1.概述 DTSY型IC卡预付费三相四线有功电能表是采用大规模专用单片机电器和高可靠的电子元件设计，外围元件少，结构简单，可靠性高，功耗低等特点。2.功能及特点 产品软、硬件设计思想独特，无死机、丢失数据现象，系统具有高抗干扰、高过载、高可靠性、长寿命的性能。本表使用IC卡，读写速度快、方便可排，使用寿命可重复十万次以上，在电网大波动条件下，仍然可正常工作（至少在65%--135%额定电压下可正常工作），在缺相情况下，预付费功能正常动行。3.规格规格型号额定电压标定电流DDSY1.03X380/22050Hz直通式3X5(20)A3X15(60)A3X30(100)A接互感器式3X3(6)AProductIntroductionTheDTSYThree-phaseelectronicprepaidwatthourmeterisanewtypeofICcardpre-paidmeter,whichhassuchfunctionaspowermetering,loadcontroalandcustomerinformationmanagement.Itisanidealproductwhenreformingelectric-usesystem,achievingelectricalenergytocommercialize,settingchargeandadjustingloadstageintheelectricnetwork.Alltheindexescomplywiththetechnologicalspecificationsaimingtothethree-phaseelectronicspre-paidwatt-hourmeterinthestandardofGB/T17215-2002Class1and2StaticA.CActiveWatt-hourMeterandGB/T15460-2001.Thisserieselectronicwatt-hourmeterhastwowaysofwiring:Directwiringorwiringbycurrenttransformer. Usedtomeasureactiveenergy,cannormallyworkoverlongtimewithoutadjustment;PrepaidbyICcard;Indicativefunctionforphaselossorvoltageindication;Onemeteronecard,withgoodanti-counterfeitfeature;Lowenergyalarm;Overloadalarm,autopowershutoffduetocontinuousoverload,andrecordingoverload