Arc fault protected device

An arcing fault protection assembly in an electrical device, and corresponding methods determine whether arcing is present in the device. The assembly comprises a sensor, a broadband noise circuit, and a controller. The sensor detects a current and develops a corresponding sensor signal. The broadba...

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Bibliographic Details
Main Authors GRATTAN BRIAN, HAUN ANDY A, DVORAK ROBERT F, LARSON BRETT E, WONG KON B
Format Patent
LanguageEnglish
Published 20.05.2003
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
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Summary:An arcing fault protection assembly in an electrical device, and corresponding methods determine whether arcing is present in the device. The assembly comprises a sensor, a broadband noise circuit, and a controller. The sensor detects a current and develops a corresponding sensor signal. The broadband noise circuit determines the presence of broadband noise in the sensor signal and produces a corresponding output signal. The controller processes the sensor signal and the output signal in a predetermined fashion to determine whether an arcing fault is present. The sensor, broadband noise circuit, and controller are mounted to the device.
Bibliography:Application Number: US19990469869