YCTserieselectromagneticadjustablespeedmotorsofthemainderivedproductsofyseries(IP44)three-phaseasynchronousmotorconsistsofthree-phaseasynchronousmotor,electromagneticslipclutch.Thegeneratorandcontrolgearcanperformconstant-torquesteplessadjustablespeedwithintheratedlimits.Itiswidelyusedinthemechanicalequipmentsoftextileindustry,metallurgy,paper-making,plastics,etc.whichneedadjustablespeed,anditisespeciallyfitforthedecreasingtorqueloadofchangetorquecentrifugalpumpandfan,etc,ithasdistinguishedenergysavingeffectinplaceofopeningorclosingvalve1.withspeednegativefeedbackautomaticallyregulated,itsspeedrateofchange;thefirststep 1.8%andthesecondstep 2.5%.2.withoutrunawayareaofspeedwithtechogeneratorgaugingspeed.3.Stableadjustableoperatingspeedandwiderangeofadjustablespeed,reaching10:14.goodstartingperformance,smoothstartandlargemoment.5.Simplereliablestructureandconvenientmaintenance6.smallpowerofcontrollingspeedandeasytocontrolinmanyways