Solectria Renewables PVI 50KW Operating instructions

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233

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PVI50KW

PVI60KW

PVI75KW

PVI85KW

PVI100KW

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INSTALLATIONANDOPERATIONMANUAL

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©2013,SolectriaRenewablesLLC

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InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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IMPORTANTREGISTRATIONAND

WARRANTYINFORMATION

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Forwarrantytobecomeactive,thisinverter

mustberegistered.Toactivatewarrantyand

registerinverter,pleasevisitthelinkbelow.

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www.solectria.com/registration

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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IMPORTANTSAFETYINSTRUCTIONS

SAVETHESEINSTRUCTIONS

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Inthismanual“inverter”or“inverters”referstotheinvertermodels:PVI50KW,PVI60KW,PVI

75KW,PVI75KW‐PE,PVI85KW,PVI85KW‐PE,PVI100KWandPVI100KW‐PEunlessoneofthe

specificmodelsisnoted.

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Thismanualcontainsimportantinstructionsthatshallbefollowedduringinstallationand

maintenanceoftheinverter.

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Toreducetheriskofelectricalshock,andtoensurethesafeinstallationandoperationofthe

inverter,thefollowingsafetysymbolsareusedtoindicatedangerousconditionsandimportant

safetyinstructions:

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WARNING:Useextremecautionwhenperformingthistask.

Thisindicatesafactorfeatureveryimportantforthesafetyoftheuser

and/orwhichcancauseserioushardwaredamageifnotapplied

appropriately.

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NOTE:Thisindicatesafeaturethatisimportanteitherforoptimaland

efficientuseoroptimalsystemoperation.

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EXAMPLE:Thisindicatesanexample.

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InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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IMPORTANTSAFETYINSTRUCTIONS

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 Allelectricalinstallationsshallbeperformedinaccordancewithapplicablelocal,state,andnationalcodes.

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 Theinvertercontainsnouserserviceableparts.PleasecontactSolectriaRenewablesoraSolectriaRenewables

authorizedsysteminstallerformaintenance.SeeAppendixCforSolectriaRenewablescontactinformation

andauthorizedsysteminstallers.

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 Beforeinstallingorusingtheinverter,pleasereadallinstructionsandcautionmarkingsinthismanual,onthe

inverter,aswellasonthePVmodules.

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 Connectionoftheinvertertotheelectricutilitygridmustbecompletedafterreceivingpriorapprovalfromthe

utilitycompanyandmustonlybeperformedbyqualifiedpersonnel.

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 PVmodulesproducedangerouselectricalvoltageandcurrentwhenexposedtolightandcouldcreate

hazardousconditions.CompletelycoverthesurfaceofallPVmoduleswithanopaquematerialbeforewiring

themordonotconnectinter‐modulecables,PVsourcecircuits,and/orPVoutputcircuitsunderload.

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 Theinverterenclosureandbothdisconnectswitchesmustbelocked(requiringatoolorkeyforaccess)for

protectionagainstriskofinjurytopersons.Theenclosureincludesalockablehandleandcomeswithakey.

Keepthekeyinasafelocationincaseaccesstothecabinetisneeded.Areplacementkeycanbepurchased

fromSolectriaRenewables.

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SAVETHESEINSTRUCTIONS

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PRESCRIPTIONSDESECURITEIMPORTANTES

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 Touslestravauxd’installationélectriquedoiventêtreexécutésenconformitéauxnormesélectriqueslocales

ainsiqu’àlanormenationaleaméricaineetcanadienne.

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 LePVInecontientaucunepiècerequérantunentretienteffectuéparl‘utilisateur.Pourtoutemaintenance,

veuillezconsulterSolectriaRenewablesouuninstallateuragréeparSolectriaRenewables(lescoordonnéesde

SolectriaRenewablesetdesinstallateursagréessontindiquéessurlesitewebdeSolectriaRenewables:

www.solectria.com.

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 Avantd’installeroud’utiliserlePVIveuillezliretoutesinstructionsettouteslesmisesengardeprésentesdans

cemanuel,surlePVIetsurlesmodulesPV.

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 LeraccordementduPVIauréseauélectriquenedoitêtreeffectuéequ’aprèsavoirobtenuuneentente

d’interconnexionauprèsdelacompagnielocalededistributionélectriqueetuniquementpardupersonnel

autoriséetqualifié.

