Latronics PV Edge Grid Connect - SPECIAL FEATURES

12
SPECIAL FEATURES
CircuitBreakers
DigitalKwHMeter
NightTimeDisconnect
ParallelOperation
Note:
MaximumPowerPointTracking
Protection
MaintenanceCycle
ThereisonedoublepoleDCcircuitbreakerisolatingbothDCpositive&DC
negative.
TheKwHmetershowsanaccumulativereadingofthetotalpowergenerated
andallowstheusertomonitortheirgreenpowerproduction.LCDdisplay
with5digitsand2decimalplaces(i.e.99999.99kwh).
AfterdarkwhenthesolarinputisnolongeravailabletheInverterwill
automaticallydisconnectfromthe ACgrid. Thisfeatureensuresthatduring
thenight,theInvertercannotconsumeanypowerwhatsoeverwhile
remainingidle.Uponsunrisethenextmorningwhensolarinputbecomes
availableagain,thePVedgewillautomaticallyreconnecttothe ACgridand
begingeneratingpower.
ThePVedgeautomaticallysynchronizestothe ACgrid,thereforetheoutput
ofmultipleunitscanallbeconnectedtogether,andtheywillallbe
synchronizedbythe ACgrid.
Theoptimumpowerlevelfromthesolarinputdependsontheavailablesolar
modules.Evenincloudyweatherwithfluctuationsinthesolarradiation
level,thePVEdgeconstantlymonitorsandtrackstheoptimumoperating
pointtoensuremaximumpowerfromthesolarmodulesisachieved.
The ACgridsupplyisconstantlymonitoredforunderandovervoltage,over
andunderfrequency,andantiislandingconditionsviaactivephaseshifts.
TheDCinputisprotectedagainstovervoltage,reversepolarityandover
currentviaveryfastcurrentlimitcontrol.IsolationbetweentheDCinputand
ACoutputisachievedviathe Toroidal Transformer. Thetemperatureofthe
transformerandswitchingdevicesarecontinuouslymonitored. TheInverter
isfittedwithacoolingfan,whichistemperaturecontrolledandonlyoperates
whenrequired.
WheninBatterymode(MPPT disabled)amaintenancecycleisperformed
every30days. Thisisashortboostcycleforsealedbatteriesoranequalize
chargeforfloodedcells.InthismodethebottomLEDwillflashslowlyuntil
thecycleiscompleted.
TheSolarinputsofmultipleunitInvertersarenottobeparalleled.
9
PVEdge
GridInverter
Turbine
Controller
Turbine
3-PhaseRectifier
(Maybebuiltintoturbine)
BatterylessTurbine
GridMains
TheLatronics TurbineControllerutilizesthelatestinmicro-controllerdesigntodelivera
stableandsafesupplyofpowertothegridconnectinverter.Designedspecificallyto
integratewiththePVEdgelineofLatronicsinverters,itallowsbattery-lessgrid
connectionofwindandwaterturbines.
NOTE:
PVEdgemustbeinBatteryMode.
(Seepg13)