TheMicroOhmmetersRMO-Gisdesignedformeasuringcontactresistancesofnon-inductivetestobjectsusedintheelectricpowerindustryorsimilarbranches.Itisemployedforresistancemeasurementduringmanufacturing,commissioningandtestingof:Powercircuitbreakers,Interrupters,Barinstallation,Cablesplices,Weldedjoints,Grounding

Dischargetesterhasthreekindsofmodels,whichare:1.Ultrasonicconfiguration:PD2501-A2.Theuhfconfiguration:PD2501-u3.Theultrasonic+uhfconfiguration:PD2501-A/USummary:PD2501-A/UbureauputelectricitytesterwasmadebyGermanPDcompany,thecompanyspecializedinelectricpowerequipmentresearchanddevelopmentandmanufactureofpartialdischargedetectionequipment,includingGISpartialdischargetestequipment/GIL,transformerpartialdischargetesttestequipment,generatorpartialdischargetestequipmentandcablepartialdischargetestequipmentandsoon. GISbecauseofitssmallsizeandhighreliabilityiswidelyused,buttherearealsobecauseoffreeparticles,insulationfaulthappensintheinsulatorandthedefectisaccompaniedbypartialdischargeoccurs,thuspartialdischargedetectionisoneoftheeffectivemethodsofelectricpowerequipmentinsulationconditiondiagnosis.TheAIACompactpartialdischargetesterismainlyusedinGIS,GILpartialdischargetest.Thedeviceisaportabletestingequipment,canalsobeappliedtothetransformer,thepartialdischargemeasurementofcableaccessories.Forthediagnosisofsomedefect,suchasaerosols,ultrasonictestingismuchbetterthantheusualelectricaltestoftheparticulatematterinthenewlyinstalledorafteroverhauloftheGIS,canleadtoflashflippingorbreakdown.Thisequipmentcanalsobeconnectedultra-highfrequency(UHF)sensors,frequencybandwidth:300MHZto2GHZ.Thedevicecanautomaticallyidentifytypesofsensors,automaticconversionbetweendifferenttypesofsensors.UHFUHFmethodismeasuringtechniquedevelopedinrecentyears,itadoptsthemeasurementwithintheGISinsulationhiddendangersinoperatingvoltageundertheradiationofelectromagneticwavetodeterminewhetherGISinternalpartialdischarge,UHFfrequencymethod,thebiggestadvantageiscaneffectivelyrestrainbackgroundnoise,suchascoronaproduceelectromagneticinterference.UHFsignalfrequencyishigh,strongpenetrability,aftertheinsulator,canthroughtheinsulatorwithmetalflangejointexternalarrivedinGIS,andthereforecanbeontheoutsideofthebasininsulatormeasuringUHFsignalwithintheGIS.