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 LasurfacedetouslescapteursPVdoiventêtrerecouverteentièrementd’unmatérielopaque

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 (noir)avantdeprocéderaucâblage.LescapteursPVexposésalalumièreproduisentducourantélectrique

susceptibledecréerunesituationderisque.

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CONSERVEZCESINSTRUCTIONS

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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TableofContents

1Introduction.................................................................................................................................7

2SitePreparationandInverterPlacement....................................................................................9

2.1ClearanceRequirements.....................................................................................................10

2.2InverterDimensions............................................................................................................11

3Installation.................................................................................................................................11

3.1CheckingForShippingDamage...........................................................................................11

3.2InverterLifting.....................................................................................................................11

3.3MountingDetails.................................................................................................................12

4DCConnectionsfromthePVArrayandACConnectionstotheGrid........................................14

4.1Grounding...........................................................................................................................14

4.2ACGroundingConnections.................................................................................................16

4.3DCGroundingConnections.................................................................................................17

4.4ACPowerConnections........................................................................................................18

ACCableEntry.......................................................................................................................19

NeutralKitOption.................................................................................................................22

4.5ACGroundFaultDetection.................................................................................................23

4.6DCPowerConnections........................................................................................................24

DCCableEntry......................................................................................................................24

StandardDCDisconnectSwitch............................................................................................27

FusedDCSubcombiner.........................................................................................................27

DCBreakerSubcombiner......................................................................................................28

4.7DCGroundFaultDetectionandInterruption.....................................................................28

4.8LightningandSurgeProtection...........................................................................................30

4.9RemoteShutdownandRevenueGradeMeterTerminals..................................................30

5CommissioningtheInverter.......................................................................................................32

5.1TurningontheInverter.......................................................................................................32

5.2Operation............................................................................................................................33

5.3TurningOfftheInverter......................................................................................................33

6InverterControlandCommunications”inthePVI50‐100........................................................34

LEDIndicators...........................................................................................................................36

6.1ButtonDescriptions............................................................................................................37

6.2MainDisplay........................................................................................................................38

6.3AccessingtheMenu............................................................................................................38

6.4NavigatingtheMenuStructure..........................................................................................39

6.5DisplayingInverterMeasurements.....................................................................................40

6.6ControllingtheInverter......................................................................................................42

6.7StoppingandStartingtheInverter.....................................................................................43

QuickStopandStart.............................................................................................................43

6.8AccessingPasswordProtectedFunctions...........................................................................44

6.9ChangingtheInverterPassword.........................................................................................45

6.10ChangingVoltageandFrequencyTripSettings................................................................46

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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6.11EstablishingEthernetConnectivity...................................................................................49

6.12SettingupTCP/IPNetworking..........................................................................................50

6.13ViewingCurrentTCP/IPsettings:......................................................................................50

6.14ManuallyConfiguringNetworkSettings...........................................................................52

6.15AutomaticallyConfiguringNetworkSettings...................................................................55

6.16SettingFallbackIPAddress...............................................................................................56

6.17EnablingSolrenViewWeb‐basedMonitoring...................................................................59

6.18ViewingandsettingtheDate/Time..................................................................................60

6.19RebootingtheSolrenViewGateway.................................................................................63

6.20ResettingtheSolrenViewGatewaytoFactoryDefaults...................................................64

6.21InverterCountsandLogs..................................................................................................65

6.22DisplayingErrorCounts.....................................................................................................66

6.23DisplayingErrorLogs.........................................................................................................68

6.24ClearingErrorCountsortheLog.......................................................................................70

6.25HMIMenuStructure.........................................................................................................72

7TroubleshootingandMaintenance...........................................................................................73

7.1InverterMessages...............................................................................................................73

7.2Troubleshooting..................................................................................................................75

7.3PreventativeMaintenance.................................................................................................76

7.4IntakeLouverVentCleaning...............................................................................................77

7.5OpeningMainEnclosure,DCDisconnectSwitch,andACDisconnectSwitch....................77

7.6Fusereplacements..............................................................................................................79

7.7WarrantyPolicy...................................................................................................................80

7.8ReturnMaterialAuthorizationPolicy.................................................................................85

8TechnicalData............................................................................................................................86

8.1InputDC(PV)Specifications................................................................................................86

8.2OutputACSpecifications....................................................................................................87

8.3OtherSpecifications............................................................................................................88

8.4InternalCircuitDiagram......................................................................................................90

9Appendices.................................................................................................................................91

9.1AppendixA–PVI50KW,60KW,75KW,85KW,100KWDataSheet...................................91

9.2AppendixB–StringSizingTool...........................................................................................91

9.3AppendixC–ContactInformation.....................................................................................91

9.4AppendixD–AuthorizedDistributors................................................................................91

9.5AppendixE–UL1741/IEEE1547AuthorizationLettertoMarkProduct...........................92

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InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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1 Introduction

ThePVI50‐100KWinverterseriesarecommercial,three‐phasegrid‐tiedPVinvertersdesignedto

beinterconnectedtotheelectricutilitygrid.Byfollowingthismanualtheinvertercanbe

installedandoperatedsafely.Thisinstallationguideisusedasareferenceforcommissioningand

asaguidelineonhowtousetheinvertermosteffectively.



FeedingpowerontothegridinvolvesconversionoftheDCvoltagefromthePVarraytogrid

compatibleACvoltagebyinvertingDCtoAC.Thisunitfeedspowerintoastandard,three‐phase

commercial,industrial,institutionalorelectricalutilityfacility’selectricalsystemwhichis

connectedtotheelectricalgrid.



IfthePVsystemandinverterareprovidingthesameamountofelectricalpowerthatthefacility

isusing,thennopoweristakenfromorfedintotheutilitygrid.Ifthefacilityisusingmorepower

thanthePVsystemisproviding,thentheutilitygridprovidesthebalanceofpower.Ifthefacility

isusinglesspowerthanthePVsystemisgenerating,thentheexcessisfedintotheutilitygrid.



Besuretofollowlocalregulationsregardingnetmeteringandinterconnectioninyourlocalarea.

NotethatsomeutilitiesneedtochangetheirrevenuekWhmeterforpropernetmetering

measurementandbilling.





Figure1.1–Grid‐TiedInverterApplication



PVISeriesInverter

Electrical

Grid

PhotovoltaicArray

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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

Figure1.2–PVIInverter(FrontView)



Figure1.3–PVIInverter(RearView)



DCdisconnect

switch

Nameplate

ExhaustAirOutput

CoolingAirIntake

ACDisconnect

LCDDisplay,Keypad,

&LEDIndicators

Communicationsor

SolrenViewAIR

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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2 SitePreparationandInverterPlacement

Theinverteriscomprisedofarainproof,industrialenclosurecontainingelectricalandelectronic

componentsandACandDCintegrateddisconnectingmeans.



NOTE:Iftheinverterismountedoutside,ensurethattheenclosureanddisconnect

switchdoorsremainclosedduringtheinstallationprocessincaseofrainorsnow.

Leavingthesedoorsopenduringinstallationwillvoidthewarranty.



NOTE:Itisrecommendedtostoretheinverterindoorsbeforeinstallation.Iftheinverter

istobestoredoutdoorsformorethanonemonthbeforebeinginstalledand

commissioned,caremustbetakentoavoidcondensationinsidetheunit.Removingthe

protectiveshippingwrapandplacingasmallspaceheaterinsidetheunitminimizesthe

amountofcondensationthatcanoccurduringonsiteoutdoorstorage.Once

operational,theinverterwillgenerateitsownheattopreventcondensation.



CriteriaforDeviceMounting:



 Becausethepowerelectronicsarewithintherainproofenclosure,theinvertercanbe

mountedoutdoors.



 Thelongestlifefortheinvertercanbeachievedbymountingtheunitinaclean,dryandcool

location.



 Foroptimalelectricalsystemefficiency,usetheshortestpossibleACandDCcablesanduse

themaximumallowablecablesize.



 Avoidinstallationincloseproximitytopeopleoranimals,asthereisanaudiblehigh‐

frequencyswitchingnoise.



 Installtheinverterinanaccessiblelocationfollowinglocalelectriccodesforenclosureand

disconnectswitchdoorclearancesandproximitytootherequipment.



 Althoughtheinverterisdesignedtofunctionatfullpowercontinuouslyinupto55oCambient

temperature,forlongestinverterlifeandperformance,donotmounttheinverterindirect

sunlight,especiallyinhotclimates.Iftheunitmustbemountedindirectsunlightametalsun‐

shieldisrecommended.Itisrecommendedthattheinverterismountedonthenorthsideof

buildingsoronthenorthsideofagroundmountPVarray.



CAUTION: Besuretoverifyloadcapacityoffloor,rooforpad,andensurethat

liftingequipmenthasadequateliftingcapacitytolifttheunit.



InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233Page10of92

InverterModelWeight

PVI50‐60KW1,450lbs

PVI75‐85‐100KW1,875lbs

PVI75‐85‐100KW‐PE2,070lbs

Table2.1–WeightofPVI50‐100Inverters



 InstallationsinmostUSjurisdictionsaresubjecttoNFPA70,knowncommonlybyelectricians

astheNationalElectricCode(NEC).TheNECrequiresthattheinverterbeconnectedtoa

dedicatedcircuitandnootheroutletsordevicesmaybeconnectedtothiscircuit.TheNEC

alsoimposeslimitationsonthesizeoftheinverterandthemannerinwhichitisconnectedto

theutilitygrid.SeeapplicablerevisionoftheNECformoreinformation.Itistheinstaller’s

responsibilitytofollowallapplicableelectriccodes.

2.1 ClearanceRequirements

 Theambienttemperaturemustbebetween–40oFand+130oF(–40oCand+55oC)forfull

power,continuousoperation.Theinverterwillautomaticallyreducepowerormayshutdown

toprotectitselfifambientairtemperatureattheintakerisesabove130oF(55oC).



 Thecoolingairexhaustsattherearandbottomoftheenclosure.Nothingshouldblockthe4inch

clearspaceundertheenclosurebetweenthemountingfeet.



 Aminimumdistanceof8inches(200mm)mustbeclearbehindtheinverterforrearcooling

airexhaust.12inches(300mm)isrecommended.



 Aminimumdistanceof12inches(300mm)mustbeclearabovetheinverterforventilation.



 MakesuretheACandDCdisconnectswitchesareaccessibleduringoperationandthatall

doorsmaybefullyopenedformaintenance.Installtheinverterinanaccessiblelocation

followingapplicableelectricalcodesforworkingclearancerequirementsandproximityto

otherequipment.



 Ifyouareinstallingtheinverterinanelectricalcloset,theaircirculationmustbesufficientfor

heatdissipation.Provideexternalventilationtomaintainanambientconditionoflessthan

130oF(55oC).Theambienttemperatureshouldbekeptaslowaspossibleatalltimesfor

optimalinverteroperationandlife.



ModelMax.HeatLoss

PVI50KW7,000Btu/hr

PVI60KW8,250Btu/hr

PVI75KW8,000Btu/hr

PVI85KW12,000Btu/hr

PVI100KW14,000Btu/hr

Table2.2–IndoorCoolingRequirements

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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2.2 InverterDimensions

Refertothecustomerinterfacedrawing(DOCR‐070190)fordetailedinverterdimensions.



3 Installation



WARNING:Beforeinstallingtheinverter,readallinstructionsandcautionmarkingsin

thismanualandontheinverteraswellasonthephotovoltaicmodules.



WARNING:Electricalinstallationshallbeperformedinaccordancewithalllocal

electricalcodes,theNationalElectricalCode(NEC),NFPA70,orCanadianElectrical

CodeforCanada(CEC).



WARNING:Connectingtheinvertertotheelectricutilitygridmustonlybecompleted

afterreceivingpriorapprovalfromtheutilitycompanyandinstallationperformed

onlybyqualifiedpersonnel/licensedelectrician(s).



3.1 CheckingForShippingDamage

Theinverteristhoroughlycheckedandtestedrigorouslybeforeitisshipped.Eventhoughitis

boltedontoarugged,oversizedpalletfordelivery,theinvertermayhavebeendamagedduring

shippingbypoorhandling,truckingortransferstationactivity.



Pleaseinspecttheinverterthoroughlyafteritisdelivered.Ifanydamageisseen,immediately

notifytheshippingcompanytomakeaclaim.Ifthereisanyquestionaboutpotentialshipping

damage,contactSolectriaRenewables.Photosofthedamagewillbehelpfulindocumenting

potentialshippingdamage.



