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    3-PHASEPOWERQUALITY

    ANALYZER 3945 PowerPad

    E N G L I S H User Manual

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    Owners Record

    TheserialnumberfortheModel3945islocatedoutsideonthebackoftheinstru-

    ment.Pleaserecordthisnumberandpurchasedateforyourrecords.

    PowerPad MODEL 3945 w/MN93

    CATALOG #:2130.75

    SERIAL #: ______________________________________________________________

    PURCHASE DATE: _______________________________________________________

    DISTRIBUTOR: __________________________________________________________

    PowerPad MODEL 3945 w/SR193

    CATALOG #: 2130.76

    SERIAL #: ______________________________________________________________

    PURCHASE DATE: _______________________________________________________

    DISTRIBUTOR: __________________________________________________________

    PowerPad MODEL 3945 w/24" AMPFLEX 193-24

    CATALOG #: 2130.77

    SERIAL #: ______________________________________________________________

    PURCHASE DATE: _______________________________________________________

    DISTRIBUTOR: __________________________________________________________

    PowerPad MODEL 3945 w/24" AMPFLEX 193-36

    CATALOG #: 2130.78

    SERIAL #: ______________________________________________________________

    PURCHASE DATE: _______________________________________________________

    DISTRIBUTOR: __________________________________________________________

    PowerPad MODEL 3945 w/MR193

    CATALOG #: 2130.79

    SERIAL #: ______________________________________________________________

    PURCHASE DATE: _______________________________________________________

    DISTRIBUTOR: __________________________________________________________

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    Table o Contents

    1. INTRODUCTION ............................................................................... 5

    1.1 InternationalElectricalSymbols...........................................................5

    1.2 ReceivingYourShipment.....................................................................6

    1.3 OrderingInformation............................................................................6

    1.3.1 AccessoriesandReplacementParts......................................6

    1.3.2 ThirdPartyAccessories..........................................................7

    2. PRODUCT FEATURES ...................................................................... 82.1 Description...........................................................................................8

    2.2 ControlFunctions.................................................................................9

    2.3 Display...............................................................................................11

    2.4 BatteryChargeStatus........................................................................13

    3. SPECIFICATIONS........................................................................... 14

    3.1 ReferenceConditions.........................................................................14

    3.2 ElectricalSpecications.....................................................................14

    3.2.1 VoltageInputs.......................................................................14

    3.2.2 CurrentInputs.......................................................................15

    3.2.3 AccuracySpecications........................................................15

    3.2.4 NominalRangeofUse..........................................................16

    3.2.5 PowerSupply........................................................................163.3 MechanicalSpecications..................................................................17

    3.4 EnvironmentalSpecications.............................................................17

    3.5 SafetySpecications..........................................................................17

    3.6 ACCurrentProbeModelSR193............................................................... 18

    3.7 ACCurrentProbeMN93Probe.........................................................19

    3.8 ACCurrentProbeMN193Probe............................................................... 20

    3.9 ACCurrentProbeAmpFlexProbe........................................................... 21

    3.10 ACCurrentProbeMR193Probe............................................................. 22

    3.11 Three-phase5AAdapterBox.............................................................24

    3.11.1 ConnectingtoSecondaryCurrentTransformer(CT)............24

    3.11.2 Specications........................................................................25

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    4. OPERATION .................................................................................. 26

    4.1 InstrumentConguration(Set-upmode)....................................26

    4.1.1 Date/Time............................................................................27

    4.1.2 Contrast/Brightness............................................................27

    4.1.3 Colors....................................................................................28

    4.1.4 CalculationParameters.........................................................28

    4.1.5 ElectricalHookup(electricalnetwork)...................................29

    4.1.6 CurrentSensors....................................................................30

    4.1.7 BaudRate.............................................................................31

    4.1.8 Recording..............................................................................32

    4.1.9 Alarm.....................................................................................33

    4.1.10 ClearMemory.......................................................................35

    4.1.11 LineFrequency.....................................................................35

    5. DISPLAY MODES ........................................................................... 36

    5.1 WaveformMode .......................................................................36

    5.1.1 RMSVoltageMeasurementonaThree-phaseSystem........36

    5.1.2 RMSVoltageMeasurementon3Phases.............................. 375.1.3 RMSCurrentMeasurementonthe3Phasesand

    NeutralCurrentonaThreePhase- 4WireSystem..............38

    5.1.4 TotalHarmonicDistortionMeasurementonOnePhase.......38

    5.1.5 MinimumandMaximumCurrentValueMeasurements........39

    5.1.6 SimultaneousDisplayofDifferentCurrentMeasurements...40

    5.1.7 PhasorDiagramDisplay(FresnalDiagram).........................41

    5.2 HarmonicsMode ....................................................................425.2.1 SinglePhaseandPhase-to-PhaseVoltageAnalysis............42

    5.2.2 SinglePhaseandPhase-to-PhaseCurrentAnalysis............43

    5.2.3 PowerandDirectionFlowAnalysis.......................................44

    5.2.4 HarmonicAnalysisinExpertMode.......................................45

    5.3 Power/EnergyMode ..............................................................46

    5.3.1 StartingandStoppingEnergyTotalization............................46

    5.3.2 Button..........................................................................47

    5.3.3 PF...Button...........................................................................47

    5.4 TransientMode ........................................................................48

    5.4.1 OpeningPreviouslyStoredTransients..................................50

    5.4.2 StoringtheTrigger................................................................50

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    5.5 AlarmMode .................................................................................52

    5.6 RecordingMode ......................................................................53

    5.6.1 SavingtheSelectedParameters..........................................53

    5.6.2 SelectingorDeletingaRecord.............................................555.6.3 SelectingaGraphicDisplayforRecordedMeasurements......56

    5.7 SavingaDisplay ......................................................................59

    5.8 OpeningaPreviouslySavedSnapshot ...................................60

    5.9 Printing .....................................................................................61

    5.10 Help .........................................................................................61

    6. DATAVIEW SOFTWARE ................................................................ 62

    6.1 Introduction........................................................................................62

    6.2 Features.............................................................................................63

    6.3 DataviewSoftwareInstallation...........................................................63

    6.4 ConnectingtheModel3945toyourComputer..................................68

    6.5 UsingDataView................................................................................68

    6.6 ConguringtheInstrument.................................................................70

    6.6.1 GeneralFunctions.................................................................72

    6.6.2 Set-upConguration.............................................................72

    6.6.3 PowerPadDisplayConguration.........................................73

    6.6.4 AlarmConditionsConguration............................................74

    6.6.5 RecordingsConguration.....................................................756.6.6 TransientsConguration.......................................................77

    6.6.7 EN50160Conguration.........................................................78

    6.7 RunningtheTest................................................................................79

    6.8 Real-timeWindows............................................................................79

    6.8.1 Waveform,HarmonicBarandHarmonicText.......................79

    6.8.2 Power/Energy.......................................................................80

    6.8.3 Trend.....................................................................................81

    6.9 DownloadingDatatoDatabase.........................................................81

    6.9.1 Recordings............................................................................82

    6.9.2 Photographs..........................................................................83

    6.9.3 Alarms...................................................................................84

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    6.9.4 Transients.............................................................................84

    6.9.5 EN50160...............................................................................86

    6.9.6 SessionProperties................................................................87

    7. MAINTENANCE ............................................................................. 887.1 RechargingandChangingtheBattery...............................................88

    7.2 Cleaning.............................................................................................88

    APPENDIX A: MATEMATICAL FORMULAS ........................................... 89

    Half-periodVoltageandCurrentRMSValues....................................89

    MIN/MAXValuesforVoltageandCurrent........................................89

    PeakValuesforVoltageandCurrent.................................................90

    PeakFactorsforCurrentandVoltage................................................90

    1secRMSValuesforVoltageandCurrent........................................91

    VoltageandCurrentUnbalance.........................................................91

    THDCalculation.................................................................................91

    CalculationofHarmonicBins.............................................................92

    DistortionFactorCalculation(DF)......................................................93

    KFactor..............................................................................................93

    DifferentPowerLevels1Sec.............................................................94

    Ratios ..............................................................................................94

    VariousTypesofEnergy....................................................................95

    Hysteresis..........................................................................................96

    APPENDIX B: GLOSSARY OF TERMS................................................... 97

    RepairandCalibration......................................................................................100

    TechnicalandSalesAssistance.......................................................................100

    LimitedWarranty..............................................................................................101

    WarrantyRepairs..............................................................................................101

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    Power Quality Analyzer Model 3945 5

    CHAPTER 1

    INTRODUCTION

    Warning

    Neveruseoncircuitswithavoltagehigherthan600Vandanovervoltage

    categoryhigherthanCat.III.

    Useinindoorenvironmentsonly.

    Only use accessories that are compliant with the safety standards

    (IEC664-1Ed.92)600VminandovervoltageCat.IIIorIV.

    Onlyusefactoryspeciedreplacementparts.

    Alwaysdisconnectthepowercord,measurementleadsandsensorsbe-

    forereplacingthebattery.

    1.1 International Electrical Symbols

    This symbol signifes that the instrument is protected by double or reinorcedinsulation.

    This symbol on the instrument indicates a WARNING and that the operator mustreer to the user manual or instructions beore operating the instrument. In thismanual, the symbol preceding instructions indicates that i the instructions are

    not ollowed, bodily injury, installation/sample and product damage may result.Risk o electric shock. The voltage at the parts marked with this symbol maybe dangerous.

    This symbol reers to a type A current sensor. This symbol signifes that applica-tion around and removal rom HAZARDOUS LIVE conductors is permitted.

    This symbol reers to a type B current sensor. Do not apply around or removerom HAZARDOUS LIVE conductors without additional protective means (de-energizing the circuit or wearing protective clothing suitable or high voltage

    work).

    In conormity with WEEE 2002/96/EC

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    Power Quality Analyzer Model 3945

    1.2 Receiving Your Shipment

    Makesurethat the contentsshippedare consistentwiththe packing list.Notify

    yourdistributorofanymissingitems.

    Iftheequipmentappearstobedamaged,leaclaimimmediatelywiththecarrier

    andnotifyyourdistributoratonce,givingadetaileddescriptionofanydamage.

    Savethedamagedpackingcontainertosubstantiateyourclaim.

    Donotuseequipmentwhichisdamagedorappearstobedamaged.

    NOTE:Ater receiving your PowerPad shipment, charge and discharge the

    instrument one or two cycles to ensure the proper level display o the battery

    indicator.

    1.3 Ordering Inormation

    PowerPadModel 3945 w/MN93....................................................Cat. #2130.75Includes set of three MN93 (240A) probes, four 10 ft color-coded voltage leads, four color-coded alligator clips,

    RS-232 DB9F optically coupled serial cable, NiMH battery, US 120V power cord, DataView software, carrying

    bag, soft carrying pouch and user manual.

