YGP Range of Roller.docx
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YGP Range of Roller.docx
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YGPRangeofRoller
YGPRangeofRoller-TableVariable-Frequency
Adjustable-SpeedThree-PhaseInductionMotors
Catalog
0EE.138.114
JiamusiElectricMachineCo.,Ltd
July23,2002
1General
1.1YGPrangeofroller-tablevariable-frequencyadjustable-speedthree-phaseinductionmotorsarenewgenerationofhigh-reliabilityroller-tablevariable-frequencymotors.Theyhaveadvantagesofsmallvolume,lightweight,goodperformance,reliableserviceandeasymaintenance,etc.Comprehensivetechnical-economicalindicesreachtheadvancedworldstandardofthesameproducts.
1.2Themotorsaresuitableforoperatingcontinuouslyandintermittentlyundersevereconditionssuchasfrequentlystartingandbraking,positiveandreverserotation,andplugbraking,etc.,andhavelargeradjustable-speedrangeandoverloadcapacity,andhighermechanicalstrength,sotheyarethedefinite-purposevariable-frequencymotorsfortherollertableforuseinmetallurgicalindustry,andcanalsobeusedforothersimilarmachineries.
1.3Ratedvoltageofthemotorsis380V.Theoptimumvalueofratedfrequencyisdeterminedaccordingtothespeedrangerequiredactually.Themotorscanbematchedwithdomesticandforeignvariousvariable-frequencyconvertersbecauseofwideadjustable-speedrange,smallvibrationandlownoise.Thevariable-frequencyrangeisfrom0to120Hz.Belowratedfrequency,speedisadjustedatconstanttorque,andaboveratedfrequency,speedisadjustedatconstantoutput.MotorsaresuitableforV/Fcontrol,slipangularfrequencycontrol,andvectorcontrol,etc.IfthevectorcontrolisappliedandtheparametersofequivalentelectriccircuitshowninFig.1arerequiredbytheuser,theparameterscanbefurnishedseparatelyandarenotgiveninthiscatalog.Accordingtodifferentselectionofthemotorandconverterselectedonactualneed,compensationofvoltagecanbecarriedoutinaccordancewiththecurvesQ1,Q2,Q3andQ4inFig.2tomeettherequirementsofoutputofconstanttorqueatlowfrequency.
1.4TheinsulationclassisForH.DegreeofprotectionisIP54.MountingarrangementisIMB3,IMB5forframesizes112to250,orIMB35forframesizes112to250.MethodofcoolingisIC410.Forframesize200andmore,themotorsareprovidedwithoil-fillingdeviceswithoutshutdown,sothemaintenanceintervalcanbeextendedandtheoperationefficiencycanbeimproved.
1.5Themotorsaresuitableforvariousdutytypes.ThedatainTable1and2arethoseatdutytypeS5-60%and300starts/hour.WhenthedutyisnothigherthanS5-60%,andthestartsarenotmorethan300starts/hour,thedatacanbeselectedfromTable1and2.
1.6Meaningoftype
YGP132M1–4
No.ofpoles
Symbolofcorelength
Symbolofframelength
Shaftheight
Variable-frequencyadjustable-speed
Rollertable
Inductionmotor
1.7Onuser’srequest,themotorcanbemanufacturedwithanyratedvoltageandfrequency.
DegreeofprotectioncanbeIP55,IP56orIP65.
Speedmeasuringdevices,suchasencoder,tachogenerator,andoverspeedswitch,etc.,canbefittedatthenon-shaftextensionendofthemotor.
Themotorcanbeprovidedwithstatormeasuringtemperatureelement,suchasPTCthermistor.
2Maintechnicalparameters
ThemostcommonlyusedtechnicaldatanecessaryforreasonableselectionofYGPmotorsaregiveninTable1and2.ThedatainTable1aresuitablefor4-,6-and8-poleroller-tablemotorsofframes112to400withratedvoltageof380V,ratedfrequencyof50Hz,andthedatainTable2for6-,8-,10,and12-polemotorsofframesizes200to400withratedvoltageof380V,ratedfrequencyof30Hz.Theelectricaldataatanyothervoltagesandfrequenciesandcorrespondingproductscanbesuppliedonuser’srequest.
3Overallandmountingdimensions
ThemainoverallandmountingdimensionsareshowninFig.3,4,and5.
4InTable4,5and6,theexamplesoftheroller-tablevariable-frequencymotorsusedatvariouslargeiron&steelcomplexaregiven,andthemotorscanbeselectedbytheuserdependingonitsdemand.
4.1ForYGPrangeofroller-tablevariable-frequencymotorsappliedto2250mmhot-rolledstripsteelmillofWuhanIron&Steel(Group)Company,thetypes,specificationsandtechnicalparametersofthemaregivenintable4,andoverallandmountingdimensionsareshowninFig.6,7and8.
4.2Typesandspecificationsofthevariable-frequencymotorsusedinreformationof1700mmcontinuoushot-rolledmillofBenxiIron&SteelCompanyaregiveninTable5.
4.3Fortheroller-tablevariable-frequencyadjustable-speedmotorsadoptedbytheSecondHeavyMachineryGroupCompanyofChinaforreformationof3500mmrollmillofCapitalIron&SteelCompany,thetypesandspecificationsofthemaregiveninTable6andtheoverallandmountingdimensionsareshowninFig.9.
5Orderinginformation
5.1Pleasespecifythetype,output,ratedvoltage,ratedfrequency,no.ofpoles,variablefrequencyrange,mountingarrangementanddutytype,etc.whenordering.