 Donotaccepttheunitifitisvisiblydamagedorifyounotevisibledamagewhensigning

shippingcompanyreceipt.

 Notedamageonshippingpaperswiththetruckdriver.Reportdamageimmediatelytothe

shippingcompany.

 Donotremovetheunitfrompallet/packagingifdamageisevident.

 Ifitisdeterminedthattheunitmustbereturned,aRMAnumbermustbeobtainedfrom

SolectriaRenewablespriortoshippingtheunitback.



3.2 InverterLifting



WARNING:Theinvertermaytipoverifimproperlymoved,potentiallycausing

damagetoequipment,personalinjuryordeath.Donottiltthepalletorinverter

whilemovingit.

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 Useaforkliftorforkattachmentorotherequipmentifliftingfromthebottom.Theforks

shouldbesetwitha27"outsidespacingsotheyfitjustinbetweentheinverter's4x4"

aluminumtubefeet.Beforelifting,makesureforksareagainsttheinsideedgesofbothfeet.

 Onceoffthepallet,apalletjackcanalsobeusedtorolltheunitonafloor.Usea27”wide

jack.

 Alternatively,theinvertercanbeliftedusingtheliftingtabsonthetop.Ifusingthislifting

method,liftwithverticalchainsandhooksconnectedtoaproperliftingdevice.Pleaserefer

tothecustomerinterfacedrawing(DOCR‐070190)fortheminimumrecommendedchain

lengthtopreventdamagetotheinverter.



3.3 MountingDetails



WARNING:Donotinstalltheinverteronorovercombustiblesurfacesormaterials.



Theinverterincludesmountingfeetwithfourholessizedfor½”diameterhardware.Refertothe

diagrambelowandthecustomerinterfacedrawing(DOCR‐070190)fordetailedmounting

dimensions.



Itisrecommendedtousefourboltsforthemountingfeet.Hotdipgalvanizedgrade5,grade8,or

stainlesssteelbolts½”(13mm)indiameterareacceptable.Usealockwasherandflatwasher

witheachbolt.



Oncemountingiscompleted,removeshippingaidsfromtheinverterincludingpackingmaterial

undercowlonfrontdoor,packingmaterialbetweenlargepowercablesandthecontactorinside

upperportionoftheinverter,andpackingmaterialinsidetheDCdisconnectswitchenclosure

neartheswitchmechanism.



InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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

Fig.3.3MountingHoleDiagram(ViewfromtopofInverter)



InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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4 DCConnectionsfromthePVArrayandACConnectionstotheGrid



WARNING:Allelectricalinstallationsshallbeperformedinaccordancewithapplicable

local,state,andnationalelectriccodes.



WARNING:OnlyconnecttheDCandACpowerandgroundingwireswiththeACandDC

disconnectswitchesoffandthecircuitsisolatedfromACpowerfromthegridandDC

powerfromthearray.



WARNING:Makesuretoconnecttheinverterandotherexposedmetalequipmentin

thesystemtothegroundingelectrodesystemthroughtheinstallationofthe

GroundingElectrodeConductor(s)andEquipmentGroundingConductorsbefore

proceedingtoconnectanyDCorACpowerwires.



WARNING:OnlymakeACconnectionsdirectlytothelugswithintheACdisconnect

switchandDCconnectionstothelugswithintheDCdisconnectswitch.



NOTE:AllgroundingandpowerwiringterminalsaredualratedforCopperand

AluminumWire.Whenusingaluminumwireexercisebestindustrypracticestoensure

areliableconnection;thoroughlycleantheconductorjustpriortomakingtheelectrical

connectionanduseanoxideinhibitortopreventtheformationofaluminumoxide.



NOTE:Groundingandpowerwiringterminalsareratedto167°F(75ᵒC).



NOTE:WhenconduithubsareusedforDCandACcableentryinanoutdoororwet

location,rain‐tightorwetlocationhubsthatcomplywiththerequirementsinthe

StandardForFittingsForConduitandOutletBoxes,UL514B,aretobeused.



ACgroundingandpowerconnectionsaremadeintheACdisconnectswitchoftheinverter.The

typeofACdisconnectswitchprovidedwiththeinverterdependsontheinverterpowerrating,

outputvoltage,andfusingspecifiedbythecustomer(i.e.fusedorunfused).



