三相鼠笼式异步电动机等值电路参数的试验方法

《三相鼠笼式异步电动机等值电路参数的试验方法》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、CONTENTSFOREWORD4INTRODUCTION61Scope72Normativereferences73Terms,definitionsandsymbols73.1Symbols73.2Subscripts93.3Windingconnection94Testrequirements94.1General94.2Frequencyandvoltage94.3Instrumentation104.3.1Measuringinstrumentsforelectricalquantities,speedandfrequency104.3.2Instrumenttra

2、nsformers104.3.3Temperaturemeasurement105Approximationsanduncertainties106Testprocedures116.1General116.2Statord.c.line-to-lineresistancemeasurement116.3Load-testatratedload116.4Loadcurvetest116.5No-loadtest126.6Reverserotationandlockedrotortests126.6.1General126.6.2Reverserotationtest126.6

3、.3Lockedrotortest137Determinationofmotorquantities137.1General137.2ResistanceofstatorwindingRs157.3TotalstatorinductanceLts=Lm+Ls157.4EquivalentresistanceofironlossesRfeG167.4.1Constantlosses167.4.2Frictionandwindagelosses177.4.3Ironlosses177.5TotalleakageinductanceLs177.5.1General177.5.2Di

4、stributionofleakageinductancesbetweenstatorandrotor187.5.3Determinationoftotalleakageinductancefromareverserotationorlockedrotortest(6.6)187.5.4Determinationoftotalleakageinductancefromaloadcurvetest(6.4)197.6MagnetizinginductanceLmandvoltageUm217.6.1Fromareverserotationorlockedrotortest(6.

5、6)217.6.2Fromaloadcurvetest(6.4)217.7StatorandrotorleakageinductancesLsandLr’227.7.1Fromareverserotationorlockedrotortest(6.6)227.7.2Fromaloadcurvetest(6.4)227.8Inductancesforcalculationsatconstantflux(ratedload)227.9ResistanceofrotorcageRr’referredtothestatorwindingandfrequency237.10Equiva

6、lentresistanceofironlossesRfe24Annex A(informative)Samplecalculation29INTERNATIONALELECTROTECHNICALCOMMISSION____________ROTATINGELECTRICALMACHINES–Part28:Testmethodsfordeterminingquantitiesofequivalentcircuitdiagramsforthree-phaselow-voltagecageinductionmotorsFOREWORD1)TheInternationalElec

7、trotechnicalCommission(IEC)isaworldwideorganizationforstandardizationcomprisingallnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromoteinternationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectro