说明书(英文版)

Thisoperationinstructionissuppliedtogetherwiththeorderedmotor.Ithasdemonstratedthe

requirementsandthecautionsofthestructure,storageandtransportation,installation,aswellasthe

requirementsandcautionsaboutoperationandmaintenance.Thestipulationsinthisinstructionsandthe

ratingplate,markplate,warningplate,aswellastheoutlinedrawing,shouldbecarefullyreadbythe

professionaltechniciansandstrictlyperformed.Onlywhenprofessionaltechniciansshouldbetrainedand

getqualifiedcertificatescouldtheyworkontheseposts.

Onlythemotorisassembled,operatedandmaintainedstrictlyaccordingtothestipulationsintheoperation

instruction,outlinedrawing,ratingplate,markplate,wiringplateandcautionsplate,doesthewarrantyof

XiangtanMfg.GroupLtd.Comeintoeffect.

Itisimpossibleforthisinstructionholdalltheprobableproblemsoccurringinassembling,runningand

maintenance.Fortheseproblemsnotincludingintheinstructionandtheoutlinedrawing,pleasedirectlycontact

withXiangtanElectricMfg.Group.Ltd.

1GeneralDescription

1.1Theoperationinstructionisappliedtothe3-Phaseasynchronousmotorandthederivedproductsof

H355~630serialforcommonapplication.

1.2Themountingarrangementis1MB3.

1.3Enclosure

Theusualenclosuremodesinclude:IP22,IP23,IPW23,IPW24,IP44,IP54andIP55.

1.4CoolingMode

Theusuallycoolingmodesinclude:IC01,IC11,IC21,IC31,IC37,IC611,IC81W,IC86W.

1.5Rotatingdirection

1.5.1Themarkplateofrotatingdirectionisnailedontheendshieldatshaft-extensionend.Theshaftshould

rotateaccordingtothestipulateddirection,reverseisnotallowed.

1.5.2Themotorwithoutrotatingdirectionmarkplate,wiringsequenceaccordingtothesequenceofphase

U.V.W,shouldrotateclockwiseseenfromtheshaft-extensionend.Itcanrotatecounterclockwise,butmust

reverseafterthemotor’sstop,brakingbyreverselywiringbeforethemotor’sstopisforbidden.

2ConstructionDescription

2.1Formofconstruction

Eitherforsquirrel-cageorwoundtypemotoravarietyofconstructionsmaybeofferedsuchasself-ventilated

type,air-to-airorwater-to-aircoolertype,pipe-ventilatedtypeandexternalfan-ventilatedforcedair-cooled

type.Thetypicalstructuresofmotorsareshownonfig.1,fig.2,fig.3,fig.4,fig.5,fig.6.

2.1.1Fig.7,fig.8,fig.9showthetypicalassemblysamplesofthemotorwithslidingbearingandexternalfan-

ventilatedair-cooledtypemotor.

2.1.2Regardlessofwhichconstructiontypeofmotors,allconsistsofthemaincomponentsofstator,rotor,frame,

endshields,bearingsandterminalbox,etc.

2.1.3Self-ventilatedtypemotorsarefurnishedwithahoodindegreeofprotectionIP23at

theframetop.Accordingtothecustomers’requirements,thetophoodcouldbeindegreeofprotectionofIPW23

andIPW24.

2.1.4Forthetypeofair-aircoolingmotor,onthetopofwhoseframeaair-aircoolerismounted,andatthenon-

shaftextensionortheshaftextensionendanexternalfanandafanhousingaremounted,ortheair-aircooleris

withacoolingfanitself.Fortheoutdoormotoratthecooler’sairoutletafanhousingismounted.

2.1.5Atthetopoftheframeofthewater-aircoolingtypemotor,awater-aircoolerismounted,orwatercooler

iswithacoolingfanitself.

2.1.6Forthepipe-ventilatedcoolingtypemotor,atthetopoftheframe,theairinletandtheairoutletpipeare

mounted,oronlythetopprotectioncoverforeitherofthemismounted.

2.1.7Thereisaslipringmountedonthenon-shaftextensionendofthewound-rotormotor.

2.1.8Normallyamotorhasonlyoneshaftextension,butitcanalsohavetwoshaftextensions.Facingthe

terminalbox,theleftisthemainshaftextensionwhiletherightisthesubsidiaryshaftextension,iftheterminal

boxismountedonanotherside,itisjustonthecontrary.Intheconstruction,thewordof“non-shaftextension

end”referstothesubsidiaryshaftextensionendofthemotorwithtwoshaftextensions.