    PowerPadModel 3945 w/SR193..................................................Cat. #2130.76Includes the PowerPad Model 3945, set of three SR193 (1200A) probes, four 10 ft color-coded voltage leads,

    four color-coded alligator clips, RS-232 DB9F optically coupled serial cable, NiMH battery, US 120V power cord,

    DataView software, carrying bag, soft carrying pouch and user manual.

    PowerPadModel 3945 w/24" AmpFlex193-24..........................Cat. #2130.77Includes the PowerPad Model 3945, set of three 24" AmpFlex193-24 (6500A) probes, four 10 ft color-coded

    voltage leads, four color-coded alligator clips, RS-232 DB9F optically coupled serial cable, NiMH battery, US

    120V power cord, DataViewsoftware, carrying bag, soft carrying pouch and user manual.

    PowerPadModel 3945 w/36" AmpFlex193-36..........................Cat. #2130.78Includes the PowerPad Model 3945, set of three 36" AmpFlex193-36 (6500A) probes, four 10 ft color-coded

    voltage leads, four color-coded alligator clips, RS-232 DB9F optically coupled serial cable, NiMH battery, US

    120V power cord, DataView software, carrying bag, soft carrying pouch and user manual.

    PowerPadModel 3945 w/MR193..................................................Cat. #2130.79Includes the PowerPad Model 3945, set of three color-coded MR193 (1000AAC/1400ADC)probes, four 10 ft

    color-coded voltage leads, four color-coded alligator clips, RS-232 DB9F optically coupled serial cable, NiMh

    battery, US 120V power cord, DataView software, carrying bag, soft carrying pouch and user manual.

    PowerPadModel 3945 w/MN193..................................................Cat. #2130.80Includes the PowerPadModel 3945, set of three color-coded MN193 (6A/120A) probes, four 10 ft color-coded

    voltage leads, four color-coded alligator clips, RS-232 DB9F optically coupled serial cable, NiMh battery, US

    120V power cord, DataView software, carrying bag, soft carrying pouch and user manual.

    1.3.1 Accessories and Replacement Parts

    Setof3color-coded,MN93Probes(240A)......................................Cat. #2140.09

    Setof3color-coded,SR193Probes(1200A)..................................Cat. #2140.10

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    Power Quality Analyzer Model 3945

    Setof3color-coded,24"AmpFlex193-24Probes(6500A)........... Cat. #2140.11

    Setof3color-coded,36"AmpFlex193-36Probes(6500A)........... Cat. #2140.12

    Setof3color-coded,MR193Probes(1000AAC /1400ADC).............Cat. #2140.13

    Setof3color-coded,MN193Probes(6A /120A)..............................Cat. #2140.14

    MR193probe(blackconnector)(1000AAC /1400ADC).....................Cat. #2140.28ReplacementPouch......................................................................... Cat. #2140.15

    ReplacementLeadSetwithClips.....................................................Cat. #2140.16

    5AAdaptorBox(for1or5Aprobes)................................................. Cat. #2140.17

    10ftCable,PCRS-232,DB9F/F.....................................................Cat. #2140.18

    ReplacementBattery9.5VNIMH.....................................................Cat. #2140.19

    LargeToolBag-No.5...................................................................... Cat. #2119.82

    DPU414-30BSeikoSerialPrinterwithAccessories(powersupply,rechargeablebatteryand5rollsofpaper)...............Cat. #2140.21

    Paper,setof5rolls,forusewithPrinterDPU414-30B.....................Cat. #2140.22

    1.3.2 Third Party Accessories

    Converter-USBtoRS-232,DB9M/M................ availableonlineatwww.startech.com

    Converter-EthernettoRS-232,ModelESP901...availableonlineatwww.bb-elec.com

    Order Accessories and Replacement Parts Directly Online

    Check our Storefront atwww.aemc.com/store for availability

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    Power Quality Analyzer Model 3945

    CHAPTER 2

    PRODUCT FEATURES

    2.1 Description

    ThePowerPadModel3945isathree-phasepowerqualityanalyzerthatiseasy-

    to-use,compactandshock-resistant.Itisintendedfortechniciansandengineers

    tomeasureandcarryoutdiagnosticworkandpowerqualityworkonone,twoor

    threephaselowvoltagenetworks.

    Usersareabletoobtaininstantwaveformsofanelectricalnetworksprincipalchar-

    acteristics,andalsomonitortheirvariationoveraperiodoftime.Themulti-taskingmeasurementsystemsimultaneouslyhandlesallthemeasurementfunctionsand

    waveformdisplayofthevariousmagnitudes,detection,continuousrecordingsand

    theirdisplaywithoutanyconstraints.

    Features:

    Measurement of TRMS voltages up to 480V (phase-to-neutral) or 830V

    (phase-to-phase)fortwo,threeorfour-wiresystems

    MeasurementofTRMScurrentsupto6500Arms MeasurementofDCvoltageupto850V

    MeasurementofDCcurrentupto1400ADC(withMR193probe)

    Frequencymeasurement(41to70Hzsystems)

    CalculationofneutralcurrentforWYEcongurations

    CalculationofCrestFactorsforcurrentandvoltage

    CalculationoftheKFactorfortransformers

    Calculationofshort-termickerforvoltage

    Calculationofthephaseunbalanceforvoltageandcurrent(3phaseonly)

    Measurementofharmonicanglesandrates(referencedtothefundamental

    orRMSvalue)forvoltage,currentorpower,upto50thharmonic

    Calculationofoverallharmonicdistortionfactors

    Monitoringoftheaveragevalueofanyparameter,calculatedoveraperiod

    runningfrom1secto2hrs

    Measurementofactive,reactiveandapparentpower perphaseandtheir

    respectivesumtotal Calculationofpowerfactor,displacementpowerfactorandtangentfactor

    Totalpowerfromapointintime,chosenbytheoperator

    Recording,timestampingandcharacterizationofdisturbance(swells,sags

    andinterruptions,exceedenceofpowerandharmonicthresholds)

    Detectionoftransientsandrecordingofassociatedwaveforms

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    Power Quality Analyzer Model 3945 9

    2.2 Control Functions

    MODEL 3945

    PowerPad

    W?

    2

    6 7

    8

    9

    10

    11

    3

    1

    4

    5

    300V

    RMS

    0

    -300

    3U

    3V

    3A

    L1

    L2

    L3

    THD CFmax

    min

    0.3 v 0.3 v 0.3 v1 2 3

    07/25/0249.99Hz 10:26 100%

    12

    Figure 2-1

    Overmoldedprotectivecase.

    ColorLCDdisplaywithgraphicrepresentationofsystemparametersandmeasurements

    Six(6)functionbuttonsusedtomodifythedisplaymode.

    Four(4)functionbuttonswhichallowtheuserto:

    Accesstheinstrumentsetupparameters(see 4.1).

    Take asnapshotof the currentscreen or access screens already

    stored in the memory. Record associated waveform and powermeasurementdata.

    Printthemeasurementresultsonanexternalprinter.

    Gethelponthecurrentdisplayfunctions,inthelanguagechosenby

    theuser.

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    10 Power Quality Analyzer Model 3945

    ON/OFFbutton.

    Three (3) current inputs on the top of the instrument to enable the use ofcurrentsensors(MN,SR,AmpFlex,andMRprobes).

    Four(4)voltageinputs.

    RS-232bidirectionalopticallyisolatedoutputfortransferringdatatoaPC(bi-directional)orprintingtoadedicatedprinter(DPU414-SEIKO).

    ACLinepowerinput.

    Enterbutton.

    Four(4)buttonsthatenablemovementofthecursor,browsingortheselec-

    tionofdata.

    Buttonsfordirectlyaccessingthe6displaymodesatanytime:

    Transients (set recording or view recorded transient):

    displayswaveformsassociatedwithrapidchangesininput

    Harmonics View:

    displayoftheharmonicsinpercentandvalueratiosforofvoltage,

    currentandpower,foreachharmonicthroughthe50th

    determinationofharmoniccurrentproducedbynon-linearloads

    analysisoftheproblemscausedbyharmonicsaccordingtotheirorder(heatingofneutrals,conductors,motors,etc.)

    Waveforms View:

    displaysvoltageandcurrentwaveformsorvectorrepresentation

    (Phasordiagram)

    identicationofsignaldistortionsignatures

    displayofamplitudeandphaseunbalanceforvoltageandcurrent

    checkingconnectionsforcorrectphaseorder

    Power / Energy (view or start energy monitoring):

    displayofpowerlevelsandtheassociatedparameters

    (powerfactor,displacementandtangent)

    energymonitoring

    fourquadrantmeasurementtodiscernproduced/consumedac-

    tiveenergiesandinductive/capacitivereactiveenergies

    Recording (set recording or view recorded data):

    time-relatedrepresentationasbarchartsorlinegraphs,ofaver-

    agepowerlevelsoroftheaveragevalueofanyparameter

    Linegraphsofeachselectedparameter(upto22)vstime

    linevoltagestabilitycheck

    managementofpowerconsumedandgenerated

    monitoringofharmonicvariations

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    Power Quality Analyzer Model 3945 11

    Alarm Events:

    providesalistofthealarmsrecordedaccordingtothethresholds

    programmedduringconguration

    loggingofinterruptionwithhalf-cycleresolution

    determinationofenergyconsumptionexceedences

    stores value, duration, date, time and set point for up to 4096

    events

    2.3 Display

    300V

    RMS

    0

    -300

    3U

    3V

    3A

    L1

    L2L3

    THD CFmax

    min

    5

    2

    1

    3

    4

    202.5 v 202.0 v 202.7 v1 2 3

    07/25/0249.99Hz 10:26 100%

    Figura 2-2

    Topdisplaybarindicates:

    Symbolofthetestedmode(e.g. , , ,etc)

    Frequencyofmeasuredsignal

    Memorycapacitystatusbar(onlyavailableincertainmodes)

    Currentdateandtime

    Batterychargestatus

    MeasuredRMSvaluesassociatedwithwaveforms.

    Valuesofsignalsataninstantt,attheintersectionofcursorandthewaveforms.Thecursorcanbemovedalongthetimescalebypressingthe buttons.

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    12 Power Quality Analyzer Model 3945

    Measurementselection:

    RMS TrueRMSMeasurement

    THD TotalHarmonicDistortion

    CF CrestFactor

    max/min MaximumandMinimumvalues

    Simultaneousdisplayofthevariousmeasurements

    inalphanumericform

    Phasordiagram

    NOTE: The calculation o the DPF, Tan, KF, , UNB, Min, Max, VAR, Harmonics,

    PST, and DF parameters and the requency measurement can only be perormed

    i voltage with a requency o 41 to 70 Hz is applied to the Ch1 voltage input.

