yb2(南阳防爆电机)

11SeriesYB2FlameproofThreePhaseInductionMotorsFramesize63355NANYANGEXPLOSIONPROTECTIONGROUPCO.,LTD.221GeneralDescriptionSupersedingtheoldgenerationofseriesYB,seriesYB2flameproofthreephaseinductionmotors,thebasicseriesofflameproofmotors,aredevelopedandmanufacturedbyourcompany.Thisseriesmotorsareofremarkablefeatures,suchascompactconstruction,lightweight,attractiveappearance,safeandreliableoperation,longoperationlife,excellentperformanceandeasymaintenance.Forthisseriesmotors,theoutputratingsandmountingdimensionsconformtothespecificationsofIECstandardsandthecorrelationbetweenthembasicallyagreeswithEIN42673.Themotorsareeasytocompletewithexportmachineryandequipmentandtosupplyasspareaccessoriesintheimportequipment.ThisseriesmotorsaredesignedandmanufacturedintoflameprooftypeandtheflameproofpropertyconformstoChinaNationalStandards:GB3836.1-2000ElectricalApparatusforExplosiveGasAtmospheresGeneralRequirementsGB3836.2-2000ElectricalApparatusforExplosiveGasAtmospheresFlameproofEnclosure“d”andstandardsIEC79-1,BS4683andEN50018.Theexplosionprotectionmarksare.Theyaresafetouseinthelocationswherethereareexplosivemixturesofgas-andvapor-air.“d”---safeforuseinthenon-miningsurfacesofundergroundcoalmineswheretheexplosivemixturesofmethaneorcoal-dustarepresent.“dAT4”---safeforuseinplantswheretheexplosivemixturesofAClass,TI,T2,T3orT4arepresent.“dBT4”---safeforuseinplantswheretheexplosivemixturesofBClass,TI,T2,T3orT4arepresent.“dCT4”---safeforuseinplantswheretheexplosivemixturesofCClass,TI,T2,T3orT4arepresent.33BasedonseriesYB2motors,themotorscanalsobemanufacturedforspecialenvironments,suchasoutdoorlocations(YB2-Wtype),indoortropicalhumidity(YB2-THtype),outdoortropicalhumidity(YB2-WTHtype),indoortropicalarid(YB2-TAtype),outdoortropicalarid(YB2-WTAtype),indoortropical(YB2-Ttype),outdoortropical(YB2-WTtype)andoutdoormiddle-class-chemicalcorrosionlocations(YB2-WF1type).ExplanationofExmarkinganddesignation:Mark(explosionprotection)TemperaturegroupTypeofexplosionprotectionElectricalapparatusclass(Flameprooftype)(ClassB)Explanationoftypedesignation:InductionmotorCodeofspecialenvironmentFlameproofNumberofpolesModifiedforthesecondtimeCodeofcorelengthShaftcenterheight(mm)Codeofframelength(S-short,M-middleandL-long)442ConstructionFeatures2.1Theflameproofconstructionsford,dAT4anddBT4areavailable.2.2ThedegreeofprotectionisIP55formotormainenclosures2.3ThecoolingformisIC411.2.4ThestatorwindingsareofClassFinsulationandensuresalargemarginofsafetyintemperatureriseandlongservicelife.2.5Acylindricalshaftextensionisequippedonmotors,whichisdrivenbycouplingorspurgearing.2.6Thestatorwindingsarewoundwithpolyesterenamelroundwireofhighstrengthandthentreatedwiththeprogressofvacuum-pressureimpregnation(VPI),tomakethembecomeasolidintegral.Therefore,thewindinginsulationisexcellentinelectricalandmechanicalproperties,moistureresistanceandthermalstability.2.7Therotorsareofcast-aluminum,anddynamicallybalancedtomakethemotoroperatesmoothlywithsmallvibrationandlownoise.2.8Thestatorandrotorcoresarelaminatedwithhigh-classelectricalsteelsheetwithhighpermeabilityandlowloss,thusmakesthemotorspossesslowlossandhighefficiency.2.9Themotorsarefittedwithlowvibrationandlownoisebearingsspecialformotors.Forthemotorsofframesize132andbelow,bilaterallyshieldedballbearingsareusedandcorrugatedspringwashersatthedrivingendspressedonbearingswithproperpressuretorestraineffectivelythevibrationandnoiseproducedduringmotors’operation.Forthemotorsofframesize160andabove,thebearingswithinnerandoutercoversareusedandretainingringsatbearingpositionareequippedonshaftstopreventtherotorefficientlyfrommovingaxially.Inordertooperatesafelyandreliably,thebearingsofthemotorsframesize160andaboveareprovidedwithgreasingattachments,whichareoftheusetodrainorreplenishthelubricatinggreasewithoutstoppingthemotors.Fortheframesize250andabove,thepositionsformountingbearingtemperaturemonitoringcensersarepreliminaryleft.2.10Forthemotorsofframesize280andbelow,thefansaremadeoffrictionalelectricproofplastic,beingofsmallinertiamovementandlowlosscharacterize.However,forthemotorsofframesize315andabove,thecast-aluminumorsteel-plate-weldedfansarefittedwhichareoflightweightandhighstrength.Forthewholeseriesmotors,thefansarekey-jointedontheshafttomakethemotoroperationsafelyandreliably.Thecowlsaremadeoffabricatedsteelplate.Onaprerequisiteofpreventingfromtheingressofsolidsubstancesofcertainsize,theyenablethemotorstogetmaximumareaofventilationinordertoformadequatecurrents.553ServiceConditions3.1ElectricalConditions3.1.1Ratedvoltage:3.1.2Ratedfrequency:50Hz.3.1.3Dutytype:continuousrunningduty-typeS1.3.2CircumstanceConditionsThealtitudeisupto1000mabovesealevel.Theambienttemperature,whichissubjecttoseasonalvariation,belongstoindoorcircumstanceof20+40YB2isthebasictype,suitableforindoorcircumstance,YB2-Wforoutdoorcircumstance,YB2-THforindoortropicalhumiditycircumstance,YB2-WTHforoutdoortropicalhumiditycircumstance,YB2-TAforindoortropicalaridcircumstance,YB2-WTAforoutdoortropicalaridcircumstance,YB2-Tforindoortropicalcircumstance,YB2-WTforoutd