Delta Solivia 2.5

3
3 Introduction
Withthisdeviceyouhaveacquiredasolarinverterforconnectionofphotovoltaicsystemstothe
grid.ThisEuropeansolarinvertercanbeusedinandisapprovedforthefollowingcountries:Ger-
many, France, Spain, Italy, Portugal, Greece, Czech Republic and Belgium. The solar inverter
ischaracterizedbyitsadvancedhousingdesignandstate-of-the-arthigh-frequencytechnology,
whichenablethehighestlevelsofefciency.
Thesolarinverterincludesmonitoringunits,suchasanti-islandingprotection.Thefunctionofthe
anti-islandingprotection(automaticisolationpointforin-plantgenerationsystems)stipulatescom-
pliancewiththespecicationsofDINVDE0126-1-1,EN50438,ENELG.L.12/2008,RD1663,
andcompliancewiththedirectivesforparalleloperationofpowergenerationplantsonlow-voltage
gridofyourlocalutilitycompanies.Thesearedeclaredbycerticates(CECertication-see§12).
Theinverterisusableindoorsandoutdoors(IP65).
Inthefollowingtechnicaldescription,theprecisefunctionsareexplainedtotheinstaller,aswell
astheuser,whicharerequiredfortheinstallation,operationalstart-upandhandlingofthesolar
inverter.
4 System
Thesolarinverterconvertsdirectcurrentfromthesolarcellsintoalternatingcurrent.Thisenables
youtofeedyourself-producedsolarenergyintothepublicgrid.
ThankstoefcientMPPtracking,maximumcapacityutilizationofthesolarenergyplantisensured
eveninthecaseofcloudyskyconditions.
ThestringconceptmeansthatPVmodulesarealwaysconnectedinseries(inastring)and/orthat
stringswiththesamevoltageareconnectedinparalleltothesolarinverterwiththeaimofsigni-
cantlyreducingthephotovoltaicsystem’scablingrequirements.
Thefactthatthemodulesareconnectedinstringsalsomeansthatthephotovoltaicsystemcanbe
perfectlymatchedtothesolarinverter’sinputvoltagerange.
4.1 Data evaluation and communication
Theintegrateddatadisplay,processingandcommunicationofthedeviceenableseasyoperationof
thesolarinverter.Monitoringoftheoperationalstatusandsignalingofoperationalfailuresareca-
pableofbeingcalledupoverthedevicedisplay.Thedatainterfaceenablesthedownloadingofdata
whichcanbeevaluatedwithaPCsystemandguaranteescontinuousrecordingofoperatingdata.
Thebestwayofaccessingthisfunctionalityisviatheavailableaccessories(e.g.WEB´log);com-
prehensiveandseamlesssolarinvertermonitoringisensured.
Thedataread-outovertheintegratedinterfaceandthedisplayispossibleonlyinsolaroperation.