    Selectionofwaveformstobedisplayed(usethe buttonstoselect):

    3Udisplaysthe3phase-to-phasevoltagesU1-2,U2-3,U3-1

    3Vdisplaysthe3phase-to-neutralvoltagesV1N,V2N,V3N

    3Adisplaysthe3phasecurrents

    4Adisplaysthe3phasecurrentsandtheneutralcurrent

    L1, L2orL3displaysthevoltageandcurrent,onphase1,2or3,when

    selected

    Protocol:

    U:Signiesphase-to-phasevoltage

    V:Signiesphase-to-neutralvoltage L1,L2,L3:Refertothephases(A,B,Corother)

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    Power Quality Analyzer Model 3945 13

    2.4 Battery Charge Status

    Battery Charging25%

    Batterycapacitylevelrelativetofullcharge

    %oftotalcapacityalreadycharged(between0and99%) Batterysignand%areblinking

    Battery Full100%

    Batterysignand%arexed

    %oftotalcapacityisat100%

    Battery Discharging25%

    Batterycapacitylevelrelativetofullcharge

    %oftheremainingcapacity

    Batterysignand%arexed

    Battery Empty Discharging0%

    %oftotalcapacityreads0%

    Batterysignand%arexed

    New Battery Charging?

    Fixedbatterycapacitylevel

    Questionmarkshowingunknowncapacitylevel

    Batterysignand%areblinking

    New Battery Discharging?

    Fixedbatterycapacitylevel

    Questionmarkshowingunknowncapacitylevel

    Batterysignand%arexed

    WARNING:The battery may ully discharge when recording or long periods o

    time while not connected to a power supply. The PowerPad will continue to

    record or some time, even i below the minimum battery charge value. However,

    the display may not come back on, and will eventually stop saving data when the

    battery is too low. All data recorded will be saved.

    I in the Record Mode, and the display does not come ON, do not turn the instru-

    ment OFF. Supply power to the PowerPad with the line cord and the display will

    come back ON when any button (other than ON/OFF) is pressed.

    NOTE:Whenthe3945isstoppedusingthe button,aconrmationisrequestediftheequipmentisintheprocessofrecording.

    NOTE:Linecordispluggedin

    NOTE:Linecordmayormaynot

    bepluggedin

    NOTE:Linecordisnotpluggedin

    NOTE:Linecordisnotpluggedin

    NOTE:Linecordispluggedin

    NOTE:Linecordisnotpluggedin

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    14 Power Quality Analyzer Model 3945

    CHAPTER 3

    SPECIFICATIONS

    3.1 Reerence Conditions

    Parameter Reference Conditions

    Ambienttemperature 73F5F(23C3C)

    Humidity 45%

    Atmosphericpressure 25.4"Hgto31.3"Hg(860to1060hPa)Phasevoltage 230Vrmsand110Vrms2%withoutDC

    Clampcurrentcircuitinputvoltage 0.03Vto1VrmswithoutDC(

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    Power Quality Analyzer Model 3945 15

    3.2.2 Current Inputs

    Operating Range: 0to1V

    Input Impedance:100kforcurrentprobecircuitand12.4kforAmpFlexcircuit

    Overload: 1.7V

    3.2.3 Accuracy Specifcations (excluding current probes)

    Function Range Display Resolution Accuracy

    Frequency 40to69Hz 0.01Hz 0.01Hz

    SinglephaseRMSvoltages

    (Vrms,Vdem)15Vto480V 0.1V 0.5%2cts

    Phase-to-phaseRMSvoltages

    (Urms,Udem)15Vto960V 0.1V 0.5%2cts

    DCvoltagecomponent 15Vto680V 0.1V 1%5cts

    Singlephasepeakvoltages

    (Vpp,Vpm)15Vto680V 0.1V 1%5cts

    Phase-to-phasepeakvoltages

    (Upp,Upm)15Vto1360V

    0.1VifI

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    1 Power Quality Analyzer Model 3945

    Function Range Display Resolution Accuracy

    ApparentEnergy(Vah) 0VAhto9999MVAh 4digits 1%1ct

    Unbalance(Vunb,Aunb)

    threephasesupply0%to100% 0.1% 1%1ct

    Phaseangle(V/I;I/I;V/V) -179to+180 1 2

    Harmonicsratios

    F=40to69Hz

    (Vrms>50V)

    (rms>Inom/100)

    0%to999%

    1to50thharmonic0.1% 1%+5cts

    Harmonicsangles

    F=40to69Hz

    (Vrms>50V)

    (rms>Imax/100)

    -179to+180

    1to25

    26to50

    13

    10

    Totalharmonicsdistortion

    (Vthd,Athd,Uthd)

    0%to999%

    50thharmonic0.1% 1%+5cts

    CurrentKfactor(Akf) 1to99.99 0.01 5%1ct

    Voltageicker(Vk) 0.00to9.99 0.01 notspecifed

    Vdem, Adem and Udem = Values measured on half cycle (allow to get a measurement with positive and

    negative values)

    Vpm, Upm and Apm = Peak values min.

    3.2.4 Nominal Range o UseFrequency:40to69Hz

    Harmonics:THD(I):0to40%;THD(U):0to20%Magnetic eld:

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    Power Quality Analyzer Model 3945 1

    3.3 Mechanical Specifcations

    Dimensions: 9.5x7.0x2.0"(240x180x55mm)

    Weight: 4.6lb(2.1kg)

    Shock and Vibration: perEN61010-1

    Tightness: IP50perEN60529 (electrical IP2X for the terminals)

    3.4 Environmental Specifcations

    Altitude: Operating:0to2000meters(6560ft)

    Non-Operating:0to10,000meters(32800ft)

    Temperature and % RH:

    0

    10

    45

    75

    90

    95

    122957968-4 32

    Temperature in F

    Reference Range

    Operating Range

    Storage Range

    Relativehumidityin%R

    H

    3.5 Saety Specifcations

    Electrical Safety

    600VCat.III,PollutionDegree2

    EN61010-31:2002

    EN61010-1:2001

    EN61010-2:1995

    Electromagnetic Compatibility

    Immunity: EN61326-1+A1:1998;IEC61000-4-30:2003

    Emission:EN61326-1+A1:1998

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    1 Power Quality Analyzer Model 3945

    3.6 AC Current Probe Model SR193 (3945 accuracy included)

    Nominal Range:1000AACforf1kHz

    Measurement Range: 3Ato1200AACmax(I>1000Anotcontinuously)

    NOTE: Currents

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    Power Quality Analyzer Model 3945 19

    3.7 AC Current Probe MN93 Probe (3945 accuracy included)

    Nominal Range:200AACforf 1kHz

    Measurement Range: 2Ato240AACmax(I>200Anotpermanent)

    NOTE: Currents

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    20 Power Quality Analyzer Model 3945

    3.8 AC Current Probe MN193 Probe (3945 accuracy included)

    The5ArangeoftheMN193isdesignedtoworkwithsecondarycurrenttransform-

    ers.Bestaccuracyisavailablewhenenteringthetransformerratio(e.g.1000/5A).

    Whenusedtomeasure5Adirect,theresolutionwillbelimitedto0.1Amax.

    Nominal Range:5Aand100AAC

    Measurement Range:

    5A:0.005Ato6AACmax(1Ato1200Awithratio1000/5selected)

    100A:0.1Ato120AACmax

    NOTE: Currents < (Primary x 5) (Secondary x 1000) on the 5A range and

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    Power Quality Analyzer Model 3945 21

    Conditions Range Error

    Ambienttemperature 14to131F(-10to55C)200ppm/Kor

    0.2%per10K

    Relativehumidity 10to35C85%

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    22 Power Quality Analyzer Model 3945

    Factors affecting accuracy (% of the output signal)

    Conditions Range Error

    Temperature -4to140F(-20to60C) 0.2%per10C

    Relativehumidity 10to90%RH 0.5%

    Frequencyresponse 10Hzto20kHz 0.5%

    Positionofconductor

    inclamp

    Anypositiononinternal

    perimeteroftheundeformed

    sensor

    2%

    (4%nearlatchingsystem)

    Adjacentconductor

    carryinganACcurrent

    Conductorincontactwith

    thesensor

    1%

    (2%nearlatchingsystem)

    3.10 AC Current Probe MR193 Probe (3945 accuracy included)

    Nominal Range:1000AAC,1400ADCmax

    Measurement Range: 10Ato1000AAC,10Ato1300APEAKAC+DC

    NOTE: Currents

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    Power Quality Analyzer Model 3945 23

    Factors affecting accuracy (% of the output signal)

    Conditions Range Error

    Temperature64to82F

    (18to28C)

    er:2A/C

    Scale:300ppm/Cor

    0.3%/10C

    Relativehumidity 10to90%RH 0.5%ofReading

    Batteryvoltage 6.5to10V 1A/V

    Positionofa

    20mm20conductor

    DCat440Hz

    DCat1Hz

    DCat2Hz

    DCat5Hz

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    24 Power Quality Analyzer Model 3945

    3.11 Three-phase5AAdapterBox

    This adapter is a three-phase adapter with three 5AAC inputs L1, L2, L3 and three

    AC voltage outputs. All circuits are independent and isolated between input and

    output. The outputs are equipped with connectors to mate with the PowerPad

    Model 3945 current channel inputs. It facilitates automatic sensor recognition and

    probe ratio programming for both 1 Amp and 5 Amp output probes. Additionally, the

    adaptor box can be used directly in series in a 5 Amp circuit.

    WARNING: This adapter is rated EN 61010, 300V, Category III and permits the

    use of standard current probes with either a 1 Amp or 5 Amp output.

    The input connections accept either 4mm male plugs or rigid leads between 1and 2.5mm2 inserted in the side hole after pressing the spring loaded connector

    down to expose the hole.

    3.11.1 ConnectingtoSecondaryCurrentTransformer(CT)

    WARNING: Use caution when connecting to a secondary current transformer

    1. Short the two leads of each secondary current measurement transformer.

    2. Never open a secondary circuit of a CT if its primary circuit is connected to a

    supply voltage. In any case, disconnect the primary measurement transformer

    circuit from the supply network.

    3. Connect each CT secondary to the input of the 5A adapter in the correct order

    (ground on P2) and the right phase order L1, L2, L3.

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    Power Quality Analyzer Model 3945 25

    3.11.2 Specifcations (add PowerPad accuracy 0.5% 1ct)

    Note: Currents < (Primary x 5) (Secondary x 1000) will be displayed as zero on

    the PowerPad with this probe

    Range: 5A

    Output / Input Ratio: 0.2mV/mAAC

    Dimensions: 6.00x3.74x3.38"(153x95x86mm)

    Weight: 1.98lbs(900g)

    Impermeability: IP50perEN60529(electricalIP2Xfortheterminals)

    Electrical safety: DoubleInsulation,CategoryIII,300V

    PollutionDegree2perIEC61010-1

    Operating Temperature: 5to131F(-15to55C),0to90%RH

    Storage Temperature: -40to185F(-40to85C),0to90%RH

    Reference Conditions: 73F(23C)3K,50to85%RH,50/60Hz2Hz

    CurrentmeasurementaccordingtoIEC44-1Class0.5

    Range 5mAto50mA 50mAto1A 1Ato6A

    Error% 0.35%+1.5mA 0.25%+1mA 0.25%+0.5mA

    PhaseError 0.5 0.4 0.33

    Primary Voltage Loss:

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    2 Power Quality Analyzer Model 3945

    CHAPTER 4

    OPERATION

    NOTE: Charge the instrument ully beore use.

