Delta Solivia 2.5

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Photovoltaics (abbr.: PV)
TheconversionofPVenergyintoelectricalenergy.
Thenameiscomposedofthecomponentparts:Photos-theGreekwordforlight-andVolta-after
AlessandroVolta,apioneerinelectricalresearch.
Power dissipation
Powerdissipationisdesignatedasthedifferencebetweenabsorbedpowerandpowerofadevice
orprocessyielded.Powerdissipationisreleasedmainlyasheat.
PV cell
PVcellsarelarge-surfacephotodiodeswhichconvertlightenergy(generallysunlight)intoelectrical
energy.Thiscomesaboutbyutilizationofthephotoelectriceffect(photovoltaics).
PV generator
SystemcomprisinganumberofPVmodules.
PV module
PartofaPVgenerator;convertsPVenergyintoelectricalenergy.
RJ45
Abbreviationforstandardizedeight-poleelectricalconnectorconnection.RJstandsforRegistered
Jack(standardizedsocket).
RS485 (EIA485)
Differentialvoltageinterfaceonwhichthegenuinesignalistransmittedononecoreandthene-
gated(ornegative)signalontheothercore.
Separate grid system
Energysupplyequipmentwhichiscompletelyindependentofaninterconnectedgrid.
Solar inverter
isanelectricaldevicewhichconvertsDCdirectvoltageintoACvoltageand/ordirectcurrentinto
alternatingcurrent.
String
DesignatesagroupofelectricalPVmodulesswitchedinseries.
String solar inverter (solar inverter concept)
ThePVgeneratorisdividedupintoindividualstringswhichfeedintothegridovertheirownstring
solarinvertersineachcase.Inthisway,theinstallationisconsiderablyfacilitatedandthegainde-
crease,whichcanarisefromtheinstallationorfromdifferentshadingconditionsofthePVmodules,
isconsiderablyreduced.
TAB (2000)
TheTAB2000arethetechnicalregulationsgoverningconnectiontothelow-voltagegridoperated
bydistributionsystemoperatorsinGermany.TheseTechnischenAnschlussbestimmungenorTAB
forshorthavebeeninforcesincetheyear2000.TheydenetherequirementsimposedbyDSOs
ontheelectricalsystemsoperatedbytheendcustomersofutilitycompanies.
VDE
VerbandderElektrotechnik,ElektronikundInformationstechnike.V.
(AssociationofElectricalEngineering,ElectronicsandInformationTechnology).