PV nalyer - atecorp.com€¦ · Better Solar. See all our solutions at Key Features • I-V curve...
Transcript of PV nalyer - atecorp.com€¦ · Better Solar. See all our solutions at Key Features • I-V curve...
PV
Analyzer
™ P
VA-600®
Fast and Accurate Performance Verification•CommissionnewPVarrayswithconfidence•Troubleshootarraysquickly•Demonstratefulfillmentofcontractobligations•Recordanarrayperformancebaseline
Measure a PV string in seconds •Oneelectricalconnection•Onemeasurement•Completeperformanceverification
Expert Tools. Better Solar.Seealloursolutionsatwww.solmetric.com
Key Features•I-Vcurvetracing•Built-inpredictivemodelsforperformanceevaluation
•Irradianceandtemperaturemeasurementoptions
•Wirelessconvenienceandflexibility
•600V,20A
PCnotincluded
I had the great fortune of learning about PV through the eyes of an IV curve tracer. I consider that education a critical part of my success in understanding and troubleshooting how PV systems operate. Now that these devices are so much more affordable, there is no good reason to not get one.
—Bill Brooks
CourtesyChevronEnergySolutions,©2011
Advanced Test Equipment Rentalswww.atecorp.com 800-404-ATEC (2832)
®
Established 1981
Application SetupTestingonestringatatimeatafusedcombinerbox
PVA Sensor Kit (optional accessory)
Fused C
om
biner B
ox
WirelessCommunication
Windows PCRunningPVA Software
I-V Measurement Unit
transmitter
Thermocouple
transmitterSensorIrradiance
(in plane of array)
Irradiance and TemperatureMeasuringtheirradianceandtemperaturealongwiththeI-Vcurveallowsdeeperanalysisofarrayperformance.ThePVA-600providesmultipleoptions.
1. Wireless Sensor KitTheaccessoryWirelessSensorKitautomaticallycapturessensordataatthetimetheI-Vcurveismeasured.Thissavestime,reduceserrors,andimprovesmeasurementaccuracyunderchangingatmosphericconditions.(Irradianceandtemperaturecanalsobeenteredmanually.)
2. “Array-as-sensor” modeInsomeapplicationsitisanadvantagetoautomati-callycalculatetheirradiance,thetemperature,orbothfromthemeasuredI-Vcurve.Thisallowsde-tailedcomparisonofmeasuredandpredictedcurveI-Vcurveshape,evenunderchangingirradianceandtemperature,andrequiresnoexternalsensors.
PV Analyzer User Interface PV Model ChoicesPerformanceevaluationsalwaysrequirecomparisonofmeasuredresultswithareference.Forin-stalledPVarrays,thereferenceisaPVmodel.TheSolmetricPV Analyzercomparesmeasuredandmodeledarrayperformance,takingintoaccounttheexistingirradianceandtemperature.
Threebuilt-inmodelsensurecover-ageofalltypesofPVmodules:
1. Sandia model• Themostcomprehensive
PVmodel• DevelopedbySandia
NationalLaboratories• Basedonmodule
measurementstakeninindependentlaboratories
• Accountsforallperformance-relatedfactorsofaPVmodule
2. Five-parameter model• DevelopedbyU.Wisconsin
SolarEnergyLab• ObtainedfromCECNSHP
program• Basedonindependentlab
measurements• BroaderrangeofcoveredPV
modules
3. Single-point modelThismodelpredictsthemaximumpowervoltageandcurrentattheexistingirradianceandtempera-ture.BasedondatasheetSTCvalues,thismodelcanbeusedwithalmostanyPVmodulewithbasicspecifications.
I-VandP-VcurvesofahealthyPVstring.InverterMPPTvoltagerangeishighlightedingreen.
Settingupbuilt-inPVmodelsforcomparisonwithmeasurementresults.
Displayofmeasuredversuspredictedmaximumpowervalues.
Tabularsummarycomparespredictedandmeasuredresults.“Snapshot”functionallowscomparisonofmultipleresultsasanaidtotroubleshooting.
®
Ordering InformationPVA-600 PV AnalyzerIncludes• I-VMeasurementUnitwithsoft
carryingcase• PVASoftwareforWindows™• WirelessUSBInterface(for
Windowslaptoportablet)• Connectorsaverjumperset(two
shortm-fMC-4jumpers)• MC-4toMC-3adaptorcable
set(contact Solmetric for other connector styles)
• Batterycharger(ACadapter)
Optional AccessoriesWirelessSensorKit:• Irradiancesensorand
wirelesstransmitter• Thermocouples(5)and
wirelesstransmitter• WirelessUSBInterface
(connectstoWindowslaptoportablet)
Computer RequirementsMicrosoftWindows™7(64-bitor32-bit),WindowsVista(32-bitonly),WindowsXPSP3/Processor speed>700MHz /RAM>500MB /Hard Drive Space>100MB/Min. Display resolution1024by600pixels /USB ports2USBportsoroneportusinganexternalUSBexpander
To PurchaseOnlinewww.solmetric.comCallToll-freeinUS:877-263-5026Tel:+1-707-823-4600
General InformationCharacteristic Description
High efficiency PV modules
Solmetric’sI-Vmeasurementtechnologyisspeciallydesignedtoaccuratelymeasurehigh-efficiency,back-contactPVmodulesaswellasstandardmodules.
Measurement range selection
Measurementcircuitryautomaticallyoptimizestobestmea-surethePVmoduleorstring
Control & display unit User-providedWindowscomputer,eg.laptoportablet
PC to measurement unit interface
WirelessUSBadaptor(provided)
Wireless range 10–50metersdependingonlineofsight.
Module/Inverter data On-boarddatabasewiththousandsofPVmodulesandinverters.UpdatesprovidedatSolmetricwebsite.
Inverter limits Maximumpowertrackingrangeofuser-selectedinverterissuperimposedontheI-Vgraphasareferencecheckonthesystemdesign.
Carrying case Measurementunitincludesafactory-installedpaddedsoftcase,withhandle,shoulderstrapandaccessorypouch.
Protection features Automaticsafeguardsprotectagainstdamagefromover-temperature,over-voltage,over-current,andreversepolarity.
Dimensions 16in.x8in.x5in.(notincludingcablepouchorPVleads)
Electrical Specifications
Parameter Value
PV voltage measurement range 0–600VDC
PV current measurement range 0–20ADC
Recommended minimum Voc 20VDC
Recommended minimum Isc 1ADC
I-V measurement cycle time 4s(typical)
I-V measurement time (I-V sweep) 80–240ms
Measurement points per trace 100(typical)
Ambient operating temperature range * 0to+50degC
Storage temperature -20to+60degC
Battery life (continuous operation) 12hoursbetweencharges
Charging time 6hours
Safety IEC-61010CATIII,600V
Protection Over-voltage,over-current,over-temperature
Headquarters117MorrisSt.Suite100Sebastopol,CA95472www.solmetric.comemail:[email protected]
Tel:+1-707-823-4600Fax:+1-707-823-4620
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About SolmetricSolmetric provides accurate, time-saving solutions for solar professionals.
Watch the PV Analyzer video online www.solmetric.com/videos1.html