    TheinstrumentisturnedONbypressingthegreen button.Thestartupscreen

    appearsandindicatestheinstrumentssoftwareversionandserialnumber.

    IfthereisnoACpowersupply,theinstrumentoperatesonbatteries.Theinstru-

    mentsbatteriesarechargedwhenitisconnectedtoa120/240;60/50Hzline.

    TheinstrumentisturnedOFFbypressingthegreen button.Conrmationwillbeasked,iftheinstrumentisrecordingordetectingtransients.

    NOTE: The current probes connected are identifed at power ON only. Use the

    same probe type or each phase. When changing type o probe, restart the Pow-

    erPad or select the correct probe type using the set up mode.

    4.1 Instrument Confguration (Set-up mode)

    NOTE: AllcongurationsareavailablethroughtheDataViewsoftware.

    NOTE: The instrument must be confgured the frst time it is used and then when-

    ever necessary, should your needs change. The confguration is saved in the

    non-volatile memory when the instrument is turned OFF.

    Whenthe buttonispressed,thefollowingsetupchoicesappear:

    DATE / TIME

    CONTRAST / BRIGHTNESS

    COLORS

    CALCULATION METHOD

    ELECTRICAL HOOKUP

    CURRENT SENSORS

    BAUD RATE

    RECORDINGALARM

    CLEAR MEMORY

    LINE FREQUENCY

    07/25/02 10:26 100%

    Franais English Deutsch Italiano Espaol Portugues

    Figure 4-1

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    Power Quality Analyzer Model 3945 2

    WARNING: When CLEAR MEMORY is selected, all confgurations are

    deleted.

    Choosethelanguagebypressingthefunctionbuttonbelowthedesired

    language.Yourchoicewillremainhighlightedinyellow.

    Selectthecongurationsettingsyouwishtomodify,withthe buttons.

    Asyouscrollthroughthechoices,theywillbehighlighted.

    Presstheenter buttontomodifythehighlightedselection.

    4.1.1 Date / Time

    HighlightDATE/TIMEusingthe buttons,thenpressthe button.

    Selectthenumbertobemodiedwiththe buttons(itwillappearin

    boldtype).

    Modifythevalueofthenumberselectedwiththe buttons.

    Pressthe buttontoapplythenewsettings.

    NOTE: The date and time ormat is indicated at the bottom o the screen.

    Thisformatcanalsobemodied:

    TheDateformatcanbesettoMM/DD/YYYYorDD/MM/YYYY.

    TheTimeformatcanbesettoa12hourclock(AM/PM)ora24hourclock

    (military-12/24)

    4.1.2 Contrast / Brightness

    HighlightCONTRAST/ BRIGHTNESSwiththe buttons,thenpressthe

    button.

    Thesettingisadjustedwiththe buttonsandthecontrastlevelwillbeindi-

    catedonthebargraph.

    Pressthe buttontoapplythenewsettings.

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    2 Power Quality Analyzer Model 3945

    4.1.3 Colors

    HighlightCOLORSwiththe buttons,thenpressthe button.

    Thefollowingscreenwillappear:

    Phase voltage 1 < >

    Phase current 1 < >

    Phase voltage 2 < >

    Phase current 2 < >

    Phase voltage 3 < >

    Phase current 3 < >

    Neutral current < >

    07/25/02 10:26 100%

    Figure 4-2

    Choosethephasewiththe buttonsandthecolorforthatphasewiththe buttons.

    Pressthe buttontoapplythenewsettings.

    4.1.4 Calculation Parameters

    Highlight CALCULATION METHOD with the buttons, then press the

    button.

    SelecteitherWithHarmonicsorWithoutHarmonicswiththe buttons.ThisaffectstheVARcalculation.

    Pressthe buttontoapplythenewsettings.

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    Power Quality Analyzer Model 3945 29

    4.1.5 Electrical Hookup (electrical network)

    Highlight ELECTRICAL HOOKUP with the buttons, then press the

    button.

    Thefollowingscreenwillappear:

    N

    L1

    Single-Phase

    N

    L1

    L2

    Two-Phase

    N

    L1

    L2

    L3

    3 Phase 3-Wire

    N

    L1

    L2

    L3

    3 Phase 4-Wire

    07/ 25/02 10:26 100%

    Figure 4-3

    Choosethehookuptypewiththe and buttons.

    Pressthe buttontoapplythenewhookupselection.

    Hookup Types:

    Single or two-phase:Theneutralcurrentisnotmeasuredorcalculated.

    3 phase-3 wire connection (3V, 3A):

    OnDELTAnetwork:Only power totals are measured.

    Powers per phase are displayed, but not valid.

    OnWYEnetwork: Theneutralcurrentisnotcalculated.Itisnecessary

    toconnectneutral(V)toobtainthepowerperphase.

    3 phase-4 wire connection (4V, 3A): Theneutralcurrentisavailableand

    itsvalueandwaveformaredisplayed.

    OnWYEnetwork: Powersperphaseareavailable.

    NOTE: Neutral current is calculated, not measured, in the 4 wire hookup.

    V1 must be connected in all hookups, since the display is synchronized rom V1and the network requency measured by V1.

    Neutral current is calculated by adding, for each datapoint, each of the 3measured phases of current. This assumes that all current ows through

    neutral. This results in a 256 datapoint waveform. If the 3 phases of currentwere balanced, the calculated neutral current would be 0 for every datapoint.

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    30 Power Quality Analyzer Model 3945

    Synchronization of the Display in Waveform mode:

    Display selection

    (vertical right menu)

    Reference channel

    for synchronization

    3U

    3V

    4A/3AL1L2

    L3

    U1

    V1

    A1V1V2

    V3

    4.1.6 Current Sensors

    HighlightCURRENTSENSORSwiththe buttons,thenpressthe button.

    Thefollowingscreenwillappear:

    MN clamp

    SR clamp

    AmpFlex

    MR clamp

    Adapter

    200A

    1000 / 5A

    0 7/25 /0 2 1 0:26 10 0%

    1

    2

    3

    Figure 4-4

    Currenttransducerratio

    movesthecursorleftorrighttoselectwhichdigitwillbeedited

    increasesordecreasesthevalueatthehighlightedposition

    Secondarycurrentvalue

    Nominalvalueofprimarycurrentfrom5to2999A

    Choosethesensortypewiththe buttons.

    - TheMNClampalsorequiresarangeselectiontomatchyourprobe.The

    rangechoicesare200,100and5Amps.The200AmpRangeisusedfortheMN93Probeandthe100or5AmpRangeisusedfortheMN193

    Probe.

    - ToselecttheproperrangerstensurethattheMNProbechoiceishigh-

    lightedusingthe buttons.

    - Nextpressthe buttontohighlighttherange,thenpresseitherofthe

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    Power Quality Analyzer Model 3945 31

    buttonstoselectthe desiredmeasurementrange of200, 100 or5

    Amps.Ifthe5Amprangeisselected,achoiceforprogrammingtheratio

    isoffered.

    - Tochangetheratio,pressthe buttontohighlightthesecondaryvalue.

    Pressingeitherofthe buttonswilltogglethisvaluetoeither1or5.

    - After making this selection, press the button to adjust the primary

    value.Eachpressofthe buttons will move the highlight one digit

    totheleftorright,accordingly.Usethe buttonstochangeeachdigit

    positionasdesired.Theprimaryrangecanbesetbetween1and2999.

    Press the buttontoapplythecurrentsensorselection.TheConguration

    menuwillonceagainbedisplayedonthescreen.

    NOTE: In addition to the 4 current probe choices, there is an adapter selection.

    This selection allows the operator to use current probes that have a current

    output with PowerPad. The ratio or these probes can be programmed with this

    selection. The primary current can be programmed rom 5 to 2999 Amps. The

    secondary current can be set to 1 or 5 Amps. Adjustment or the ratio is per-

    ormed in the same way as described on the previous page or the MN probe.

    4.1.7 Baud Rate

    HighlightBAUDRATEwiththe buttons,thenpressthe button.

    Choose from the baud rate values: 2400, 4800, 7200, 9600, 19200, 38400,

    57600or115200withthe buttons.

    Press the buttontoapplythecurrentsensorselection.TheCongurationmenuwillonceagainbedisplayedonthescreen.

    NOTE: For transer o data between the PowerPad and PC, the communication

    speeds must be identical on both sides.

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    32 Power Quality Analyzer Model 3945

    4.1.8 Recording

    HighlightRECORDINGwiththe buttons,thenpressthe button.

    Thefollowingscreenwillappear:

    SET-UP

    Hz

    Figure 4-5

    Fourrecordingset-upsareavailable.

    Chooserecordingconguration1,2,3,or4withthe buttons.

    Next,move throughthechoices with the buttonsandselectthedesired

    parameterswiththe buttons.

    Asyoumovethroughtheparameters,eachchoice,inturn,willbehighlighted.

    Toactivatetheselectedparameterforrecording,usethe buttons.

    Theselectedparameterswillhavealledin andthosenotselectedwillhave

    anunlled .

    Thereare two user-denedparametersatthe bottom ofthe window.Atrst,

    theywillbelistedasaquestionmark?.Theseparametersallowyoutomoni-

    torspecic,orarange,ofvoltage,currentorpowerharmonics.

    Toactivatetheseparameters:

    - Usethe buttonstoselecttheparameter.

    - Nextusethe buttonstoscrollthroughtheavailablechoices.

    Theseare:Uh,Vh,Ah,andVAh.

    - Oncethedesiredparameterisselected,usethe tomovetotherst

    modiableeldforthisparameter.Avaluefrom00to50maybeselected

    forthiseldusingthe buttons.

    - Afterselectingthedesiredharmonicorderforthebeginningvalue,press

    the buttontomovetotheuppervalue.Usethesameprocesstoselect

    theupperlimit.

    Iftheseoptionsarenot

    selected,alltheharmonics

    (oddandeven)willbe

    recorded.

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    Power Quality Analyzer Model 3945 33

    - Press the buttonagaintomovetotheright tomodifythelastvalue

    needed to complete the denition. Here you will choose whether to

    includeallharmonicsoronlytheoddharmonics.

    - Usethe buttonstomakethisselection.ThediamondprecedingtheOdd

    Onlychoicewillappearlledin forselectedandunlled fornotselected.

    Example of a user dened choice:Vh0215 OddOnly.

    Inthisuserdenedcondition,alloddvoltageharmonicsbetweenthe2ndandthe

    15thwillberecorded.

    Pressthe buttonwhenyouhavenishedselectingalltheparameterstobe

    recordedtoapplythenewsetup.

