AS/NZS1359.102.3:2000Australian/NewZealandStandard™Rotatingelectricalmachines—GeneralrequirementsPart102.3:Methodsfordetermininglossesandefficiency—Three-phasecageinductionmotorsAS/NZS1359.102.3AS/NZS1359.102.3:2000ThisJointAustralian/NewZealandStandardwaspreparedbyJointTechnicalCommitteeEL/46,RotatingElectricalMachinery—Efficiency.ItwasapprovedonbehalfoftheCouncilofStandardsAustraliaon15August2000andonbehalfoftheCouncilofStandardsNewZealandon2August2000.Itwaspublishedon13November2000.ThefollowinginterestsarerepresentedonCommitteeEL/46:AustralianChamberofCommerceandIndustryAustralianElectricalandElectronicManufacturersAssociationAustralianGreenhouseOfficeBureauofSteelManufacturersofAustraliaElectricitySupplyAssociationofAustraliaEnergyEfficiencyandConservationAuthorityofNewZealandNationalApplianceandEquipmentEnergyEfficiencyCommittee(Australia)KeepingStandardsup-to-dateStandardsarelivingdocumentswhichreflectprogressinscience,technologyandsystems.Tomaintaintheircurrency,allStandardsareperiodicallyreviewed,andneweditionsarepublished.Betweeneditions,amendmentsmaybeissued.Standardsmayalsobewithdrawn.ItisimportantthatreadersassurethemselvestheyareusingacurrentStandard,whichshouldincludeanyamendmentswhichmayhavebeenpublishedsincetheStandardwaspurchased.DetailedinformationaboutjointAustralian/NewZealandStandardscanbefoundbyvisitingtheStandardsAustraliawebsiteat:2000Australian/NewZealandStandard™Rotatingelectricalmachines—GeneralrequirementsPart102.3:Methodsfordetermininglossesandefficiency—Three-phasecageinductionmotorsFirstpublishedasAS/NZS1359.102.3:2000.COPYRIGHT©StandardsAustralia/StandardsNewZealandAllrightsarereserved.Nopartofthisworkmaybereproducedorcopiedinanyformorbyanymeans,electronicormechanical,includingphotocopying,withoutthewrittenpermissionofthepublisher.JointlypublishedbyStandardsAustraliaInternationalLtd,GPOBox5420,Sydney,NSW2001andStandardsNewZealand,PrivateBag2439,Wellington6020ISBN0733735819AS/NZS1359.102.3:20002PREFACEThisStandardwaspreparedbytheJointStandardsAustralia/StandardsNewZealandCommitteeEL/46,RotatingElectricalMachinery—Efficiency.TheobjectiveofthisStandardistoprovideindustryingeneral,andsuppliersofelectricmotorsandtestinginstitutionsinparticularwithaninternationallyalignedmethodfordetermininglossesandefficiencyofthree-phasecageinductionelectricmotors.ThisStandardprovidesthebasisforamoreaccuratedefinitionandapplicationofefficiency.ThisStandardispartoftheAS1359series,Rotatingelectricalmachines—Generalrequirements.TheAS1359seriesispublishedinPartsasdetailedinAS1359.0,IntroductionandlistofParts.ThisStandardcomplementsthefollowingPartsonthisparticularsubject:AS1359.102.1:Methodsfordetermininglossesandefficiency—GeneralAS1359.102.2:Methodsfordetermininglossesandefficiency—Calorimetricmethod.AtthetimeofpublicationofthisStandard,theeditionsofdocumentsreferredtowerevalid.SinceallStandardsaresubjecttorevision,concernedpartiesareencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditions.MembersofIECandISOmaintainregistersofcurrentlyvalidInternationalStandards.ThisStandardisbeingpublishedawaitingthefinalpublicationoftheIECStandardcurrentlyindraftstage.Whenitbecomesavailable,thisStandardwillthenbereviewed.Theterm‘informative’hasbeenusedinthisStandardtodefinetheapplicationoftheappendicestowhichitapplies.An‘informative’appendixisonlyforinformationandguidance.AS/NZS1359.102.3:20003CONTENTSPage1SCOPE................................................................................................................................52REFERENCEDDOCUMENTS..........................................................................................53DEFINITIONS....................................................................................................................54TERMSANDSYMBOLS...................................................................................................65TESTREQUIREMENTS....................................................................................................76TESTPROCEDURE...........................................................................................................87DETERMINATIONOFEFFICIENCY.................................................................