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SMA Solar Technology AG Zoeken van fouten
Installatiehandleiding SB12-17-IA-nl-52 57
Positie van het aardlek
De positie van de aardlek kan aan de hand van de verhouding van de gemeten spanningen
tussen plus ten opzichte van het aardpotentiaal (PE) en min ten opzichte van het aardpotentiaal
(PE) bij benadering worden bepaald.
Voorbeeld:
De aardlek bevindt zich in dit geval tussen de tweede en derde PV-module.
De aardlektest is afgesloten.
Resultaat Maatregel
U heeft een aardlek geconstateerd. De installateur van de PV-generator moet
de aardlek in de betreffende string
verhelpen. De positie van het aardlek kunt
u met behulp van onderstaande
beschrijving bepalen.
Defecte string niet opnieuw aansluiten.
De omvormer sluiten en in bedrijf nemen
zoals beschreven in hoofdstuk
6.1”Omvormer in bedrijf stellen”
(Pagina37).
U heeft geen aardlek geconstateerd. Waarschijnlijk is een van de thermisch bewaakte
varistoren defect.
De varistoren controleren zoals beschreven
in hoofdstuk 9.3.2”Werking van de
varistoren controleren” (Pagina58).
57


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