    WARNING: The battery may ully discharge when recording or long periods o

    time while not connected to a power supply. The PowerPad will continue to

    record or some time, even i below the minimum battery charge value. However,

    the display may not come back on, and will eventually stop saving data when the

    battery is too low. All data recorded will be saved.

    I in the Record Mode, and the display does not come ON, do not turn the instru-

    ment OFF. Supply power to the PowerPad with the line cord and the display will

    come back ON when any button (other than ON/OFF) is pressed.

    4.1.9 Alarm

    HighlightALARMwiththe buttons,thenpressthe button.

    Thefollowingscreenwillappear:

    07/ 25/02 10:26 100%

    Hysteresis 10 %

    ON

    ON

    ON

    ON

    ON

    ON

    ON

    3L

    3L

    3L

    3L

    3L

    3L

    01 s

    02 s

    01 s

    05 min

    15 min

    01 min

    10 min

    2 1 0 V

    0 0 2 0 A

    0 8.0 %

    1 0.0 %

    1 0 0 0 W

    0.9 2

    0 5.0 %

    >

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    Vrms

    Arms

    Vthd

    Athd

    W

    PF

    Vh 3

    1

    2

    3

    4

    7

    8

    5

    6

    Figure 4-6

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    34 Power Quality Analyzer Model 3945

    A programmed alarm must be set to ON to unction properly (general acti-

    vation or deactivation o alarms is generated in the alarm mode).

    Modiying one or several characteristics o an alarm set to ON, automati-

    cally switches it to OFF.

    HysteresisPercentage(1,2,5or10%).Ahysteresisvalueissettopreventmultiplerecordingsofaneventthatgoesabovethethresholdandacertain

    percentagebelowitattimes.Example:Alarmthresholdis100Voltsorhigher,

    hysteresisis1%.Whenvoltagegoesupto100V,thealarmconditionstarts,

    whenitnextgoesbackdownto99V,thealarmconditionstops.

    Alarmactivation(ONorOFF)

    Alarmnumber(1to10)

    Thereare24parameterstochoosefromforalarmtriggering.Theyare:Vrms,Urms,Arms,Vpst,Vcf,Ucf,Acf,Vumb,Aumb,Hz,Akf,Vthd,Uthd,Athd,W,

    VAR,VA,DPF,PF,Tan,Vh,Uh,AhandVAh.

    Thresholdvaluefortriggeringanalarm

    Minimumdurationfrombeginningthresholddetectiontostorethealarm (from0.01secondsto99minutes)

    Lessthan

    Capture -3L:captureallphases(1,2,or3dependingonhookupselection) -N:neutralcapture

    -:totalpowercapture

    -/3:averagevalueof3-phasecapture(/2for2-phase)

    -0 -50harmonicorderavailableforharmoniceventcapture

    Alarm Programming

    Choose the parameters associated with an alarm from the available parame-

    ters(phasessurvey,thresholdvalueandminimumdurationlteringcanbepro-

    grammed).

    NOTE: The programmed hysteresis is common to all alarms.

    HighlightAlarmwiththe buttons,thenpressthe button.

    Selectthemodiableeldusingthe buttons.

    Activateoradjustthethresholdvaluesusingthe buttons.(Theeldtobe

    modiedisshowninbold.)

    Pressthe buttonwhenyouhavenishedsettingallthealarmparameters.

    NOTE: When the alarm is OFF, the parameters previously used are stored in

    memory and reappear i the alarm is selected again.

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    Power Quality Analyzer Model 3945 35

    4.1.10 Clear Memory

    WhenCLEARMEMORYisselected,thefollowingquestionisdisplayed:

    Are you sure you want to delete all the data?

    Yes No

    Choosetheanswerwiththe buttons.

    Press the button toapplyyour choice.The Conguration menu will onceagainbedisplayedonthescreen.

    When data is deleted, all detected alarms, screen snapshots, captured transient

    states and all recordings are deleted.

    The confguration will return to the deault setting and the instrument will auto-matically turn OFF once the data has been deleted.

    4.1.11 Line Frequency

    Ratedfrequencyofnetwork:50or60Hz

    This parameter determines the correction coefcients used or calculating power

    and energy.

    HighlightLineFrequencywiththe buttons,thenpressthe button.

    Choosethelinefrequencyusingthe buttons.

    Pressthe buttontoapplyyourselection.TheCongurationmenuwillonce

    againbedisplayedonthescreen.

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    3 Power Quality Analyzer Model 3945

    CHAPTER 5

    DISPLAY MODES

    Thescreenpresentationsinthissectiondepictthree-phasesetupsforthepurpose

    ofexplainingthevariouschoices.Youractualscreenswillappeardifferentlybased

    uponyourparticularsetup.

    5.1 Waveorm Mode

    Pressthewaveformdisplaymodebutton-

    5.1.1 RMS Voltage Measurement on a Three-phase System

    300V

    RMS

    0

    -300

    3U

    3V

    3A

    L1

    L2

    L3

    THD CFmax

    min

    4

    1

    2

    3

    202.5 v 202.0 v 202.7 v1 2 3

    07/25/0249.99Hz 10:26 100%

    Figure 5-1

    Valuesmeasuredforeachwaveform,updatedeverysecond,accordingtothemeasurementtype chosen with the variablefunctionbuttons.Value will be

    colormatchedtoitswaveform.

    Instantaneousvalues ofsignalsat timet,attheintersection ofthecursorandthewaveforms.Thecursorismovedalongthetimeaxiswiththe

    buttons.

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    Power Quality Analyzer Model 3945 3

    Themeasurementtypeisselectedusingoneofthesixvariablefunctionbut-tons.Allofthesemeasurementsarevalidin3U,3V,3A,L1,L2andL3.

    Thewaveformsareselectedbypressingthe buttons:- 3Udisplaysthethreephase-phasevoltagesofathree-phasesystem

    - 3Vdisplaysthethreevoltagesofathree-phasesystem- 3Adisplaysthethreephasecurrentsofathreephase-3wiresystem

    NOTE: The neutral current is not a direct measurement, but the resulting total o

    the 3 currents measured.

    - L1, L2 orL3 displaysthecurrentandvoltage,onphaseone,twoorthree,

    respectively.

    IMPORTANT NOTE: Thechoiceofwaveformstobedisplayed,inanydis-

    playmode,dependsonthetypeofconnection(see4.1.5).

    Single-phase:Nochoice(L1) Threephase- 3wire:3U,3V,3A,L1,L2,L3

    Two-phase:2V,2A,L1,L2 Threephase- 4wire:3U,3V,4A,L1,L2,L3

    5.1.2 RMS Voltage Measurement on 3 Phases

    300V

    RMS

    0

    -300

    207.6 v 204.4 v 204.9 v1 2 3

    3U

    3V

    3A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0259.99Hz 10:26 100%

    Figure 5-2

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    3 Power Quality Analyzer Model 3945

    5.1.3 RMS Current Measurement on the 3 Phases and

    Neutral Current on a Three Phase-4 Wire System

    27A

    RMS

    0

    -27

    < t= 5.0ms l1= +26 12= -13 13= -13 IN= +1 >

    19.1 A 18.5 A 17.1 A1.2 AN

    3U

    3V

    4A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0260.00Hz 10:26 100%

    1 2 3

    Figure 5-3

    5.1.4 Total Harmonic Distortion Measurement on One Phase

    290V

    RMS

    0

    -290

    2.1 % 3.5 % 1.9 %

    3U

    3V

    4A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0260.00Hz 10:26 100%

    1 2 3

    Figure 5-4

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    Power Quality Analyzer Model 3945 39

    5.1.5 Minimum and Maximum Current Value Measurements

    MAX

    AVG

    MIN

    PEAK+

    PEAK-

    RMS

    21.7

    6.3

    0.0

    +11.4

    11.0

    18.8

    18.5

    0.0

    +25.8

    25.8

    17.6

    17.1 15.0

    A

    A

    A

    A

    A

    0.0

    +24.0

    24.8

    N

    3U

    3V

    4A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0259.99Hz 10:26 100%

    2

    1

    1 2 3

    Figure 5-5

    CrestFactor-refreshedevery250ms(butcalculatedeverysecond)

    Select3Vor4Awith toobtaintheMIN,AVG,MAX,orPEAKvaluesforcurrent

    orvoltage.SelectL1,L2orL3toobtainthesevaluesforanindividualphase.

    MIN, AVG and MAX values are measured as soon as the power is turned ON.

    Pressing the enter button will reset these values and begin a new update.

    NOTE: The MAX and MIN measurements are calculated every hal period (e.g.

    every 10ms or a 50Hz signal). The AVG measurements are calculated every

    second. However, the MAX, AVG and MIN measurements are rereshed every

    250ms.

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    40 Power Quality Analyzer Model 3945

    5.1.6 Simultaneous Display o the Dierent Current Measurements

    RMS

    DC

    THD

    RMS

    10.4+0.0

    27.7

    18.4+0.0

    3.0

    16.90.3 0.3

    11.6 A

    A

    1.6 %

    1.5 %

    CF

    KF

    1.61

    1.92

    1.40

    1.03

    1.45

    1.00

    DF 25.9 2.9

    N

    3U

    3V

    4A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0259.99Hz 10:26 100%

    1 2 3

    Figure 5-6

    Asseenonthebarontheright,Kfactorisonlyavailableforcurrents4A,3Aor2A,

    dependingonhookupofleads.

    As seen on the bar on the right, ickerisonlyavailableforvoltages3Vor2V,

    dependingonhookupofleads.

    FlickerandKfactorareavailablewheneitherL1, L2orL3isselectedfromthe

    choicesontherightsideofthescreen.

    DCcurrentwillbe displayed,howeverthe valuesareonlyvalidwhena current

    probecapableofmeasuringDC isused.The MR193probe isavailablefor this

    purpose.

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    Power Quality Analyzer Model 3945 41

    5.1.7 Phasor Diagram Display (Fresnal Diagram)

    V1

    V2

    V3

    12

    23

    31

    UNBALANCE

    V3

    V1

    V2

    RMS

    202.8 v

    1.5 %

    198.7 v

    203.2 v

    +122

    +118

    +120

    3U

    3V

    4A

    L1

    L2

    L3

    THD CFmax

    min

    07/25/0259.99Hz 10:26 100%

    4

    1

    2

    3

    Figure 5-7

    Absolutevalueofvoltageorcurrent,dependingondisplayselection.

    12correspondstophaseanglebetweenchannel1andchannel2 23correspondstophaseanglebetweenchannel2andchannel3

    31correspondstophaseanglebetweenchannel3andchannel1

    NOTE: Thisisvalidforcurrents(4Aand3A)andforsinglevoltage(3V).

    Whentheuserchoosestolookataspecicphase(L1,L2orL3)VAisthe

    phaseangleofVinrelationtoA.

    Currentorvoltageunbalancedratio.