DCgroundingandpowerconnectionsaremadeintheDCdisconnectswitchoftheinverter.The

typeofDCdisconnectswitchprovidedwiththeinverterdependsontheinverterpowerrating

andDCovercurrentprotectionspecifiedbythecustomer(i.e.fusesorbreakers,amperage,and

quantity).



4.1 Grounding

ThePVI50‐100KWinverterhasgroundingconnectionpointsintheDCandACdisconnectswitches

aslistedbelow.ThesepointsareusedforGroundingElectrodeConductor(GEC)andEquipment

GroundingConductor(EGC)connections.PVsystemshaveEGCandGECconductorrequirements

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233Page15of92

onboththeACandDCpointsofentry.GEC(s)andEGC(s)shouldbesizedandinstalledperthe

electricalcoderequirementsoftheAreaHavingJurisdiction.



 DCDisconnectSwitch

o GroundLug–ForDCGECconnection.Dependingonthegroundingsystem

configuration,theDCgroundlugmayserveastheconnectionpointforcombined:

 DCGECandACGEC

 DCGEC,ACGEC,andACEGC

o GroundBar–ForDCEGCconnection(s)



 ACDisconnectSwitch

o GroundLug(400AACdisconnectswitchonly)–ForACGECinsystemswithseparate

DCandACGEC’s.

o GroundBar–ForACEGCconnection(s).Dependingonthegroundingsystem

configuration,theACgroundbarmayalsoserveastheconnectionpointfortheAC

GEC.



TheDCandACgroundingconnectionpointsareinternallybondedwithintheinverteralongwith

theinverterenclosure,disconnectswitches,andotherinternalmetalcomponentsandcircuitsthat

requireaconnectiontoground.Thegroundingcircuitisisolatedfromtheinternalisolation

transformerneutralpointandoptionalneutralkit.

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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4.2 ACGroundingConnections

ACgroundingconnectionlocations,connectionquantity,conductorrange,andterminaltorque

requirementsareshownbelow.



Fig.4.1aACGroundConnection–200A

(200AUnfusedACDisconnectSwitchShown)

Fig.4.1bACGroundConnection–400A

(400AUnfusedACDisconnectSwitchShown)



ACDisconnect

SwitchType*

ACGround

Connection

MaxNumberof

ConnectionsConductorRangeTorque

200AGroundBar26AWG‐1/0AWG40in‐lbs

400AGroundBar24AWG‐1/0AWG40in‐lbs

GroundLug12AWG–250kcmil275in‐lbs

*SeeTables4.3&4.4todeterminetheACdisconnectswitchtypebyinvertermodel.

Table4.1–ACGroundConductorSizes&Torques



ACGroundBar

ACGroundBar

ACGroundLug

(400AACDiscoOnly)

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233Page17of92

4.3 DCGroundingConnections

DCgroundingconnectionlocations,connectionquantity,conductorrange,andterminaltorque

requirementsareshownbelow.



Fig.4.2DCGroundConnection

(600ADCDisconnectSwitchw/DCBreakersShown)



DCDisconnect

SwitchType*

DCGround

Connection

MaxNumberof

ConnectionsConductorRangeTorque

400AGroundBar414‐1/0AWG40in‐lbs

GroundLug16AWG‐250kcmil275in‐lbs

600AGroundBar514‐6AWG40in‐lbs

GroundLug16AWG‐250kcmil275in‐lbs

*SeeTable4.6todeterminetheDCdisconnectswitchtypebyinvertermodel.

Table4.2–DCGroundConductorSizes&Torques



DCGroundLug

DCGroundBar

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

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4.4 ACPowerConnections



NOTE:EachAClugisdesignedforsingleconductoruseonly.Wheremultiplelugsper

phaseareprovided,eachlugisdesignedforsingleconductoruseonly.



NOTE:Notethateachinverterpowerratingisofferedwiththeoptionofeitherafused

orunfusedACdisconnectswitch.Theinstallershouldrefertothecurrentrequirements

forthespecificinverterpowerrating,ACvoltage,anddisconnectswitchtype

(fused/unfused)todeterminetheappropriatewiresizes.



NOTE:ThephaserotationofthegridconnectionstotheinvertermustfollowtheL1/A,

L2/BandL3/Cclockwiseorder.