Productmodel:SF6-FTIR-401Origin:Germany1.TheSF6features:Sulfurhexafluoride(SF6)gas,bytwoFrenchchemistMoissanandLebeausynthesisin1900.Fromabout60s,SF6gasasexcellentinsulationandarcingmediumsuccessfullyappliedinthehighvoltageswitchanditsequipment.Today,inthefieldofhighpressure,ultra-highpressureandultra-highvoltage,SF6gasalmostbecometheonlyinsulationcircuitbreakerandGISandarcingmedium.2.ThegenerationofSF6decomposition:Whennotpure,SF6productcontaininghightoxicandlowsulfur,hydrogenfluoride,fluorideandothertoxicgases.Theproductofpartialdischarge,suchas:1)2sf6+O2->2sof2+8f(thionylfluoride)2)2sf6+O2->2sof4+4f(foursulfurylfluoride)3)theSF6-SF4+2f(sulfurtetrafluoride)4)theSF6-S+6f(S)5)2sof4so2f2+O2->2+4f(sulfurylfluoride)6)SF4+H2O-SOF2+2hf(hf)7)SOF4+H2O-SO2F2+2hf(hf)8)SOF2+H2OandSO2+2hf(sulfurdioxide) PartialdischargeofSF6decompositionwillaccelerateinsulationagingandcorrosionofmetalsurfaces,sincetheelectricalequipmentinsulationdegradationwilldirectlyleadtopartialdischarge,andevenbreakdown,shortentheservicelifeofelectricalequipment,theseriousinfluencetothesafeoperationofelectricalequipment BeforeandafterpicturesofinsulationmaterialsinSF6decompositioncorrosion  InsulationmaterialinSF6decompositiontablecompressionstrengthbeforeandaftercorrosion  3.Thepartialdischargedetectiontechnology-chemicalmethodsappliedinpartialdischargedetectionSF6decompositionmethodisusedforSF6inflatableelectricpowerequipmentfaultdiagnosis.PowersystemathomeandabroadhavebeenwidelycarriedoutpowerequipmentSF6decompositionspeciesandcontentdetection,throughthetechnologyhasalreadyfoundsomeelectricalfault,especiallyintheapplicationofpartialdischargeinGIS.Butbasedonthelimitationofthedetectiontechnology,atpresentbasedonthechemicalsensortechnologyonlycandetectSO2,H2S,severalbasicmaterialsuchasHFcontentandhasconsiderablelimitations.Forexample:SOF2;SF4;SOF4;SO2F2;S2F10;CO;COS.MaterialssuchasSiF4cannotbedetected.ButSOF4decompositionisexistenceandequipmentofadirectrelationshipbetweenthepartialdischarge.4.Infrared(FTIR)spectroscopy:Sincethe1970stothepresentinmorethan30years,Fouriertransforminfraredspectroscopy(FTIR)isdevelopingveryrapidly,asthecontinuousdevelopmentofFouriertransforminfraredspectroscopy,infraredspectrometerisinconstantdevelopment,constantlyupdated.Theemergenceofnew,advancedinfraredspectrometerattachments,makethefunctionofinfraredspectrometerattachmentsconstantlyexpanding,continuouslyimproveperformance,tomakeinfraredspectrumtechnologyismorewidelyused.Theinfraredabsorptionspectrumanalysisistoidentifycompoundsanddeterminethecommonuseofthemolecularstructureofmatter.Forasinglecomponentorcomponentsinthemixturecanquantitativeanalysis,especiallyforsomedifficulttoseparateandnoobviouscharacteristicpeaksinultraviolet,visibleareaofthesampleandquantitativeanalysisisfastandconvenienttocomplete.Infraredspectroscopyisthestudyoftheatomsinmoleculesofrelativevibration,canbesummedupinachemicalbondvibration.Differentchemicalbondsorfunctionalgroups,anditsvibrationlevelfromthegroundstatetransitiontotheenergyfortheexcitedstateisdifferent,sotoabsorbdifferentinfraredlight.Materialabsorptionofdifferentinfraredlight,willappearindifferentwavelengthabsorptionpeaks,infraredspectrumwascreated.Infraredspectrummeasurementintheareaislocatedinthe~400cm,4000cm-1-1,or2.5mmto25mmUinthesamemeasuretime,thesignal-to-noiseratiooftheFouriertransforminfraredspectrometerandobviouslyincreasethesensitivity.Takenthescanningspeed,Fouriertransforminfraredspectrometercanbemeasuredin1secondsmorethanirspectra.Takentheluminousfluxisbig,candetecttransmission,lowsampletouseavarietyofaccessories,suchasdiffuse,specularreflectionandattenuatedtotalreflection;Inadditiontodetectsamplesofdifferentforms,suchasgas,solid,liquid,thinfilmandmetalcoating.Takenthehighresolution,easytoobservethefinestructureofthegaseousmolecules.Takenthedeterminationofwidespectralrange,aslongasthelightsourcechangeaccordingly,beamsplitterandthedetectorconfiguration,youcangetthewholeintheinfraredspectrum.UwaveNumbersofhighprecision,duetothehighmonochromaticityofHe-Nelasertocontrolandmeasuretheinterferencepatternandsampling,makehighwavenumberspectrumcalculatedprecision.5.InfraredspectroscopyforSF6decompositionmulticomponentanalysis:ForeignSF6gasdecompositionresearchhasbeenconductedformanyyears,andobtainedconsiderableachievements.GermanchemicalDr.Dr.MrKurteandhisleadershipteamaftertenyearsofexplorationandresearch,combinedwithinfraredspectrumtechnologyandtheresearchofSF6decompositioncomponents,developedbasedontheinfraredspectroscopyofSF6decompositionmulticomponentanalysissystem,andequippedwithdedicateddatabasesystem.TheSF6decompositionanalysisequipmenthasbeenwidelyusedinelectricpowerengineering,hasplayedanimportantroleonpowerequipmentfaultdiagnosis.Specifictestingdataandthedetectionlimittoseethetablebelow: Theserialnumber decomposition TheminimumdetectionlimitPPMV 序号Theserialnumber decomposition TheminimumdetectionlimitPPMV1SO2108CO52HF0.59COS13SOF2510SiF424SF4211CO255SOF4312CF426SO2F2113H20107S2F102    FTIR-SF6decompositionanalysissyst

