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Potential isolation

Noconductiveconnectionbetweentwocomponentparts.

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 generator

Systemcomprisinganumberofsolarmodules.

Solar inverter

isanelectricaldevicewhichconvertsDCdirectvoltageintoACvoltageand/ordirectcurrentinto

alternatingcurrent.

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 network system

Energysupplyequipmentwhichiscompletelyindependentofaninterconnectednetwork.

Solar cell

Solarcellsarelarge-surfacephotodiodeswhichconvertlightenergy(generallysunlight)intoelectri-

calenergy.Thiscomesaboutbyutilizationofthephotoelectriceffect(photovoltaics).

Solar module

PartofaPVgenerator;convertssolarenergyintoelectricalenergy.

String

Designatesagroupofelectricalsolarmodulesswitchedinseries.

String solar inverter (solar inverter concept)

ThePVgeneratorisdividedupintoindividualstringswhichfeedintothenetworkovertheirown

stringsolarinvertersineachcase.Inthisway,theinstallationisconsiderablyfacilitatedandthe

gaindecrease,whichcanarisefromtheinstallationorfromdifferentshadingconditionsofthesolar

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).

VDEW

UnionofGermanElectricalPowerStations.

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