Measure your Return On Irradiance - Transcat
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Expert Tools. Better Solar. www.solmetric.com PVA-1000S 1000V I-V Curve Tracer SolSensor ™ Wireless PV Reference Sensor Save time, reduce risk, and maximize ROI during: n Commissioning n O&M n Auditing n Troubleshooting Industry Leading Features n Highest measurement throughput even in hot environments n Best I-V accuracy & resolution n Best irradiance & temperature accuracy n Most reliable Go/NoGo testing n 300 ft wireless range n Largest user interface and clear visualization of performance issues. Measure your Return On Irradiance ™ Solmetric PV Analyzer 3.0 – Water pumping station project File Properties View Utility Help Irradiance Ready Recall… Reassign Measure Now 875 W/m 2 T backside 47.1°C Tilt 20.1° Table History Meg Test Traces 9/14/2013 10:08 - Inverter4-Combiner2-String8 PF: 99.7% FF: 0.75 20.1° 855.4 W/m 2 (cell) 46.3°C 8.0 6.0 4.0 2.0 0.0 0 200 400 600 800 1000 Current (A) Voltage (V)
Transcript of Measure your Return On Irradiance - Transcat
Expert Tools. Better Solar.www.solmetric.com
PVA-1000S1000V I-V Curve TracerSolSensor™
Wireless PV Reference Sensor
Save time, reduce risk, and maximize ROI during:
n Commissioningn O&Mn Auditingn Troubleshooting
Industry Leading Featuresn Highestmeasurementthroughputeveninhotenvironments
n BestI-Vaccuracy&resolutionn Bestirradiance&temperatureaccuracy
n MostreliableGo/NoGotestingn 300ftwirelessrangen Largestuserinterfaceandclearvisualizationofperformanceissues.
Measure yourReturn On Irradiance™
Solmetric PV Analyzer 3.0 – Water pumping station projectFile Properties View Utility Help
Irradiance
Ready
Recall…
Reassign
MeasureNow
875 W/m2
T backside
47.1°C
Tilt
20.1°
Tabl
eH
isto
ryM
eg T
est
Trac
es 9/14/2013 10:08 - Inverter4-Combiner2-String8
PF: 99.7% FF: 0.75 20.1°855.4 W/m2 (cell) 46.3°C
8.0
6.0
4.0
2.0
0.00 200 400 600 800 1000
Curr
ent
(A)
Voltage (V)
PV Array Commissioning | O&M | Auditing | Troubleshooting
Windows™ PC provided by user
PV Array Commissioning | O&M | Auditing | TroubleshootingI-V Curve MeasurementTheI-VcurvemeasurementprovidesIsc,Voc,Imp,Vmp,Pmax,FillFactor,andPerformanceFactor—theratioofmeasuredtoexpected
maximumpower.Themeasure-mentistypicallyperformedatacombinerbox,usingthefusestoselectthestringundertest.
I-V Curve Accuracy and DetailThedesignofthePVAisoptimizedtoaccuratelymeasurebothstandardandhighefficiencymodules,andthenumberofI-Vcurvepointscanbesetto500fordemandingapplications.
High Throughput in Hot ConditionsAllI-Vcurvetracersabsorbenergywitheachmeasurement.ThePVA’shighthermalcapacityallowsittocommission1MWinlessthan2hourswithoutoverheating,eveninenvironmentsexceeding43Cambient.
Time-Saving User InterfaceWithatabletPCasyouruserinterfaceyoucanperformmoretestsperhouranddisplaythedatainmultipleeasytoreadformats.Saveyourmeasurementsbysimplytouchingthearraytree.ThePCinterfacealsoallowsfutureadditionofdataanalysistoolsfortheO&Mapplication.
Data Analysis and ReportingTheI-VDataAnalysisTool,providedwiththePVA,automatestheprocessofpreparingdetailed,professionalreportsofyourmeasurementresults.Thetoolgeneratesatableofthekeyperformanceparametervaluesforeachstring,groupI-Vgraphsforeachcombinerbox,andhistogramsshowinghowthedataforeachparameterisdistributed.
SolSensor™
Wireless PV Reference Sensor
SolSensorprovidesirradiance,temperature,andmoduletiltdatatothePVmodel.ThemodelusesthisinformationtopredicttheI-Vcurveshapeatoperatingconditions,andtotranslatethemeasuredcurvetoSTC.SolSensorclampstothemoduleframe,automaticallyorientingtheirradiancesensorintheplaneofthearray.
