ACinductionmotorsarethemostcommonmotors
usedinindustrialmotioncontrolsystems,aswellasin
mainpoweredhomeappliances.Simpleandrugged
design,low-cost,lowmaintenanceanddirectconnec-
tiontoanACpowersourcearethemainadvantagesof
ACinductionmotors.
VarioustypesofACinductionmotorsareavailablein
themarket.Differentmotorsaresuitablefordifferent
applications.AlthoughACinductionmotorsareeasier
todesignthanDCmotors,thespeedandthetorque
controlinvarioustypesofACinductionmotorsrequire
agreaterunderstandingofthedesignandthe
characteristicsofthesemotors.
ThisapplicationnotediscussesthebasicsofanAC
inductionmotor;thedifferenttypes,theircharacteris-
tics,theselectioncriteriafordifferentapplicationsand
basiccontroltechniques.AN887ACInductionMotorFundamentalscreatednaturallyinthestatorbecauseofthenatureofAuthor:RakeshParekhthesupply.DCmotorsdependeitheronmechanicalorMicrochipTechnologyInc.electroniccommutationtocreaterotatingmagneticfields.Asingle-phaseACinductionmotordependsonextraelectricalcomponentstoproducethisrotatingINTR
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