>> P.25
LightningsurgescoeintotheeectricasstethroughetairesseciareneaeenergsstesareocatedoutsideiteanstheareeosedtoharsheatherconditionsandightningisnotecetionaThePinvertersandareotendaagedcausedightningsurgendthosearetheeuientshoudeostrotectedsurgesoutothecoonentsoPsstetheinverterandgetdaageditcoststhePssteonernotontheeeorreacingtheeuientutasothePsstedoesntorkduringtheeriodosingtheoortunittogenerateoerForthere-combinerboxandcombinerboxinthePVsystem,DCSPDs(SurgeProtectiveDevices)arenecessary.toaT2PDurgeProtectiveDeviceseorothTeandTe2PDighuaitandighDischargecaacitBoththeDCsideandtheACsidehavetoinstalltheSPDs(SurgeProtectiveDevices)forinverters.Surgescancomeintothesystemfrombothsidesfortheinverterswithabigcapacity.SPDsarealsonecessaryforthesmallinverterssuchasstringinverterBatteryEnergyStorageisalsooneofthemajorpiecesofequipmentthatneedsSPDs(SurgeProtectiveDevices).Therearesomanyaccidents(mainlyre)thatmustbecausedbylightning.SurgecountersshouldalsobeinstalledinBESSSurgecountersenableustoconrmhowSPDs(SurgeProtectiveDevices)areeffectiveonthesites.Surgecounterscounthowmanytimesthelightningsurgecameintothesystem.Itcanbealsousedforriskassessment.ecoineroCoineroDCsidetoaDCPDighuaitandighDischargecaacitnvertersithaigcaacitDCsidetoaDCPDighuaitandighDischargecaacittringinverterCsidetoaCPDighuaitandoriceCsidetoaCPDighuaitandoricetoaDCPDtoaurgecounterC20isideusedinaovertheordor25
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