单相宽量程充电桩电能计量装置的设计及检验 design and inspection of single phase wide measurement range electricity metering device for ev charging point.pdfVIP
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单相宽量程充电桩电能计量装置的设计及检验 design and inspection of single phase wide measurement range electricity metering device for ev charging point
总第49卷第556期 电测与仪表 V01.49No.556 2012年第4期 ElectricalMeasurement&Instrumentation Apr.2012 单相宽量程充电桩电能计量装置的设计及检验 吴鑫源1,蔡方辉2,姚莉2 有功电能的计量误差优于±o.2%,具备抗直流分量和偶次谐波能力,满足标准对3~21次谐波影响量要求。经检 验和现场使用表明,本单相宽量程电能表可以准确计量交流充电桩整个充电过程中的电能。 关键词:宽量程;电能计量;谐波 中图分类号:TM933 文献标识码:B and of PhaseWideMeasurement Design Range InspectionSingle DeviceforEV Point Metering Charging 1 2 2 WU Li Xin—yuan,CAIFang—hui,YAO ofShenzhenPower 51 Bureau,Shenzhen (I.MeteringDepartment Supply 8000,Guangdong,China. 2.Shenzhen Meters HaoningdaCo.,Dd,Shenzhen518053,Guangdong,China) Abstract:AC meterwithmeasurementof hasbeen wide 1(50)A chargingpointenergy range designedbyadopting forACactive intheCllrrent measurement IC.Thismeterhasbetter error rangemetering than±O.2%metering energy of20mA-50A.Ithas toresistDC andeven itmeetsthe3~21 range th.ecapability componentharmonic,and influence set andfield showsthatthis wide quantityrequirementbystandard.Throughinspection use,it singlephase measurement metercan measuretheelectric thewhole ofAC rangeenergy accurately energyduring chargingprocess chargingpoint. measurement words:wide Key range,e
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