5.2ForIMB3motors,theterminalboxislocatedontheleftside(framesizes112to180)asviewedfromtheshaftextensionend,andtheterminalboxissituatedonthetopofthemotor(framesizes200to400)anditscableentryistowardtheback.ForIMB35orIMB5motor,theterminalboxislocatedontheleftsideasviewedfromtheshaftextensionend.
5.3Withdevelopmentoftechnologyandamendmentofrelevantnationalandinternationalstandards,thedatainthiscatalogaresubjecttochangewithoutnotice.
Table4
Serial
no.
Name
Type
No.ofpoles
Rated
output
kW
Ratedtorque
N·m
Break-
down
torque
N·m
Ratedspeed
r/min
Appli-
cable
speed
r/min
Dutytype
Ratedcurrent
A
Powerfactor
cosφ
Eff.
%
Appli-
cablefrequency
Hz
Mountingarrangement
IM
Degreeofprotection
IP
Methodofcooling
IC
Moment
of
inertia
J·m
kg·㎡
Max.current
A
Max.
power
factor
cosφ
Max.eff.
%
Weight
kg
Quantity
Remarks
1
Hotrunouttablemotor
TerminalboxlocatedatNDE
2
PinchrollunitNo.1switchroller-table
motor
TerminalboxlocatedNDE
3
PinchrollunitNo.1
over-Bridgeroller-
tablemotor
TerminalboxlocatedatNDE
4
PinchrollunitNo.1compressionroller-
tablemotor
TerminalboxlocatedatNDE
5
PinchrollunitNo.2
over-Bridgeroller-
tablemotor
TerminalboxlocatedatNDE
6
PinchrollunitNo.2
compressionroller-
tablemotor
TerminalboxlocatedatNDE
7
Over-Bridgeroller-
tablemotorbetweenpinchrollNo.2andreelingmachineNo.1
8
Single-transferroller-
tablevariable-
frequencymotor
9
Outdoorsingle-
transferroller-tablevariable-frequencymotor
10
Descalerapproachroller-tablemotor
Table4contd.
Serial
no.
Name
Type
No.ofpoles
Rated
output
kW
Ratedtorque
N·m
Break-
down
torque
N·m
Ratedspeed
r/min
Appli-
cable
speed
r/min
Dutytype
Ratedcurrent
A
Powerfactor
cosφ
Eff.
%
Appli-
cable
frequenccy
Hz
Mountingarrangement
IM
Degreeofprotection
IP
Methodofcooling
IC
Moment
of
inertia
J·m
kg·㎡
Max.current
A
Max.
power
factor
cosφ
Max.eff.
%
Weight
kg
Quantity
Remarks
11
Descalerroller-tablemotor
12
Single-transferchargingroller-tablemotor
13
Intermediateroller-
Tablemotorinfrontofcropshear
14
Intermediateroller-
Tablemotorbehindcropshear
15
Descalerintermediateroller-tablemotor
16
Descalerroller-tablemotoratexitbottom
17
Collectingandtransferrotaryroller-tablemotor
18
Tapping-machinevariable-frequencymotor
19
Chargingroller-tablevariable-frequencymotor
20
Delayroller-tablemotor
21
Delayroller-tablemotor
22
Pinchrollvariable-frequencymotoratentranceofdescaler
Withoutoverall
drawings
Table4contd.
Serial
no.
Name
Type
No.
Of
poles
Rated
output
kW
Ratedtorque
N·m
Break-
down
torque
N·m
Ratedspeed
r/min
Appli-
cable
speed
r/min
Duty
type
Ratedcurrent
A
Power
factor
cosφ
Eff.
%
Appli-
cable
frequency
Hz
Mountingarrangement
IM
Degreeofprotection
IP
Methodofcooling
IC
Moment
of
inertia
J·m
kg·㎡
Max.current
A
Max.power
factor
cosφ
Max.eff.
%
Weight
kg
Quantity
Remarks
23
WorkrollsF1toF7variable-frequencymotorfortransportingcar
Without
overall
drawings
24
Roller-tablemotorinfrontofconstantwidthpress
25
Roller-tablemotorbehindconstantwidthpress
26
Roller-tablemotorinfrontofandbehindfutureR1
27
Connectingroller-
tablemotorbetweenfutureR1andE2/R2
28
Roller-tablemotorinfrontofandbehindentranceofE2/R2
29
Roller-tableinfrontofandbehindexitofE2/R2
30
E2feedrollmotor
31
R2feedrollmotor
32
Roll-changingsystemmotor
33
Wasteremovingsystemvariable-
frequencymotor
34
Steel-feed-machinevariable-frequencymotor
Note:
1ForNo.22and23,theoveralldrawingsarenotprovided.Iftheyareneeded,theycanbeprovidedseparately.
2Somemotorsareprovidedwithencoders,buttheoveralldrawingsarenotsupplied.Iftheyareneeded,theycanbeprovidedseparately.
3TheabovemotorsareallprovidedwithPTCthermistor.
Table5
Serial
No.
Application
Type
No.ofpoles
Output
kW
Ratedvoltage
V
Ratedfrequency
Hz
Ratedcurrent
A
Ratedtorque
N.m
Breakdowntorque
N.m
Speed
r/min
Powerfactor
cosφ
Eff
η
Duty
type
MountingarrangementIM
DegreeofprotectionIP
Methodofcooling
1Finishrolling
(Pinchrollatentranceof
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