2.2Frame

2.2.1Statorframeoflifting-intypeisofarectangularbox-shapedconstruction,insideofwhichthereareaxial

ribsforsupportingandsecuringthestator.Thestatorcoreisliftedintotheframefromthetopend,andissecured

inpositionwithanuniformairgapbythelongitudinalribsandstatordamprings.Theframeandthestatorare

tightenedtogetherbybolts.Innerflangeoftheendplatesoftheframe,closelymatchwiththeexternalflangeof

theendshieldstosecureanexcellentairgapuniformity

2.2.2Statorframeofpressingtypemotorisofarectangularbox-shapedconstruction,insideofwhichthereare

radialsupportplatesforsupportingandsecuringstator,thestatorcoreispressedintotheframefromoneendand

issecuredinpositionbystatorclampringsandtheflangeoftheframesupportingplatestosecureanexcellentair

gapuniformity.

2.3Statorcoils

ThestatorcoilsaredoublelayerlapwindingswithclassFinsulationbeingcorona-proofandcapableof

withstandingthevoltageofabove3kV.

2.4Rotorcoils

Rotorcoilsofawound-rotormotorarethedouble-layerwavewindingmadeofrectangularflatcopperbarswith

classFinsulation.

2.5Statorassembly

Thestatorisofaexternalpressstackingconstructionwithmagneticslotwedges,uponrequest,non-magneticslot

wedgesarealsoadopted.Asuitablecontourshapedinsulationmaterialisblockedbetweenendcoilswhichare

bracedtightlytogetherwithendringsandendwindingssupporters.Aftervacuumpressureimpregnatedina

solventlessvarnish,thecompletestatorassemblyresultsinaconsolidatedcorewhichenablestowithstand

vibrationsandtoincreasemoistresistance.

2.6Rotorassembly

2.6.1Squirrel-cagemotorsareprovidedwithcastaluminumrotorwhichisreliableforrunningandavailablefor

severestartingconditionsaswellasfullvoltagelinestarting.Uponrequestacopperbarsquirrelcagemaybe

adopted.

2.6.2Forthewoundrotormotortherotorcoilsarefittedinsemiclosedslotsoftherotorcore,thecoil

connectionsaresolderedinaccordancewiththegivenwiringdiagram,andthebaresectionswrappedwith

insulationtape,thenthecompleterotorisvarnish-impregnatedandstovencured.

2.6.3Rotorshaftweldwithradialribsandcuredbyheattreatmenthasabettermechanicalperformance.

2.7Bearingdevice

2.7.1Rollingbearingdevice

Inordertoincreasethecarryingcapacityofthebearingattheshaftextensionendanditsservicelife,the

rollingbearingdeviceisoftriplebearingconstruction,atdrive-endthemotorisequippedwithtwobearings,one

isaballbearingforwith-standingaxialloadonlyandacylindricalrollerbearingforwith-standingradialload

(betweentheouterraceoftheballbearingandtheinnercircleoftheendshieldnormallyaspaceisreserved

radially).Thenon-driveendhasarollerbearingonly.Therollingbearingdevicealsocanbeofdoublebearing

construction,atdriveendisarollerbearingandnon-driveendisaballbearing.

Forpreventionofbearingracesrotatingmovementoccurringduringthemotor’srunning,theouterrace

isclampedbyapairofflange-typeinnerandouterbearingcapswhicharetightlyfittedwiththeendshieldsor

bearingbush,andtheinnerraceisclampedbyalabyrinthring.

Labyrinthsealsareadoptedforbothdriveandnon-drivebearingdevice,whichcanpreventnotonlythe

greasefromthebearinghouseleakingintothemotorinteriortodamage

thecoilinsulation,butalsotheentryofdustandmoisturecondensationintothebearinghousewherecleannessis

alwayskept.

Thebearingisequippedwithlubricatingpipeandgreaseoutletpipesoastoregreasewithease.

Instructionnameplatefittedontheframeindicatethegreaseinletandoutletandregreasingintervals.Regreasing

anddraininggreasecanbedoneduringthemotor’srunning.

BearingshavetypeofenclosureIP54.UponrequesttheenclosureofbearingscanbetypeofIP55forthe

outdoormotor.

Typeofthebearingsandbrandoflubricantpleaserefertotheoutlinedrawingattachedtothemotor.

2.7.2Slidingbearingdevice

Slidingbearingisaseparatedevicewhichisfixedontheendplateofmotorframe.

