Therearemanytypesofsingle-phasemotors,whichcanbedividedintotwocategoriesaccordingtodifferentstartingmethods.Oneisthecoveredpolemotor,whichcanbedividedintotwotypes:thesalientpolecoverpoleandthehiddenpolecoverpoleresistancephasesplittingtype;Theothertypeisthesplit-phasemotor,whichcanbedividedintocapacitivesplit-phaseandinductivesplit-phase.
Single-phaseasynchronousmotorusessingle-phaseACpowersupply,soitismoreconvenienttouse,soitiscommonlyusedinhouseholdappliancesandsmallpowermachinerywithlittlepower,thenlet'sunderstandsomecharacteristicsofthenextsingle-phaseasynchronousmotor.
Single-phaseasynchronousmotorreferstothesingle-phaseACpowersupply(AC220V)powersupplyoflow-powerasynchronousmotor,itspowerdesignisrelativelysmall,oftenmadeintosmallmotorequipment,asadrivemotor,itspoweronlyafewwattsorhundredsofwatts,generallynotmorethan2kW.HereisasimpleunderstandingwithSenliMotorXiaobian!
Wanttoachievesingle-phaseasynchronousmotoranyway,infact,anddoublecapacitorshavenothingtodo,capacitorswithlargercapacityarestartingcapacitors,whichareautomaticallyopenedbytheoff-coreswitchafterstarting,andcapacitorswithsmallercapacityarerunningcapacitors,whichareconnectedinseriesatoneendofthesecondarywinding,andalwaysmovetogetherwiththesecondarywinding.BelowandSenlimotorXiaobiantogetherwithasimpleunderstandingofthenext.
Becausethesingle-phaseasynchronousmotorisnotstartingtorquesoitcannotstartbyitself,ifyouwantittostart,weneedtotrytomakeitcanproducearotatingmagneticfield,accordingtothestartmethodcanbedividedintothreecategoriesofthismotor: