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SMA Solar Technology AG
Bedieningshandleiding SBxx-1VL-40-BE-nl-13 85
3. Als er een aardlek wordt gevonden, bepaal dan aan de hand van de verhouding tussen de
twee gemeten spanningen de positie van het aardlek en verhelp het aardlek.
4. Als er geen duidelijk aardlek meetbaar is en de melding nog steeds wordt weergegeven, voer
dan een isolatieweerstandsmeting uit.
5. Sluit strings zonder aardlek weer op de omvormer aan en stel de omvormer weer in bedrijf
(zie installatiehandleiding van de omvormer).
Locatie van het aardlek
Het voorbeeld toont een aardlek tussen het tweede en derde PV-paneel.
+
100 V 100 V 100 V 100 V 100 V
V = 200 V
1
V = 300 V
2
Controle d.m.v. isolatieweerstandsmeting
Als de spanningsmeting niet voldoende bewijs voor een aardlek oplevert, kan de meting van de
isolatieweerstand het resultaat preciseren.
+
Afbeelding 12: Schematische weergave van de meting
85


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