Digitalmultimeter Strom

1,typicalapplications MeasureallthePowerParameters Measureandcontrolmaximumdemand,powerfactorect. Measureenergy Replacethree-phasemeasuremeter,three-phasepowertransmitter transformers,powergenerationdevicesgroup,capacitorsgroup,electromotorsdistributeddetection MediumvoltageandLowvotagesystem SCADA,EMS,DCSmanufacturer Commercialandindustrialapplication 2,Functions 1)Parametersmeasurement PhaseVoltage Ua,Ub,Uc(4wire,3systems) Linevoltage Uab,Ucb(3wire,2systems) Current Ia,Ib,Ic Activepower Pa,Pb,Pc,Psum(everyphaseactivepowerandtotalactivepower) Reactivepower Qa,Qb,Qc,Qsum(everyphasereactivepowerandtotalreactivepower) Apparentpower Sa,Sb,Sc,Ssum(everyphaseapparentpowerandtotalapparentpower) Powerfactor Pfa,Pfb,Pfc,Pf(everyphasepowerfactorandaveragepowerfactor) Frequency F 2)Energymeasurement Activeenergy +WH,-WH(import-andexportactiveenergy) reactiveenergy +varH,-varH(import-andexportreactiveenergy) 3)Pulseoutput(selectable)(simulativeoutputorpulseoutput) 2-linepulseoutputisolatedbyopticaldevice Thepull-upresistanceofopticaldeviceoutput R=Vcc/5mA,Vcc=5V/12V/24V 4)simulativeoutput(selectable)(simulativeoutputorpulseoutput) 4-linesimulativeoutputbyopticaldevice ThefirstoutputUa,Ia,Pa,Qa,PFa,PFaverage Thesecondoutput Ub,Ib,Pb,Qb,PFb,P(total),Ia ThethirdoutputUc,Ic,Pc,Qc,PFc,Q(total),F,PF ThefourthoutputUb,Ib,Pc,Qc,PFc,Q(total),F,PFaverage Nooutputofeveryphasepowerfactorandreactivepowerwhen4wire-3systemsconnection,outputallparametersforothertypes. 5)Measurementmode Three-hasethree-line,three-hasefour-lineorsinglephasetwo-linemode PTtransformratio 1 5000 CTtransformratio 1 5000 6)DisplayLED/red,5Arabicnumeralseveryline,threelines.Displaymodelsettedasmanualorauto-scan 7)Communicationport Oneport RS485orRS232 MODBUSprotocol(RTUMODEL) Baundrate 1.2k/2.4k/4.8k/9.6k/19.2k Address 1 254 3,Definitionsofmeterquantities 1)Normativereferences BasicParameters GB/T13850-1998(IEC688-1992) Activeenergy GB/T17215-2002(IEC61036-2000) ReactiveenergyGB/T17882-1999(IEC61268-1995) 2)Accuracyrequirements 0.5%fs 3)Input Voltage referencevoltage220V(57.7V/100V/380V) Current ratedcurrent5A(1A) power MAX6500(W/var/VA)Frequency 45-65Hz 4)Load Voltage<1VA/phase(Un=220V) Current<0.5VA/phase(In=5A) 5)Overload Current 1.2×Incontinued 10×Infor10s Voltage 1.2×Uncontinued 2×Unfor10s 6)Insulation IEC688/IEC255-3(1989) 2kVACrms1min,forinputandoutputandcaseandpowerparts 7)Electromagneticcompatibility Testofimmunitytoelectrostaticdischarges IEC-61000-4-2class4 Fasttransientbursttest IEC61000-4-4class3 Surgeimmunitytest IEC61000-4-5class4 Testofstep-downtransient,interrupttransientandVoltagechangeanti-jamming IEC61000-4-11 8)Climaticconditions Temperaturerange -20°C +60°C Relativehumidity RH20% 95%(nodew) 9)Protectionagainstpenetrationofdustandwater Name-plates IP52 10)Storageconditions Temperaturerange -25°C +70°C Relativehumidity RH20% 95% 11)AC80-270V,45-65Hz,DC80-380V DC20-60V(selectable) Powerconsumption ≤6w 12)Externaldimension Length×width×height 96mm×96mm×88mm 13)Installationdimension Length×width 91+1mm×91+1mm