NOTE:WhenafusedACdisconnectswitchisnotprovided,overcurrentprotectionofAC

poweroutputcablesshallbeprovidedbyothersaccordingtolocal,state,andnational

coderequirements.



ThePVI50‐100KWmodelscomewitheitherastandardACdisconnectswitchwithoutfusesor

optionalfusedACdisconnectswitch(dependingonwhatwasordered).TheACPowerWiring

connectionsaremadewithintheinverter’sACdisconnectswitchasshownbelow.

NotethattheACdisconnectswitchesofPVI50‐100KWinvertersareloadbreakrated.



Fig.4.3ACPowerConnections‐200A

(200AUnfusedACDisconnectSwitchShown)

Fig.4.4ACPowerConnections‐400A

(400AUnfusedACDisconnectSwitchShown)



L1L2L3L1 L2 L3

InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233Page19of92

ACCableEntry

TheACcableentrylocationdependsontheACdisconnectswitchcurrentratingandorientation

(sidefacingorforwardfacing).Usethefollowingtablestodeterminewhichdisconnectswitch

yourinverteruses,andthenrefertothecustomerinterfacedrawing(DOCR‐070190)forACcable

entrylocations.



ACVoltageDrop

ACvoltagedropshouldbeminimizedtoavoidnuisancetrippingresultingfromincreasedAC

voltageseenattheinverter’soutputterminalsastheinverterfeedscurrentintothegrid.

MinimizingACvoltagedropalsoresultsinhighersystemefficiency.AnACvoltagedropofless

than1%isrecommended.



InstallationandOperationManual(RevA) PVI50‐100KWSeriesInverters

DOCR‐070233Page20of92

ThetablebelowpertainstothestandardACdisconnectswitcheswithoutfuses.Itincludes

requirementsfortheACconductorsize,thenumberofterminalsavailable,properterminal

torque,andACdisconnectswitchcurrentratingsforallPVI50‐100KWinvertermodels.ThePE

modelsusethesameACdisconnectswitchesasthestandardmodels.



AC

VOLTAGE

INVERTERMODEL

WithUnfusedAC

DisconnectSwitch

TERMINALS

PERPHASEWIREGAUGETERMINAL

TORQUE

DISCONNECT

SWITCH

SIZE

208V

PVI50KW208V 12/0AWG‐250kcmil275in‐lbs200A

PVI60KW208V 14/0AWG‐250kcmil275in‐lbs200A

PVI75KW208V 1300kcmil‐750kcmil500in‐lbs

400A

21/0AWG‐300kcmil500in‐lbs

PVI85KW208V 1350kcmil‐750kcmil500in‐lbs

400A

21/0AWG‐300kcmil500in‐lbs

PVI100KW208V 1500kcmil‐750kcmil500in‐lbs

400A

22/0AWG‐300kcmil500in‐lbs

240V

PVI50KW240V 11/0AWG‐250kcmil275in‐lbs200A

PVI60KW240V 13/0AWG‐250kcmil275in‐lbs200A

PVI75KW240V 14/0AWG‐750kcmil500in‐lbs

400A

21/0AWG‐300kcmil500in‐lbs

PVI85KW240V 1300kcmil‐750kcmil500in‐lbs

400A

21/0AWG‐300kcmil500in‐lbs

PVI100KW240V 1350kcmil‐750kcmil500in‐lbs

400A

21/0AWG‐300kcmil500in‐lbs

480V

PVI50KW480V 14AWG‐250kcmil275in‐lbs200A

PVI60KW480V 13AWG‐250kcmil275in‐lbs200A

PVI75KW480V 12AWG‐250kcmil275in‐lbs200A

PVI85KW480V 11AWG‐250kcmil275in‐lbs200A

PVI100KW480V 11/0AWG‐250kcmil275in‐lbs200A

600V

PVI50KW600V 16AWG‐250kcmil275in‐lbs200A

PVI60KW600V 14AWG‐250kcmil275in‐lbs200A

PVI75KW600V 13AWG‐250kcmil275in‐lbs200A

PVI85KW600V 12AWG‐250kcmil275in‐lbs200A

PVI100KW600V 11AWG‐250kcmil275in‐lbs200A



Table4.3–ACPowerConductorSizes&TorquesforStandardACDisconnectSwitches



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