BREAKDOWN DETECTION DEVICE AND DETECTION METHOD THEREOF

BREAKDOWN DETECTION DEVICE AND DETECTION METHOD THEREOF

There is a fault detecting apparatus 1 for detecting a fault in an electric circuit including two strings STa and STb connected parallel to respectively connect PV arrays 2a and 2b with an inverter 5 and including wires Lp and Ln that aggregates two strings STa and STb and to connect the aggregated...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: IKAWA, EIICHI, UMENO, CHIEKO, AMBO, TATSUAKI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:There is a fault detecting apparatus 1 for detecting a fault in an electric circuit including two strings STa and STb connected parallel to respectively connect PV arrays 2a and 2b with an inverter 5 and including wires Lp and Ln that aggregates two strings STa and STb and to connect the aggregated strings STa and STb with the inverter 5. The fault detecting apparatus 1 includes detecting a current Iap flowing through a wire STap of the string STa, detecting a current Ip flowing through the aggregating wire Lp, and detecting the fault when it is detected that the current Iap flows in the string STa and it is detected that the current Ip does not flow in the aggregating wire Lp.