HOUSEHOLD APPLIANCE, AND ARC FAULT DETECTION DEVICE AND METHOD THEREFOR

HOUSEHOLD APPLIANCE, AND ARC FAULT DETECTION DEVICE AND METHOD THEREFOR

Disclosed are a household appliance, an apparatus and a method for detecting a fault arc in the household appliance. The apparatus includes: a grid current detecting unit, configured to detect a current from a power grid to the household appliance so as to generate a first current detecting signal;...

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Hauptverfasser: RUAN, Zhaozhong, MAI, Zhiwei, WANG, Biying
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator RUAN, Zhaozhong
MAI, Zhiwei
WANG, Biying
description Disclosed are a household appliance, an apparatus and a method for detecting a fault arc in the household appliance. The apparatus includes: a grid current detecting unit, configured to detect a current from a power grid to the household appliance so as to generate a first current detecting signal; a filter protecting unit, configured to perform an attenuation processing on an arc signal in the power grid; a load current detecting unit, configured to detect an actual running current in a load of the household appliance so as to generate a second current detecting signal; and a control unit connected to the grid current detecting unit and the load current detecting unit respectively, and configured to identify and compare the first current detecting signal and second current detecting signal so as to determine a source of the fault arc. The apparatus is able to determine the source of the fault arc precisely and to avoid malfunction efficiently.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title HOUSEHOLD APPLIANCE, AND ARC FAULT DETECTION DEVICE AND METHOD THEREFOR
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