TheTapChangerAnalyzer&WindingOhmmeterRMO-TDisastand-aloneorPC-controlleddigitalinstrumentdesignedfordetailedanalysisofon-loadtapchangersandformeasuringresistancesofinductivetestobjectsusedintheelectricpowerindustryorsimilarindustries.Itisemployedforresistancemeasurementduringthemanufacturing,commissioningandtestingof:Transformers,On-loadtapchangers,De-energizedtapchangers,Generatorsandelectricalmotors,Highcurrentbusbarjoints,Cablesplices.TheRMO-TDisalsocapableofautomatictransformerdemagnetization.ItisrecommendedtoperformtransformerdemagnetizationafterallDCcurrenttesthavebeencompletedinordertoavoidproblemssuchaserroneousdiagnosticelectricalmeasurementsonatransformeroraninrushcurrentatthestart-upofthepowertransformerorincorrectoperationofprotectiverelaysduetomagnetizedCTcores.TheRMO-TDisalsousedtocreatetheautomaticresistance/temperaturemeasurementfortheHeatRuntesttogetherwiththeDV-Winsoftware.AnyusesoftheRMO-TDotherthantheonesmentionedaboveareconsideredimproperandwillinvalidatewarrantyclaims.

TheThree-phaseTransformerTurnsRatioTesterTRT63isdesignedspecificallyforperformingmeasurementsonpower,distributionandmeasurementtransformersasfollows: •Turnsratiomeasurement•Phaseshiftmeasurement•Excitationcurrentmeasurement Thesethreetestsareperformedatthesametime.TRT63appliestestvoltagetoHterminalsandmeasuresinducedvoltageatXterminals.Theratioofthesevoltagesisactuallytheturnsratioofatransformer.Atthesametime,TRT63measurestheexcitationcurrentattheHVtransformerside,aswellasthephaseanglebetweentheappliedtestvoltageandinducedvoltage. Therearethreewaystoperformthemeasurementsdependingonthetestobjectandatestvoltage.Ifthetestobjectisasingle-phasetransformer,asingle-phaseautotransformer,oracurrenttransformer,TRT63providesasingle-phasetestvoltagetoappropriateHterminalsandmeasurestheinducedvoltageatcorrespondingXterminals. Ifthetestobjectisathree-phasetransformerorathree-phaseautotransformer,TRT63canapplyeitherthreesingle-phasetestvoltagesinturnsoratruethree-phasetestvoltagetoHterminals.ThreeinducedvoltagesattheXterminalsaremeasured.

ThedevicesfromtheTWAseriesarestand-aloneorPC-controlleddigitalinstrumentsdesignedforanalysisofon-loadtapchangersandformeasuringresistancesofinductiveandresistivetestobjectsusedintheelectricpowerindustryorsimilarindustries.Itisemployedforresistancemeasurementduringthemanufacturing,commissioningandtestingof:•Transformers,•On-loadtapchangers,•Generatorsandelectricalmotors,•Highcurrentbusbarjoints,•Cablesplices. TheTWA40Dmodelsupportssimultaneousthree-phasetapchangeranalysisandsimultaneousthree-phasewindingresistancemeasurementforwindingsconnectedinYNconfiguration.Both,theTWA40DandTWA25Kmodelsaredesignedforsix-windingresistancemeasurementofallsixtransformerwindingswithasingle-steptestleadconnection.TheTWAgeneratesatrueDCripplefreecurrent.Injectionofcurrentaswellasanautomaticdischargeofenergyfromthemagneticcircuitareautomaticallyregulated.TapchangeranalysisperformedbytheTWAincludesboth,thestaticandthedynamicresistancemeasurements. TheTWAisalsocapableofautomatictransformerdemagnetization.ItisrecommendedtoperformtransformerdemagnetizationafterallDCcurrenttestshavebeencompletedinordertoavoidproblemssuchaserroneouselectricalmeasurementsanddiagnosticsoraninrushcurrentatthestart-upofapowertransformerorincorrectoperationofprotectiverelaysduetomagnetizedCTcores.

TheCATisdesignedforconditionassessmentofHV/MVcircuitbreakersinelectricutilitiesandindustrialfacilities. Typicalapplicationsare:•Simultaneousmeasurementof6Maincontacts(2breaksperaphase)includingpre-insertionresistors(ifpresentinthecircuitbreaker)and6auxiliarycontacts, •Resistancemeasurementofthepre-insertionresistors(ifpresentinthecircuitbreaker),•Evaluationofsynchronizationbetweenthecircuitbreakerpoles,•Measurementofthecoilcurrents,simultaneouslyfor4coils,•Evaluatingthestateofthesubstation’sbatteriesbygraphicallyshowingthevoltagevalue,•Measurementofdisplacement,contactwipe,over-travel,rebound,dampingtimeandaveragevelocityofthebreaker’smovingparts,•“Firsttrip”test•Staticresistancemeasurement•Dynamicresistancemeasurement

Circuitbreakerclosingphaseselectionmeasuringdevice