricalrelaysformotorprotectioncomplyingwithIEC60255-8,ormotor-incorporatedthermalprotectivedevicesdealtwithinIEC60034-11donotnecessarilymeetalltherelevantrequirementsofthisstandard.Overloadrelaysforstarters,includingthosebasedonsolidstatetechnology,shallmeettherequirementsofthisstandard.2.1Direct-on-line(fullvoltage)a.c.startersDirect-on-linestartersintendedtostartandaccelerateamotortonormalspeed,toprovidemeansfortheprotectionofthemotoranditsassociatedcircuitsagainstoperatingoverloads,andtoswitchoffthesupplyfromthemotor.Thisstandardappliesalsotoreversingstarters.2.2Reducedvoltagea.c.startersReducedvoltagea.c.startersintendedtostartandaccelerateamotortonormalspeedbyconnectingthelinevoltageacrossthemotorterminalsinmorethanonesteporbygraduallyincreasingthevoltageappliedtotheterminals,toprovidemeansfortheprotectionofthemotoranditsassociatedcircuitsagainstoperatingoverloads,andtoswitchoffthesupplyfromthemotor.Automaticchange-overdevicesmaybeusedtocontrolthesuccessiveswitchingoperationsfromonesteptotheothers.Suchautomaticchange-overdevicesare,forexample,time-delaycontactorrelaysorspecifiedtimeall-or-nothingrelays,under-currentdevicesandautomaticaccelerationcontroldevices(see5.10).2.2.1Star-deltastartersStar-deltastartersintendedtostartathree-phasemotorinthestarconnection,toensurecontinuousoperationinthedeltaconnection,toprovidemeansfortheprotectionofthemotoranditsassociatedcircuitsagainstoperatingoverloads,andtoswitchoffthesupplyfromthemotor.Thest
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:177P.;A4
【正文语种】:英语