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[4]SMACruz,AJMarquesCardoso.RotorCageFaultDiagnosisinThree2phaseInductionMotorsbyExtendedPark’sVectorApproach[J].ElectricMachinesandPowerSystems,2000,28:289299.[5],,,.[J].,2002,17(4):8992.[6],,.[J]..2001,21(6):2932.[7],,,.[J].,2003,23(7):112116.[8],,.[J].,2005,25(24):122127.6200612IndustryandMineAutomationNo.6Dec.2006:1671-251X(2006)06-0011-03Y-,,(,410003):2Y-,Y-1:;Y-;:TM343.2:BTheY-Voltage2reducedStartCircuitwithTwoContactorsforThree2phaseAsynchronousMotorYUANZeng2min,GUOMin2li,YOUDe2yi(Dept.ofMechanicalandElectronicEngineeringofChangshaUniversity,Changsha410003,China)Abstract:AY-voltage2reducedstartcircuitwithtwocontactorsforthree2phaseasynchronousmotorwasputforwardandtested.Onecontactorissavedinthisnewcircuitcomparedwithgeneralcircuit.Thetestshowedthatthevoltage2reducedcircuitcouldbeusedinreformingofoldequipmentanddesigningofnewequipment.Keywords:three2phaseasynchronousmotor,Y-voltage2reducedstartcircuit,double2contactortype0,,,:2006-09-01:(1957-),,,,,,,,Y-3,[1,2]1,Y-,,11.1Y-Y-1,3,Y-1Y-,Y-,,Y-1Y-Y-KM1,:;KM1,KM13,()QS,KM1,2,Y-,,1.2Y-2Y-KM2,,,KM2,KM2,Y,,,,KM2,KM2,,2Y-Y,,Y-13kW[1]2Y-2.112,KM1Y,KM2,KM1KM2:Y,,Y,Y,Y,,,Y,KM2,KM2,,SB2,YKM1,21200612KT1,SB2,Y,,KT1,YKM1,Y,YKM1,KM2KT1,KM2,KM2,KT1,KM2,KM2,KT1KT1,,KM2KM2,KM23Y-,,JS20,,3Y-2.23KM1,,44Y-12,KM1Y,KM2,KM1KM2Y,,YKM1,YKM1,Y,KM2,KM2,334Y-,100:2Y-,30%2Y-:[1].[M].:,1982.[2].[M].5.:,1999.3120066:Y-