    Phasordiagramdisplaysselectionbyvoltage,currentorphase.

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    42 Power Quality Analyzer Model 3945

    5.2 Harmonics Mode

    Presstheharmonicdisplaymodebutton-

    Usethefunctionbuttonstoselectthetypeofharmonicanalysis:

    V- Singlephasevoltageanalysis

    A-Currentanalysis

    VA -Poweranddirectionowanalysis

    U-Phase-to-phasevoltageanalysis

    The and buttons allow the user to zoom in or

    out,inincrementsof2%,5%,10%,20%,50%and100%.

    5.2.1 Single Phase and Phase-to-Phase Voltage Analysis

    07/25/0259.95Hz 10:26 100%

    .+

    3L

    L1

    L2

    L3

    3

    1

    2

    31.5 %Vh 03 1.3 % 0.6 %

    31.4 v 2.7 v 1.2 v

    +003 +113 -094

    1 2 3

    V A VA U

    50

    %

    25

    1 3 5 7 9 11 13 15 17 19 21 23 25

    Figure 5-8

    Valuesmeasuredforeachphase,atcursorposition(intheexampleshownabove,the3rdharmonicisselectedanddisplayed)

    Theinformationdisplayedis:

    - Harmonicorder

    - Percentagerelativetothefundamental

    - RMSvalue

    - Phaseanglein relation to thefundamental, according to themeasure-

    menttypechosen(inthisexampleV)withthevariablefunctionbuttons

    justbelowthescreen.

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    Power Quality Analyzer Model 3945 43

    Cursorenablesselectionupto50thharmonic,withthe buttons.Assoonasthe25thharmonicisreached,the25 thto50thrangeappears(0represents

    theDCcomponent).

    Selectionofexpertmode-.+isavailablefor3-phasehookupsbypressingthe

    buttons(see5.2.4fordescription).

    5.2.2 Single Phase and Phase-to-Phase Current Analysis

    07/25/0260.00Hz 10:26 100%

    .+

    3L

    L1

    L2

    L3

    34.1 %

    36.5 %

    Ah 03 2.8 A

    THD

    -040

    max 34.5%max 1.1%

    V A VA U

    50

    %

    25

    1 3 5 7 9 11 13 15 17 19 21 23 25

    Figure 5-9

    Selectionof3-phaseorindividualphasesL1,L2andL3,displays:

    ThetotalTHD TheMINandMAXinstantaneousvalues

    Theparametersfortheharmonicorderselectedbythecursor:

    - Percentageinrelationtothefundamental

    - RMSvalueandphaseangleinrelationtothefundamentalcomponent

    MIN,MAXinstantaneousvaluesfortheselectedcurrentharmonic

    MIN, MAX values are reset each time the cursor position is changed.

    WVA

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    44 Power Quality Analyzer Model 3945

    5.2.3 Power and Direction Flow Analysis

    07/25/0259.98Hz 10:26 100%

    .+

    3L

    L1

    L2

    L3

    -63 % GVAh03

    min -22 %

    -122

    max -22 %

    V A VA U

    100

    -100

    %

    0

    1 3 5 7 9 11 13 15 17 19 21 23 25

    Figure 5-10

    Harmonicsonthisscreenareshownwitheitherapositiveornegativeorientation.

    Sincethebarselectedinthisexampleisnegative,itindicatesthatitisaharmonicfromloadtosource.

    NOTE: By convention, positive harmonics are rom supply to load, and negative

    harmonics are rom load to supply.

    Thesignsareonlyavailableinharmonicpowermeasurement.

    The example above shows a power harmonic display with the 3rd

    harmonic high-lighted by the cursor. This harmonic is generated by the load.

    WVA

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    Power Quality Analyzer Model 3945 45

    5.2.4 Harmonic Analysis in Expert Mode

    Pressonthe buttontoselect-.+andtheneithertheVorAvariable

    functionbuttonVorA.

    Exampleofatypicaldisplay:

    07/25/02

    02

    05

    08

    11

    14

    1720

    23

    03

    06

    09

    12

    15

    1821

    24

    04

    07

    10

    13

    16

    1922

    25

    59.98Hz 10:26 100%

    .+

    3L

    L1

    L2

    L3

    7.3%

    0

    15.5% 4.8%

    V A

    Figure 5-11

    First column: Theharmonicsinducinganegativesequencearedisplayed.

    Second column: Thoseinducingazerosequence(triplensaddedintotheneu-

    tral)aredisplayed.

    Third column: Thoseinducingapositivesequencearedisplayed.

    Harmoniccontentisusefultoevaluatetheinuenceofharmonicsthatcauseheat -ingoftheneutraloronrotatingmachines.

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    4 Power Quality Analyzer Model 3945

    5.3 Power / Energy Mode

    Pressthepowerdisplaymodebutton-

    Thiswillenable:

    Measurementoftherealpower(generatedandconsumed)

    Measurementofreactivepower(capacitiveorinductive)

    Measurementofapparentpower

    W... -Choiceofpowerparameters

    PF...-Powerfactor

    -Displaysthegeneratedorconsumedenergy

    -Startsenergytotalization

    -Stopsenergytotalization

    -Resetsthecounterstozero

    5.3.1 Starting and Stopping Energy Totalization

    07/25/0260.00Hz 10:49

    07/25/02 10:49:21 07/25/02 10:55:08

    100%

    3L

    L1

    L2

    L3

    +3.2410000203

    0.2410000021

    0000000

    0.1200000011

    0000000

    3.8090000244 3.7960000336 3.4520000306

    +3.7680000334

    +3.4350000304

    kW

    Wh

    kVAR

    vARh

    kVAVAh

    W... PF... G

    1.9970000123

    0000000

    3

    21

    1 2 3

    Figure 5-12

    Startdateandtimeofenergytotalization.

    Stopdateandtimeofenergytotalization.

    Selectionofthethreephases(3L)oroneinparticular(L1,L2,L3)bypressingthe buttons.Selecttodisplaytotalforallphases.

    NOTE: The display is automatically adjusted or a display in W, VA, VAR or kW,

    kVA, kVAR. It is possible to switch to other display modes without stopping the

    totalization.

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    Power Quality Analyzer Model 3945 4

    5.3.2 Button

    Thisfunctionkeyisusedtodisplaygeneratedorconsumedpower,orreal,reactive

    andapparentenergy.

    Thisbuttontogglesthedisplaybetweengeneratedenergy(fromloadtosupply)

    andconsumedenergy(fromsupplytoload)eachtimeitispressed.Whenthe ishighlighted(yellowbackground)thedisplayshowsgeneratedenergy.

    5.3.3 PF... Button

    In3Ldisplaymode,thePF(PowerFactor),DPF(DisplacementPowerFactor

    [fundamentalV,I,phaseshift])orCosine valuesandtheTangent canbedis-

    playedbypressingthePF...button.

    07/25/0250.00Hz 10:59 100%

    3L

    L1

    L2

    L3

    0.634

    0.999 0.999

    -0.439 +0.050 +0.035

    0.998 0.995PF

    DPF

    Tan

    1 2 3

    W... PF...

    0.742

    Power Factor

    DPF or Cosine

    Tangent

    Figure 5-13

    Four Quadrant Power Diagram:

    -W +W

    +Var

    -Var

    Produced Consumed

    12

    43

    Reactive Power - from load

    Reactive Power - from supply

    Figure 5-14

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    4 Power Quality Analyzer Model 3945

    5.4 Transient Mode

    Pressthetransientdisplaymodebutton-

    Transientsaredisplayedintheformofwaveforms.Allchannels(upto6,based

    uponconguration)arestoredinmemoryforeachtransient.Upto50transients

    canbecaptured,whichincludethepre-trippedwaveform,thetrippedwaveformandtwoposttripwaveformsforeachactiveinput.

    Thefunctionbuttonshavethefollowingfunctionsinthismode:

    -Startscapturesearchprogrammingfor

    anewtransient

    -Stopscapturesearch

    -Displaysacapturedtransient

    -Deletesacapturedtransient

    07/ 25/02 10:54 100%

    SEARCH FOR NEW TRANSIENTS

    SLOTS AVAILABLE

    START : 07/25/02 10:55

    50

    : 07/25/02 10:55

    : 1 %

    : 1 %

    : 1

    : T E S T

    END

    V threshold

    A threshold

    Number

    NAME

    1

    2

    3

    Figure 5-15

    Transientrecordingstartandendtime.

    Triggerthreshold:selectionof1%,2%,5%,10%,20%,50%,100%offullscaleforvoltageandcurrentareavailable.

    - Pressthe buttonstoselecteitherVorA,thenusethe but-

    tonstomodifythetriggerthreshold.

    Chooseanameforthesessionandthenumberoftransientstobecapturedwiththearrowbuttons:

    - :Selectionofthecharacterplace(7charactersmax)

    - :Selectionofthealphanumericvalue

    - :PresstheEnterbuttontoapplytheconditionsandtoactivate

    transientcapture

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    Power Quality Analyzer Model 3945 49

    Thetablebelowliststhecapturethresholdlevels,basedontheprobeinuse(for

    thecurrentchannels)andvoltageatthedifferentpercentselections.

    Thresholds

    100% 50% 20% 10% 5% 2% 1%

    MN93 200A 100A 40A 20A 10A 4A 2A

    MN193 (100A) 100A 50A 20A 10A 5A 2A 1A

    MN193 (5A) [(primaryx5)(secondary)]x(percentx100)

    SR193 1000A 500A 200A 100A 50A 20A 10A

    AmpFlex 193 2900A 1400A 580A 290A 140A 58A 29A

    MR193 1000A 500A 200A 100A 50A 20A 10A

    2999A ratio adapter 3000A 1500A 600A 300A 150A 60A 30A

    1A ratio adapter 1A 0.5A 0.2A 0.1A 0.05A 0.02A 0.01A

    Voltage 480V 240V 96V 48V 24V 9.6V 4.8V

    Transientsaredetectedbycomparingall256samplesonthecurrentcyclewith

    theircounterpartsfromthepreviouscycleforeachactiveinputchannel.Should

    anyonesampledeviatefromitscounterpartbytheselectedpercentagevaluein

    thesetup,thiswillbeconsideredatransientandthedatawillbecaptured.

    Whencaptureoccurs,fourcyclesarerecordedforeachinput.Theseincludethe

    triggercycle,thepreviouscycletothetriggerandthetwocyclesthatfollowthe

    triggeredcycle.Allactiveinputswillbecaptured.

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    5.4.1 Opening Previously Stored Transients

    Thescreenbelowcanbeaccessedwiththeretrieve button.Itdisplaysalist

    transientspreviouslystoredinthememory.

