DDS ELECTRONIC SINCLE PHASE WATT-HOUR METER

APPLlCATIONDDS mete r applies to the wo rking conditions of powe r elect ricity mete ring of 50Hz o r 60Hz f requencies the-1 0 C +500C envi ron mentaI tempe ratu res and the humidily not mo re than 85% This elect ric mete r adopts mic ro—elect ronic technclogY to me re r the powe r It gets the voItage sampling signals f rom the voltage divide r and gets the ou r rent signals f rOm the cu r rent divide r then gets the ou rrent ,voltage signals f rOm the multiplie r and th rough frequency conve rsion P roduce a counling PuIse in which the f recluency is in di rect ration with the voltage ou rrent Then the COUnte r is d riven by f requency dividing stepping moto r lO meter the powe r The elect ric me re r aPPIies fuII sc reen and fuII seaIing st ructu re It has the featu res of satisfacto ry elect romagnetic resistance function low self—consumption and powe r—conse rvative high P recision eIect ricity steaIing—resistanoe high ove rload and Iong se rvioe time ect Its capabiIity index a re totalIY confO rmed to National Standa rd GB/T1721 5—98 idt Inte rnation Standa rd lEC 1 036 SPEClFCALTlONS and MoDELS220V1.5(6A),2.5(10),5(20),10(40),15(60),20(80)A240V 3005(30)A,10(60)A