XITRON XT2640 - Testing Compliance to Harmonics Emissions Standards; Standards Compliance; Relevant Standards

XT2640OperatingManual 13July2016 Page87of187
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18 TESTINGCOMPLIANCETOHARMONICSEMISSIONSSTANDARDS
IftheXT2640hasbothoptionsENandH500installedthenitiscapableofperformingEUTtestingforcompliancetoEN61000‐3‐2or
EN61000‐3‐12mainssupplyharmonicsemissionsstandards.Themethodbywhichyoumayperformthisisdescribedinthis
section.
Thestandardsreferencedinthissectionarelicensed,copyrightedmaterialandcannotbereprinted,eveninpart,inthismanual.
Throughoutthissectionitisassumedthatyouhaveaccesstotheapplicablestandards.
ItisassumedinthissectionthatyouareconversantwiththegeneraloperatingmethodsusedintheXT2640asdescribedinsection
12ofthismanual.
Note:
MakingacomplianceassessmentofaEUTtotherequirementsofEN61000‐3‐2or‐12canonlybeperformedfromthe
frontpaneloftheXT2640anddoesnotrequiretheuseofacomputer.TheassessmentresultscanberecordedtoaUSB
driveattachedtotheXT2640inthecommonlyusedtextualCSVformat,andanyscreenimagescanalsobesavedinBMP
formatforrecordingpurposes.ThisUSBdrivecanthenbetransferredtoacomputerandareportdocumentgeneratedby
youasneeded.Ifpreferred,theXT2640maybeconfiguredforEN61000‐4‐7measurementsbyconfiguringthe
measurementmodeoftheXT2640toeitherEN61000‐3‐2or‐12andthemeasurementscanbeobtainedviaaninterface
whichallowsyoutoperformcompliancetestingviaaninterfacewithsuitablecomputersoftwarewhichimplementsthe
assessmentrequirements(XiTRONdoesnotprovidesuchsoftware).
InsomesituationsyoumayberequiredtomakemeasurementsofresultssuchasTHCwithoutactuallyperformingan
assessmentoftheEUT.GenerallythisisarequirementinthestandardswhichistobeperformedbyaEUTmanufacturer
topredeterminetheEUTconditionsunderwhichtoprovideformalassessmentsoftheEUTundertakenbyatestingagency.
InthesesituationsyoushouldconfiguretheXT2640fortheapplicablemeasurementmode(EN61000‐3‐2or‐12)anduse
theHARMONICSscreentoviewtheactual“real‐time”THCmeasurementresultwhilechangingtheEUTconditions.You
canrecordthisresultbysavinganimageoftheapplicableHARMONICSscreenfromtheXT2640toaUSBdrive,whichalso
containstheactualharmonics.Youshouldalsoconsiderthatthesupplysourceandwiringbetweenthesupplysource,
XT2640andtheEUTmayaffecttheseresultssogenerallyshouldbeinaccordancewiththestandardrequirements.In
thesesituationsonlysections18.1.2and18.2mayhaverelevancetoyou.
WhenconfiguredforEN61000‐3‐2or‐12measurementmodesthemajorityofthefunctionsandmeasurementavailability
intheXT2640areunchanged.Thechanges,necessaryasaresultoftherequirementsofEN61000‐4‐7,areasfollows‐
Thefundamentalfrequencyrange,themeasurementbandwidth,themeasurementperiod,thenumberof
harmonics,andtheresponsefilteringareallsetaccordingtoEN61000‐4‐7andcannotbealtered.
DCONLYcouplingisnotavailable.
TheFREQSPEEDpreferencesettingisignored.
The3ø3w(2ch)WIRINGconfigurationisnotavailable.
ThemethodofmakingharmonicsmeasurementsisasdefinedbyEN61000‐4‐7;thespecificationsforharmonics
in28.2ofthisdocumentdonotapply.
HarmonicsarenotavailableforWattsorinter‐channelVoltages.
Harmonicsphaseforotherthanthe1
st
harmonic(i.e.thefundamental),andthecurrent5
th
harmonicwhen
EN61000‐3‐12isconfigured,arenotavailable.Whenavailable,thecurrent5
th
harmonicphaseisrelativetothe
voltagefundamentalratherthantothecurrentfundamentalasitisusuallyreportedbytheXT2640.
CertainXT2640activitiescanbeperformedwhileinthesemodesbutmustnotbeperformedwhileanassessment
isinprogress‐
Themeasurementmodemustnotbechanged.
ThechannelcontentofVPA1mustnotbechanged.
TheInternalandExternalDCZerocapabilityintheSYSCONFIGscreenmustnotbeused.
AscopecaptureusingtheINRUSHCaptureModemustnotbeperformed.
18.1 STANDARDSCOMPLIANCE
WhenperformingassessmenttestingtotherequirementsoftheEN61000‐3‐2and‐12youareoftenperformingalegalregulatory
requirement.Assuchyoumayneedtobeinpossessionofjustificationshowingthatthemeasurementresultsarecompliant.This
sectionassistsyouwiththatjustificationandalsoprovidesinformationwhichmaybeofgeneralusetoyouregardingthese
assessments.
18.1.1 RELEVANT STANDARDS
TheXT2640canbeconfiguredandperformassessmenttestingtoeitherofthefollowingstandards‐
EN61000‐3‐2:2014.
Limitsforharmoniccurrentemissions(equipmentinputcurrent≤16Aperphase).
EN61000‐3‐12:2011(withcorrigendumOct.2013).
Limitsforharmoniccurrentsproducedbyequipmentconnectedtopublic
low‐voltagesystemswithinputcurrent>16Aand≤75Aperphase.
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Bothofthesestandardshavenormativereferences(AnnexBofEN61000‐3‐2andclause7.2ofEN61000‐3‐12)requiringthatthe
measurementequipment(i.e.theXT2640)meetthemeasurementrequirementsofEN61000‐4‐7.TheXT2640iscompliantasa
Class1devicetothefollowingstandard‐