    07/25/ 02 10:56 100%

    SELECTION OF TRANSIENT

    TEST 05

    TEST 04

    TEST 03

    TEST 02

    TEST 01

    05/07/02 14:31:41

    05/07/02 14:31:41

    05/07/02 14:31:21

    05/07/02 14:31:04

    05/07/02 14:31:04

    1

    2 3

    Figure 5-16

    NOTE: I the @ symbol appears as the frst letter o the recording name (e.g. @EST

    05), the data may be corrupted and should be checked careully.

    Thestatusbaratthetopdisplaysthememorylledbystoredtransients.

    Nameandtransientnumber(from01to50)foreachstoredtransient.

    Transientrecordingtimeanddatearedisplayedforeachtransient.

    - To select a transient, pressthe buttons, then select it with the button

    - Todeleteaselectedtransient,pressthe button,thenconrmitwith

    the button

    5.4.2 Storing the Trigger

    ThethresholdTinpercent,denedasanenvelopewidth(overandunder)thelast

    cycleofsignalVorAinputsignal.ItswidthWiscalculatedwiththenominalmea-

    surementrangeRforachannel(dependingontheselectedcurrentsensor).

    W=TxR

    Example: Using the SR193 probe and a 2% trigger level, the width would be 1000A x 2%

    = 20A. Thereore, a deviation o 20A will cause a transient event to be captured.

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    Power Quality Analyzer Model 3945 51

    ThedisplaybelowshowsthetransientselectedinFig.5-16onthepreviouspage.

    07/25/02 11:22

    07/25/02 11:24:21

    100%

    1

    2

    3

    30A

    0

    -30A

    3V

    4A

    L1

    L2

    L3

    Figure 5-17

    Thescreendisplays4cyclesof256points/cycle,with1cyclebeforethetrigger

    and3cyclesafter.

    Thewaveformstobedisplayedareselectedbypressingonthe buttons.

    - 3Vdisplaysthethreephasevoltagesduringthetransient

    - 4Adisplaysthethreephasecurrentsandtheneutralcurrentduringthe

    transient- L1, L2orL3displaysthecurrentandvoltageonphase1,2or3

    Instantvaluesataninstantt,inrelationtothecursor,canbedisplayedonthetimescalewiththe buttons.

    :Returnstothetransientselectionscreen

    and :Changesthetimescale(screendisplayof4,2or1periods)

    centeredonthecursor,whichcanbemovedwiththe buttons.

    NOTE: All transients captured and stored can be downloaded to a PC with the

    DataView sotware (see Chapter 6).

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    52 Power Quality Analyzer Model 3945

    5.5 Alarm Mode

    Pressthealarmdisplaymodebutton-

    Figure5-18presentsthevariousalarmsstored.

    NOTE: Thethresholdvaluesmustrsthavebeenprogrammedinthe mode.

    Also, the alarm event, or alarm capture, must end before an alarm will be dis-

    played.

    -Startsalarmcapture

    -Stopsalarmcapture

    -Deletesallstoredalarms

    0 7/ 25 /0 2 11 :2 7 10 0%

    3L

    L1

    L2

    L3

    1

    2 4

    3 5

    < 07/25/02 11:27 L1

    L1

    L1

    L1

    L1

    L2

    L1

    L2

    L3

    L1

    L1

    Vthd

    Vrms

    Vthd

    Vthd

    Arms

    Arms

    Arms

    Arms

    Arms

    Vrms

    Vthd

    23.1%

    0V

    34.3%

    35.0%

    1A

    1A

    0A

    0A

    0A

    109V

    35.1%

    2s

    1s24

    1s

    s

    1s

    1s5

    1s3

    1s9

    1s9

    1s8

    3s37

    3s

    2/2

    11:28

    11:29

    1

    100

    s1

    100

    s1

    100

    s1

    100

    s1

    100

    s1

    100

    s1

    100

    Figure 5-18

    Alarmmemorystatusbar(indicatesavailablealarmstoragememory)

    Alarmtarget

    Measurementparametermonitored Maximumorminimumamplitudedetected

    Alarmduration

    Usethe buttonstoselectanalarm.

    Usethe buttonstodisplayalarmswithinaperiodoftime.

    NOTE: AllthealarmsrecordedcanbedownloadedtoaPCwiththeDataView

    software(seeChapter6).Upto4096alarmscanbecaptured.

    The Alarm values for PF, DPF, Tan, , W and VAR are absolute values.

    NOTE: Thetypeofconnectionselectedinthe modehasnoinuenceonthepossibilitiesofchoices,targetandmonitoredparameter.Theuserisresponsible

    formakingpertinentchoices.

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    Power Quality Analyzer Model 3945 53

    5.6 Recording Mode

    NOTE:Ater a recording is set, the instrument will go into sleep mode (no display)

    to save the batteries. The recording will start as programmed. Press any button

    other than the ON/OFF button to turn ON the display again. Turning o the Pow-erPad clears the schedule, even i turned on again, the recording will not start.

    Thismodeenablesalltheparameterspreviouslyconguredinthesetup mode

    toberecorded(see4.1.8).Presstherecorddisplaymodebutton-

    Thevariablefunctionbuttonshavethefollowingfunctionsinthismode:

    -Createsanewrecording

    -Opensapreviousrecording

    -Deletesrecording

    5.6.1 Saving the Selected Parameters

    07 /2 5/ 02 1 0: 56 10 0%

    NEW RECORDING

    CONFIGURATION : CONFIG 1

    START : 07/25/02 10:56

    END : 07/25/02 10:57

    PERIOD : 1 min

    NAME : T E S T

    Recording

    2

    1

    Figure 5-19

    Recordingstatusbar(displaysremainingmemorycapacity).

    Parameters-pressthe buttonstoselecttheparametersandthe but-tonstomodifythem.Anunderlinewillappearundertheselectedparameter.

    - Selectthecongurationnumbertobemodiedwiththe buttons.

    (CONFIG1,2,3or4)

    - Selectthedateswiththe buttons.

    NOTE:Thedatesareadjustedaccordingtothechosenrecordinginte-

    grationperiod.PERIODdoesnotrefertoasamplingperiod,butrather,

    toanintegrationperiod(average).

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    54 Power Quality Analyzer Model 3945

    - Selectarecordingstoragerateusingthe buttons.

    NOTE: Thepossiblestorageratesare1,5or20sec;1,2,5,10or

    15min.

    - Enter the record name with the buttons, which scroll through the

    alphabetandnumbers.Upto7charactersmaybeentered.- Savethechangeswiththe button.

    NOTE:The3945willcalculatethestorageneedsoftherecording,

    andifnecessary,willdisplaythemessageNotenoughmemory.

    Iftherecordingisscheduled,thePowerPadwilldisplayRecordingonStandby.

    Ifitdoesntacceptanyoftheparameters,itwillinsteadmovethecursortotheeld

    itdoesntaccept.Afterchangingtheparameter,pressenteragain.

    Parameters not accepted could include the start time being beforethe presenttime.Iftheperiod(storagerate)ismorethan1minute,thestarttimemustbea

    multipleofthestoragerate(e.g.ifthereisa10minutestoragerate,therecording

    starttimecouldnotbe4:09,butshouldinsteadbe4:00or4:10).Thedurationmust

    alsobeamultipleofthestoragerate.

    Thesetupcongnumbermusthaveatleast1parameterselectedtorecord.The

    recordingnamecannotbeblank.Theremustbeenoughmemory.

    TIP: It may be wise to do a very short sample program

    to be sure everything is set correctly. For example,

    choose a 10 minute recording session called test 1

    and evaluate results.

    TIP: Make sure to leave the PowerPad on until the

    recording is completed and check that there is AC

    power or enough time left on the battery.

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    Power Quality Analyzer Model 3945 55

    5.6.2 Selecting or Deleting a Record

    0 7/ 25 /0 2 1 0: 56 10 0%

    SELECTION OF RECORDING

    TEST 07/25/02 17:58 > In progress

    PUMP 07/18/02 17:58 > 07/18/02 11:45

    MOTORA 07/12/02 14:41 > 07/12/02 16:40

    Figure 5-20

    NOTE: I the @ symbol appears as the frst letter o the recording name (e.g. @

    EST), the data may be corrupted and should be checked careully.

    Thestatusbaratthetopdisplaysthememoryoccupiedbypreviousrecords.

    To Select a Recording: Press the buttons toselectthe recording.The currentselectionwill

    appearinboldtype.Pressthe buttontoaccepttheselection.

    To Delete a Recording:

    Selecttherecordtobedeletedwiththe buttons,presson button

    andthenpressthe buttontodeletetheselection.

    TIP: It is possible to display a measurement being recordedby selecting the name of the recording. To refresh the screen,

    press the mode buttons (caution: loss of cursor position and

    zoom capability will occur).

    The instrument automatically makes a correction if the programmed dates and

    timesdonotmatchthecurrentdate,thecurrenttimeorthesetstoragerate.

    Itisrecommendedtosetmultipletimes:

    -of2for2min-of5for5min

    NOTE: The instrument automatically corrects the start and end time in order toimprove the readability o the time scales o the recording mode (graph repre-sentation).

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    5 Power Quality Analyzer Model 3945

    5.6.3 Selecting a Graphic Display or Recorded Measurements

    Recordeddatacanbedisplayedingraphicform.

    Select the recording to be displayed using the buttons. Then, open the

    recordingbypressingthebutton.Ascreensimilartogure5-21willappear.

    07 /2 5/02 10 :56 10 0%

    RECORDING

    F Urms Uthd Ucf Vrms .. / ..

    SELECTION OF MEASUREMENT TO VIEW

    START : 07/25/02 17:58

    END :07/25/02

    18:27

    PERIOD : 1 mn

    (1%)TEST

    Figure 5-21

    Use the function buttons to enable direct selection of the measurement to be

    displayed.

    Pressingthe../..keyenablestheusertoscrollthroughallthemeasurements

    selectedwhentherecordwasprogrammed.

    Example when Vrms is Selected

    220.0V

    210.0V

    200.0Vmn>

    Vrms

    10 15 20 25 30

    203.4 v204.7 v 204.0 v

    3L

    L1

    L2

    L3

    07/25/ 02 10:38 100%

    07/25/02 10:13:21

    1 2 3

    2

    1

    3

    Figure 5-22

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    Power Quality Analyzer Model 3945 5

    Displayoftheaveragevoltageforeachofthe3voltages.Movingthecursorwiththe buttonsupdatesthevaluestoreectthenewcursorposition.

    Selectionofthe3phasesoreachphaseseparatelywiththe buttons.

    Returnstothescreenwherethemeasurementtobedisplayedisselected.

    Example when L1 is Selected

    220.0V

    210.0V

    200.0V

    mn>

    Vrms

    10 15 20 25 30

    204.5 204.9204.7 v

    3L

    L1

    L2

    L3

    0 7/25/02 10:38 100%

    07/25/02 10:13:21

    2

    4

    1

    5

    3

    Figure 5-23

    MIN,AVGandMAXvaluesoverthedisplayperiod

    MAXvalue

    AVGvalue MINvalue

    ReturnstotheMeasurementSelectionScreen(seeFig.5-21)

    When the display period is different from the averaging integration period:

    The average value is calculated with the sum o each integration period

    stored.