Irradiance AccuracyThespectralresponseofSolSensor’ssiliconphotodiodesensoriscorrectedforthePVtechnologyundertest.Specialfactorsareprovidedformulti-andmono-crystallinecellsaswellasCdTeandotherthinfilmtechnologies.Thesensoristemperaturecompensatedandtheangularresponseofeachunitiscalibratedforrotationandelevation.
Asaresultofthesefeatures,SolSensormakesaccurateirradiancemeasurementsoverabroadrangeoftechnologies,skyconditions,andsunangles,allowinguseoftheequipmentearlierandlaterintheday.
Temperature AccuracySolSensorprovidestwoexternalthermocoupleinputsformeasuringmodulebacksideorambienttemperatures.CelltemperaturecanalsobecalculateddirectlyfromthemeasuredI-VcurveusingmethodsdescribedinIEC60904-5.
ThePVA’sSmartTempfeatureblendsthesetwomethodsforbestadvantage.TemperatureiscalculatedfromthemeasuredI-Vcurveathighirradiance,takenfromthethermocoupleatlowirradiance,andderivedfromablendofthetwoatintermediateirradiancevalues.
Wireless RangeSolSensor’srangetoyourPCis100m,allowingyoutotestmoreofyourarraywitheachredeploymentofthesensors.WhenthedistancefromyourPCtoSolSensorincreasesbeyondthedirectwirelessrange,thePVA’smesh-typewirelessnetworktransparentlyswitchestousethecurvetracerasahighpowerrelaystation.
tension (Volts)
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ant (
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Setup1.Deploysensors2.OpenDCdisconnect
3.Liftstringfuses4.Cliptestleadstobussbars
Measurement5.Insertafuse6.MeasureI-Vcurve7.Saveresult8.Repeatfornextstring…
PVA-1000S Includes:• I-VMeasurementUnitwithshoulderstrap
•PVASoftwareforWindows™•WirelessUSBInterfaceforWindows™laptoportablet
•Connectorsavers,MC-4toMC-3adaptors,MC-4connectortool
•Batterycharger(ACadapter)•ShortUSBextensioncable
SolSensor Includes: •Sensorunit•ModuleFrameClamp•RuggedizedK-typethermocouples(2)
•Thermocoupleattachmentadhesivediscs(50)
•SolSensortoollanyard• Irradiancesensorcleaningsupplies
•Shoulderbag
General InformationCharacteristic Description
High-efficiency PV modules
Engineeredtoaccuratelymeasurehigh-efficiencyaswellasstandardPVmodulesandstrings.
PC user interface Innovativetouch-screeninterfacewithbright,colorfulgraphicsandtouchscreencontrolsforoperatorefficiency,ease-of-use,andin-fieldanalysis.Runsonuser’sstandardWindowslaptoportablet.
Wireless interfaces Longrange802.15.4meshnetworkensuresreliableconnection.Nowiresunderfoot.Speedssetupandprovidesflexibilityintroubleshootingstrings.
Advanced PV models AccuratelypredictsperformanceatbothSTCandcurrentconditions.Checksyourresultsimmediately.
MPPT range indicator On-screenindicatorhelpsyouidentifypoorlysizedstrings.
Equipment databases Modelsfor12,000+PVmodules.Automaticupdates.
PVA-1000S I-V Curve Tracer Specifications
Parameter Value
PV voltage range 0–1000V
Current range 0-20A(30Aoptionalsoavailable)
Voltage accuracy 0to55°C ±0.5%±0.25V
Current accuracy 0to55°C ±0.5%±0.04A
Voltage resolution 25mV
Current resolution 2mA
Measurement duration 4s(typical,from‘MeasureNow’toreturnedI-Vtrace)
I-V sweep duration 0.05-2s.Typically0.2sforPI/strings.
I-V trace points 100or500,userselectable
Operating temp range -10to+65°C
Battery life 12hrcontinuousoperation,morethan1000I-Vcurves.
Protection features Over-voltage,-current,-temperature,andreversepolarity
Safety CATIII,1000V
SolSensor Specifications
Parameter Value
Irradiance accuracy ±2%typical,0to1,500W/m2
Cell temp. accuracy ±2°Ctypical,SmartTempmethod
Tilt accuracy ±1degreetypical,0-45degree
Measurement interval Irradiance:0.1sTemperature:1s
Wireless range 100mwithopenlineofsight
Operating temp -10to+65°C
Headquarters117MorrisSt.Sebastopol,CA95472www.solmetric.comemail:[email protected]
Tel:+1-707-823-4600Fax:+1-707-823-4620
Printedonrecycledpaper.August,2014
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