Breakdown detection device and detection method thereof

Breakdown detection device and detection method thereof

A breakdown detection device (1) detects a breakdown of an electrical circuit containing: two strings (STa, STb) connected in parallel respectively for connecting a PV array (2a, 2b) and an inverter (5); and aggregated electrical wires (LP, Ln) for aggregating the two strings (STa, STb) and connecti...

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Hauptverfasser: UMENO CHIEKO, IKAWA EIICHI, AMBOH TATSUAKI
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator UMENO CHIEKO
IKAWA EIICHI
AMBOH TATSUAKI
description A breakdown detection device (1) detects a breakdown of an electrical circuit containing: two strings (STa, STb) connected in parallel respectively for connecting a PV array (2a, 2b) and an inverter (5); and aggregated electrical wires (LP, Ln) for aggregating the two strings (STa, STb) and connecting with the inverter (5). The breakdown detection device (1) detects as a breakdown the case that the current (Iap) flowing through the electrical wire (STap) of string (STa) is detected, the current (Ip) flowing through aggregated electrical wire (LP) is detected, it is detected that current (Iap) is flowing through string (STa), and it is detected that current (Ip) is not flowing through aggregated electrical wire (LP).
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Breakdown detection device and detection method thereof
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