Onbothsidesofslidingbearingthereareoilinlet,oil-levelobserveroroiloutlet,bearingthermodetector

elementmountedhole,oildrainageholeandspaceforheater.Theoilinletandtheoiloutletarereadyforthe

cyclinglubricatingoilwithpressure.

Theslidingbearingisthetypeofendshieldautomaticselfaligningball,thesurfaceofcontactbetween

bushandbearingsocketaswellasbearingcoveristhetypeofsphericalface.

Theslidingbearingadopttheconstructiontypeofsuspensionlabyrinthsealsandairseals,whichenable

topreventtheoilleakingfrombearing.

Onthebearingsocketoftheslidingbearingatnon-shaftextensionendthereisalayerofinsulation

materialtoavoidcurrentthroughmotorshaftoccurring.

Therearethreetypesoflubricatingmodesinslidingbearing:

Self-lubricatingmode,ofwhichthebearingisoiledbyaoilring;lubricatingmodeofcyclingoilwithpressure,

ofwhichthebearingisoiledbyaoilsupplysystemconsistingofouteroilpump,oilpipelineandbearing;

combinationlubricatingmodewhichisacombinationoftheabove-mentionedtwomodes,i.e.Combinationof

pressureandoilring.Brandoflubricantpleaserefertotheoutlinedrawing.

BasicenclosureofslidingbearingisthedegreeofprotectionIP44.Onrequest,theenclosurecouldbe

degreeofprotectionIP54andIP55whicharethatanexternalcoverofwaterresistanceanddustproofisadded

basedontheenclosureofIP44.

Thebearingbushadopttheconstructionofsingleoilwedgecylinder,hastwoconstructiontypeofwith

thrustfaceandwithoutthrustface,thebushwiththrustfaceisforlimitingtheaxialthrustresultingfromthe

motoritself,anddoesn’tbeartheouterthrustload.Whenthemotorwithslidingbearinghastobeartheouter

axialthrust,whichshouldbedemonstratedatordering.

Thefrontandtherearbearingbushofsametypecouldbeinterchanged(differentbearingscouldn'tbe

interchanged).

2.8Terminalbox

2.8.1Terminalboxconsistsofaterminalboxbase,acoverandsomeinsulationbushes.

2.8.2Fortheterminalboxratedatvoltageof3kVandabove,itsinsulationbushismadeofchemicallypressing

resinelementorelectricporcelain.Fortheterminalboxusedforlowvoltagerating,terminalstudisadopted.

2.8.3Theterminalboxiswhollysealed,andthespacebetweentheterminalboxandthemotorisalsosealed,

whichcanpreventwateranddustfromingressingintheterminalboxandmotorinterior.Enclosuredegreeisof

IP54,andalsocanbeofIP55onrequest.

2.8.4Therearethreeinsulationbushesinsidetheterminalboxforasingleratedvoltage;oftheratedvoltagein

twotype,theresixornineinsulationbushesinsidetheterminalbox,amongwhichthelowerthreeinsulation

pushesareforinletcables.

2.8.5Therearegroundingdeviceandwiringmarkplateinsidetheterminalbox.

2.8.6Uponrequest,thereistightingarrestorormutualinductormountedintheterminalbox.

2.9Sliprings

Forthewoundtypemotortheslipringisnormallymountedoutsidetheframeatthenon-driveendwhose

enclosuredegreeisIP23,anditalsocanbeIP44orIP54onrequest,italsocanbemountedinsidetheframe.

2.9.1Nobrush-liftingdeviceisused,afterastartingiscompletedbrushesstillcontactwiththeslipring.Brush-

liftingdevicemaybeusedforratedvoltageof380Vandbelow.

2.9.2Numberofbrushesandcrosssectionofleadingcablesrequireddifferfromeachotherdependingonthe

ratedcurrent.

2.9.3Somemotorsareequippedwiththecarboncollectingdevice,mountedundertheslipring,beingthetypeof

drawer,whenitiscleanedoffperiodically,screwoffthesecuringstuds,takeoutthedeviceandcleanoffitby

waterorcompressingair,putitbackinitsposition.

2.9.4ThebrandofbrushisJ204orJ206,uponrequest,otherbrandisalsoappropriate.

2.10Air-aircooler

Itisso-calledair-aircoolerthatheatofcirculatingairinthemotorinteriorisexchangedbyitscoolingpipesfrom

whichheatiscarriedawaybycoolingairforcedfromanexternalfanlocatedatthenon-driveend.Itissuitable

fortotallyenclosedtypemotor.

2.10.1Thecoolingpipesfittedontwoendplatesbywayofopeningexpandedatbothends,havinggoodsealing

function.

2.10.2