DDSY870型 電子式單相預(yù)付費(fèi)系列電能表 TypeDDSY870Singlephaseelectronicrepaymentkilowatt-hourmeter概述本系列產(chǎn)品適合于實(shí)行先付電費(fèi)后用電制度的場(chǎng)合進(jìn)行單相交流有功電能的計(jì)量，可實(shí)現(xiàn)電量預(yù)購(gòu)、最大負(fù)荷限制等功能，解決了供電部門(mén)收費(fèi)的問(wèn)題。產(chǎn)品性能符合GB/T17215-2002、GB/T18460.3-2001等標(biāo)準(zhǔn)，顯示方式可選（LED或LCD），具有壽命長(zhǎng)、準(zhǔn)確度高、過(guò)載性能好，功耗低和體積小等優(yōu)點(diǎn)。IntroductionTheseriesofproductsareapplicabletotheplacewherehaverulesofpayinginadvanceandthenconsumingtomeasuresinglephaseACactiveelectricalenergy,italsohasmultiplefunctions,suchaspurchasinginadvance,maximalloadlimiting,user sinformationmanagement.EachofperformationaccordswithGB/T17215-2002、GB/T18460.3-2001standard,displaymodecanbeselected(LEDorLCD),ithasmanyadvantages,suchaslongser vicelife、highaccuracy、goodoverload、lowconsumeandsmallvolume. 規(guī)格型號(hào)型號(hào)規(guī)格參比電壓（V）額定頻率（Hz）標(biāo)定電流（A）儀表常數(shù)（imp/kw.h）DDSY87022050/601.5(6) 2.5(10)5(20)10(40)15(60)20(80)見(jiàn)銘牌標(biāo)識(shí) 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.技術(shù)參數(shù)3.1電氣要求3.1.1精確度等級(jí)：1.0級(jí)，2.0級(jí)3.1.2正常工作電壓：0.9Un~1.1Un參比電壓3.1.3極限工作電壓：0.7Un~1.3Un參比電壓3.1.4絕緣電壓： 2000VAC3.1.5功率消耗： 2W3.1.6視在功率： 10VA3.1.7起動(dòng)：電能表在參比電壓、參比頻率及功率因數(shù)為1的條件下，當(dāng)負(fù)載電不充為0.4%lb（1級(jí)表）、0.5%lb（2表）時(shí)電能表應(yīng)該連續(xù)計(jì)量電能。3.1.8潛動(dòng)：當(dāng)電壓回路加115%參比電壓，電流回路無(wú)電流時(shí)，電能表輸出的脈沖不多于1WH。3.1.9設(shè)計(jì)壽命： 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環(huán)境要求3.2.1正常工作溫度：－25℃-+60℃(三相)3.2.2極限工作溫度：－30℃-+70℃(三相)3.2.3儲(chǔ)運(yùn)和運(yùn)輸溫度：－45℃ +70℃3.2.4相對(duì)濕度：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雙向計(jì)度功能，能夠精確測(cè)量正、反兩個(gè)方向的功率，且以一個(gè)方向累計(jì)電量，具有防竊電功能；4.2采用光電隔離技術(shù)輸出電能脈沖信號(hào)，發(fā)光二極管指示用電；4.3先購(gòu)電后用電，預(yù)購(gòu)電量用完則斷電；4.4顯示屏輪流顯示使用電量和剩余電量；4.5辨?zhèn)喂δ埽寒?dāng)使用非指定介質(zhì)時(shí)，電能表不會(huì)接受指令，拒絕操作；4.6具有記憶功能，數(shù)據(jù)在斷電后不丟失，上電即可恢復(fù)；4.7具有警報(bào)功能：當(dāng)預(yù)購(gòu)電量小于設(shè)定電量時(shí)報(bào)警提醒用戶(hù)即時(shí)購(gòu)電；可選功能：一次應(yīng)急賒電功能、電價(jià)改寫(xiě)功能、銷(xiāo)過(guò)戶(hù)功能、監(jiān)控用電負(fù)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、安裝尺寸（單位：MM）5.1產(chǎn)品外形尺寸：229.5mm*145mm*73.5mm.可也按客戶(hù)提供的外殼進(jìn)行模塊設(shè)計(jì)；5.2表計(jì)功能可根據(jù)客戶(hù)需求進(jìn)行技術(shù)設(shè)計(jì)和開(kāi)發(fā)。5.Outline,mountingdimensions（MM）5.1Outlinedimensions:229.5mm*145mm*73.5mm,theboxcanalsobedesignedbymodule5.2Measurementfunctioncanbedesignedbycustomers demandtodevelop