电子式三相有功电能表DDSY870型 电子式单相预付费系列电能表 TypeDDSY870Singlephaseelectronicrepaymentkilowatt-hourmeter概述本系列产品适合于实行先付电费后用电制度的场合进行单相交流有功电能的计量，可实现电量预购、最大负荷限制等功能，解决了供电部门收费的问题。产品性能符合GB/T17215-2002、GB/T18460.3-2001等标准，显示方式可选（LED或LCD），具有寿命长、准确度高、过载性能好，功耗低和体积小等优点。IntroductionTheseriesofproductsareapplicabletotheplacewherehaverulesofpayinginadvanceandthenconsumingtomeasuresinglephaseACactiveelectricalenergy,italsohasmultiplefunctions,suchaspurchasinginadvance,maximalloadlimiting,user sinformationmanagement.EachofperformationaccordswithGB/T17215-2002、GB/T18460.3-2001standard,displaymodecanbeselected(LEDorLCD),ithasmanyadvantages,suchaslongser vicelife、highaccuracy、goodoverload、lowconsumeandsmallvolume. 规格型号型号规格参比电压（V）额定频率（Hz）标定电流（A）仪表常数（imp/kw.h）DDSY87022050/601.5(6) 2.5(10)5(20)10(40)15(60)20(80)见铭牌标识 2.SpecificationsandtypesSpecificationsandtypesReferencevoltage（V）Ratedfrequency（Hz）Ratedcurrent（A）Meterconstant（imp/kw.h）DDSY87022050/601.5(6) 2.5(10)5(20)10(40)15(60)20(80)Asshowninnameplate 3.技术参数3.1电气要求3.1.1精确度等级：1.0级，2.0级3.1.2正常工作电压：0.9Un~1.1Un参比电压3.1.3极限工作电压：0.7Un~1.3Un参比电压3.1.4绝缘电压： 2000VAC3.1.5功率消耗： 2W3.1.6视在功率： 10VA3.1.7起动：电能表在参比电压、参比频率及功率因数为1的条件下，当负载电不充为0.4%lb（1级表）、0.5%lb（2表）时电能表应该连续计量电能。3.1.8潜动：当电压回路加115%参比电压，电流回路无电流时，电能表输出的脉冲不多于1WH。3.1.9设计寿命： 10年3.Technicalparameter3.1Electricalrequired.3.1.1Accuracyrating：class1.0，class2.03.1.2Normalworkingvoltage：0.9Un~1.1Unreferencevoltage3.1.3Limitingworkingvoltage：0.7Un~1.3Unreferencevoltage3.1.4Isolationvoltage: 2000VAC3.1.5Powerconsumption: 2W3.1.6Apparentpower： 10VA3.1.7Start:Undertheconditionthatreferencevoltage,ratedfrequencyandpowerfactoris1,themeterwillrecordenergycontinuously.3.1.8Creeping:whenputon115%ratedvoltageinvoltagecircuit,andthereisnocurrentincurrentcircuit,thepulseoutputslessthan1wh.3.1.9Designedlife: 10years 3.2环境要求3.2.1正常工作温度：－25℃-+60℃(三相)3.2.2极限工作温度：－30℃-+70℃(三相)3.2.3储运和运输温度：－45℃ +70℃3.2.4相对湿度：年平均小于80%3.2Environmentrequirements3.2.1Normalworkingtemperature：－25℃-+60℃(threephase)3.2.2Limitingworkingvoltage：－40℃ +70℃3.2.3TransportationandStoragetemperature：－45℃ +70℃3.2.4Relativehumidity(RH)：annualmeanshouldbelessthan80% 4、基本功能4.1双向计度功能，能够精确测量正、反两个方向的功率，且以一个方向累计电量，具有防窃电功能；4.2采用光电隔离技术输出电能脉冲信号，发光二极管指示用电；4.3先购电后用电，预购电量用完则断电；4.4显示屏轮流显示使用电量和剩余电量；4.5辨伪功能：当使用非指定介质时，电能表不会接受指令，拒绝操作；4.6具有记忆功能，数据在断电后不丢失，上电即可恢复；4.7具有警报功能：当预购电量小于设定电量时报警提醒用户即时购电；可选功能：一次应急赊电功能、电价改写功能、销过户功能、监控用电负荷功能。4.Mainfunction4.1Thismeterhavefunctionoftwodirectionmeasurement,itcanaccuratelymeasurethepowerof forwarddirectionandreversedirection,besides,itaccumulatequantityofelectricitynonedirection,andanti-theft.4.2Adoptphotoelectricisolatedtechnology,whichoutputpulsesignal,powersupplywillbecaninstructedbylightemittingdiode.4.3Payinginadvanceandthenconsuming,whenthepurchasingelectricityhasbeenusedup,cutelectricityoff.4.4Candisplayusedelectricityandremainingpoweralternately.4.5Resolvingability:Whenusingunspecifiedmedium,themeterwillnotacceptorder,andrefusetomakeitsoperation.4.6Memoryfunction:whenpowerfailure,thedatawillnotbelost,itcanberecoveredwhenthereiselectricity.4.7Alarmfunction:whenelectricitypurchasedinadvanceislessthanpresetelectricity,itwillalarmusertopurchaseelectricityimmediatelyOptionalfunctions:supplyingelectricitytomeetanemergency(onetime),correctingelectricitypricesfunction,logingoutassignedfunction,monitoringelectricityloadfunction.5外形、安装尺寸（单位：MM）5.1产品外形尺寸：229.5mm*145mm*73.5mm.可也按客户提供的外壳进行模块设计；5.2表计功能可根据客户需求进行技术设计和开发。5.Outline,mountingdimensions（MM）5.1Outlinedimensions:229.5mm*145mm*73.5mm,theboxcanalsobedesignedbymodule5.2Measurementfunctioncanbedesignedbycustomers demandtodevelop