    The extreme values are the minimum and the maximum o an integration period

    during the display period selected with the cursor.

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    5 Power Quality Analyzer Model 3945

    Graphic Display of Average Power

    AfterreturningtotheMeasurementSelectionScreen(seeFig.5-21)usethe../..

    buttontoviewmorerecordedparameters,ifnecessary.PressingtheWbutton,

    willbringupascreensimilartoFig.5-24below.

    +4000

    +3900

    +3800mn> 10 15 20 25 30

    +3.881 kW

    L1

    L2

    L3

    07/25/02 10:38 100%

    07/25/02 10:13:21

    Figure 5-24

    Intheexampleabove,thedisplayshowstheaveragevalueoftherealpoweron

    thephaseL1.Thevalueisupdatedasthecursorismovedwith buttons.

    NOTE: Hold the cursor button down to switch to ast orward.

    Energy Measurement for a Determined Period

    +4000

    +3900

    +3800mn> 10 15 20 25 30

    +755.2 Wh

    L1

    L2

    L3

    0 7/25/02 1 0:39 10 0%

    07/25/02 10:25:21

    Figure 5-25

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    Power Quality Analyzer Model 3945 59

    Theenergyoveraselectedperiodcanbecalculatedfromtheaveragepowerrecords:

    Movethecursortothestarttime.

    Pressthe functionbutton.

    Movethecursorwith buttonstothedesiredendtime.

    Theenergyvalueisdisplayed,withend date and end time.

    Itispossibletomakeanenergymeasurementoverseveralrecordingrangesin

    the4quadrants.

    NOTE: All o the data in a recording session can be downloaded to a com-

    puter using the DataView sotware.

    The and buttonsallowtheintegrationperiodofthedisplayedmeasure-

    mentandthegraphtime-scaletobechanged.

    Display Averaging Period Graph Scale

    2hours over5days

    1hour over21/2days

    15minutes over15hours

    10minutes over10hours

    5minutes over5hours1minute over1hour

    20seconds over20minutes

    5seconds over5minutes

    1second over1minute

    NOTE: The minimum integration period is limited by the recording period. The

    recordingintegrationperiodof2minutesisaspecialcase.Inthiscase,onlythefol-

    lowingdisplayintegrationperiodsarepossible:10minutes,1hourand2hours.

    5.7 Saving a Display

    Thisbuttonallows12snapshotstobesavedforfuturerecallandevaluation.

    Pressthe button(forabout3s)tocapturethecurrentdisplay.

    The iconisdisplayedinthetopleftcornerassoonastheoperation

    issuccessful. Thisiconisreplacedby ifthereisnospaceleftinthememoryto

    recordthedisplay.

    NOTE: These screens can be downloaded to a computer using the Data-

    View sotware.

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    5.8 Opening a Previously Saved Snapshot

    Ashort press(about1s)onthe buttongivesaccesstothemenuofsnapshots

    thathavebeensaved.

    Thesmallicontotheleftofeachsnapshot(dateandtime)tellsyouwhattypeof

    datawasstored.

    0 7/25 /0 2 10 :26 100%

    07/17/02 11:27

    07/17/02 11:28

    07/17/02 12:57

    07/17/02 12:08

    07/17/02 12:20

    07/17/02 12:30

    07/17/02 12:48

    Figure 5-26

    Usethe buttonstoselectthesnapshot.

    Todisplaythesnapshot,pressthe button,thentheenter button.

    Afterreviewingthesnapshot,presstheenter buttonagaintoreturntothelist

    ofsavedsnapshots.

    Todeleteaselectedsnapshot,pressthe button,thenpresstheenter

    button.

    NOTE: The various storage spaces o the Model 3945 are o a fxed size and

    are completely independent. There are our memory spaces available (alarms,

    snapshot, transients and recordings).

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    Power Quality Analyzer Model 3945 1

    5.9 Printing

    Theprintbuttonallowsascreentobeprinteddirectlytoadedicatedprintercon-

    nectedtotheserialport.

    300V

    RMS

    0

    -300

    3U

    3V

    3A

    L1

    L2

    L3

    THD CFmax

    min

    202.5 v 202.0 v 202.7 v

    07/25/0259.99Hz 10:26 100%

    1 2 3

    Figure 5-27

    Whenthe buttonispressed,thescreenfreezesandthetopleftmodeiconis

    replacedbythe icon(asshowninFigure5-27above).

    NOTE: Itwilltakeafewsecondsfortheicontoappear.Printtransmissionspeed

    is19.2kb.

    To stop the printing in progress (e.g. in the event o an error), press the print

    button once again.

    The recommended printer for the Model 3945 is the SEIKO Model

    DPU414-30B (Cat. #2140.21). This printer is shipped with set-up

    instructions for use with the Model 3945 PowerPad.

    5.10 Help

    Pressthisbuttontoobtainhelpforthecurrentdisplaymode.

    ToexittheHelpmode,pressthe buttononceagain.

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    2 Power Quality Analyzer Model 3945

    CHAPTER 6

    DATAVIEW

    SOFTWARE

    6.1 Introduction

    TheDataViewgraphingandanalysisprogramisafullfunctionWindows based

    applicationsoftwarepackage.

    Itprovidestheabilitytocongureandrunanytestorrecordingfromthecomputerasyoucanfromtheinstrumentitself.

    Additionally,itenhancestheinformationcapturedforsnapshotsasitcapturesall

    theinformationtodisplayandreportwaveforms,andharmonicspectrumsofthe

    datainrealtime.

    DataView includes several pre-dened templates for displaying and printingreports,aswellastheabilitytototallycustomizethereportstomeetyourexact

    needs.

    Thischapterwillgiveyoutheinformationyouneedtoknowtousethisprogram.

    MoreextensiveinformationonspecicfunctionsavailableinDataViewisavail-

    ableintheonlinehelpsystemincludedwiththesoftware.

    The DataViewsoftware supplied with the Model 3945 PowerPad,

    provides four main functions:

    1. TheabilitytocongurethePowerPadfromthecomputer.

    2. Theabilitytoinitiatearecordingtestfromthecomputer.

    3. Theabilitytostoretestresultsandprintoutreports

    ofanytest.

    4. Theabilitytoviewandstorereal-timedata.

    DataView software is a copyright of Chauvin Arnoux, Inc. d.b.a. AEMC Instruments

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    Power Quality Analyzer Model 3945 3

    6.2 Features

    TheDataViewsoftwarehasasimple,easy-to-useinterfaceforconguringand

    running tests with the Model 3945 Power QualityAnalyzer, as well as printing

    reportsofthetestresults.Therearemanyfeaturesthatareavailablethroughthis

    program.Afewofthemostpopulararelistedbelow.

    Key Features:

    ConguresanddisplaysallfunctionsoftheModel3945

    Runstestsfromyourcomputerwithasimpleclickandexecuteprocess

    Viewsandcapturesdatainrealtime

    Retrievesdatafromtheinstrumentsmemory

    Plotsgraphsofrecordedinformationthathasbeendownloaded

    Presentsreports,includingyouranalysisinthecommentssection

    Storesalibraryofsetupsfordifferentapplications

    Providesconsistencyintesting,regardlessofwhoperformsthetest

    NOTE: For help on sotware instructions, use DataViews Help Menu, which is

    located on the menu bar.

    6.3 Dataview Sotware Installation

    NOTE:WheninstallingDataViewonaWindows2000orXPsystemthe

    usermusthaveAdministrativeaccessrightsduringtheinstallation.

    Theusersaccessrightscanbechangedaftertheinstallationiscomplete.The user does not need administrative access rights when using Data-

    View.

    DataView must be reinstalled for each user in a multi-user system (e.g.

    Windows2000andXP).

    Minimum Computer Requirements:

    Windows98SE/2000/ME/XP

    128MB(256MB-WindowsXP)ofRAM(256MBormorerecommended)

    35MBofharddiskspace(200MBrecommended)

    CD-ROMdrive

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    4 Power Quality Analyzer Model 3945

    1. InserttheDataViewCDintoyourCD-ROMdrive.

    Ifauto-runisenabled,theSetupprogramwillstartautomatically.Ifauto-run

    isnotenabled,selectRunfromtheStartmenuandtypeinD:\SETUP(ifyour

    CD-ROMdriveisdriveD.Ifthisisnotthecase,substitutetheappropriate

    driveletter).

    2. ASet-up window,similartotheonebelow,willappear.

    Figure 6-1

    There are several different options to choose from.Some options(*) require an

    internetconnection.

    DataView, Version 2.xx.xxxx-InstallsDataViewontothecomputer.

    *Adobe Reader-LinkstotheAdobewebsitetodownloadthemostrecent

    versionofAdobeReadertothecomputer.AdobeReader is required for view-

    ing PDF documents supplied with DataView that are accessible from the Help

    menu.

    MetaViewer-TheMetaViewerutilityprogramallowsausertoviewandprint

    .dmfor.emflesgeneratedbyDataViewwithouthavingDataViewsoftware

    installed.

    *Software Updates-LinkstotheAEMCSoftwareUpdatewebsitetocheckfor

    newsoftwareversionreleases.

    *Firmware Upgrades - Links to theAEMC Firmware Upgrade web site tocheckfornewrmwareversionreleases.

    Documents-Showsalistofinstrumentrelateddocumentsthatyoucanview.

    Adobe Reader is required for viewing PDF documents supplied with Data-

    View.

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    Power Quality Analyzer Model 3945 5

    3.SelecttheDataView, Version 2.xx.xxxxoptionfromthelist,thenclickonIn-

    stall.

    4. TheInstallation Wizardwindowwillappear.ClickNext.

    Figure 6-2

    5. IntheCustomer Informationwindow,enteraNameandCompany,then

    clickNext.

    Figure 6-3

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    Power Quality Analyzer Model 3945

    6. In the Setup Type window that appears next, select the Complete radio

    buttonoption,thenclickNext.

    Figure 6-4

    7. The Select Features window appears allowingfeaturesfor all instruments

    compatiblewithDataView

    tobeselectedornotselectedtoinstall. Selectonlytheinstrument(s)thatyouwanttouse.Youcanupdatethesoft-

    wareforotherinstrumentslater,ifnecessary.

    Figure 6-5

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    Power Quality Analyzer Model 3945

    8. IntheReady to Install the Programwindow,clickonInstall.

    Figure 6-6

    9. Readthenextdialogbox,thenclickOK.

    Figure 6-7

    10. Iftheinstrumentselectedforinstallation(seeFigure6-5)requirestheuseofa

    USBport,the Install Driverdialogboxwillappear.ClickonInstall.

    Figure 6-8

    11. TheInstallation was Successfuldialogboxwillappear.ClickonOK.

    12. Next,theInstallation Wizard Completewindowwillappear.Clickon

    Finish.

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