DD28系列單相電能表DD28seriessinglephasewatt-hoursmeter用途Application: DD28型單相電度表系感應(yīng)單相交流有功電度表，適用于頻率為50Hz，單相交流電網(wǎng)中有功電能的計(jì)量。具有體積小、結(jié)構(gòu)設(shè)計(jì)緊湊、低功耗等特點(diǎn)，其技術(shù)指標(biāo)完全符合GB/T15283-1994國(guó)家標(biāo)準(zhǔn)及IEC521國(guó)際標(biāo)準(zhǔn)。 DD28single-phasewatt-hourmeterisakindofinductionmeter.whichisapplicabletomeasuretheratedfrequency50Hzandpowerlossinelectrifiedwirenetting.AlltechnicaltargetsarecompletelyconformedtoNationalstandardGB/T15283-1994andlntermationalstandardIEC521.結(jié)構(gòu)特點(diǎn)Structurefeature: 該儀表采用分離式鐵芯結(jié)構(gòu)，軸承具有單寶石、雙寶石、磁推式、磁懸式四種結(jié)構(gòu)，外殼采用鋁、塑料和玻璃三種，基架由優(yōu)質(zhì)鋁合金壓鑄而成，具有良好的機(jī)械強(qiáng)度。Themeterhasseparableelectromagnetandthebearinghasfourkinds;single-jewel,magneticthrustandmagneticfloating.Thecasehasthreekinds;aluminum,plasticandglass.Thedie-castingframeisalloyaluminumwithexcellentmechanicalstrength.主要技術(shù)參數(shù)maintechnicaldata:型號(hào)Type:DD282 DD283 精度（級(jí)）Accurocy(class):2額定電壓Ratedvoltage(v):220-240額定電流Ratedcurrent(A):DD282:2(4),2.5(5),3(6),5(10),10(20),20(40),30(60),40(80)DD283:2(6),3(9),5(15),10(30),15(45),20(60),30(90)過(guò)載能力Overl0adcapaciaty:200％Ib 300％Ib 絕緣性能Insulationcurrent:工頻交流電壓2kV歷時(shí)1分鐘，沖擊電壓強(qiáng)6kVACvoltage2kVfor1minuteimpulsevoltage6kV外型：DD28透明塑殼；DD28黑色塑殼；DD28玻璃殼；DD28鋁殼