ARC FAULT DETECTOR IMMUNE TO DIMMER TRANSIENT CURRENT AND CIRCUIT BREAKER INCORPORATING THE SAME

ARC FAULT DETECTOR IMMUNE TO DIMMER TRANSIENT CURRENT AND CIRCUIT BREAKER INCORPORATING THE SAME

PROBLEM TO BE SOLVED: To provide an arc fault detector not responding to step increases in a current by detecting the step increases in the current caused by a dimmer for a low temperature tungsten bulb generating high transient current when power is turned on. SOLUTION: The arc fault detector pursu...

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Bibliographische Detailangaben
Hauptverfasser: SCHMALZ STEVEN CHRISTOPHER, ZUERCHER JOSEPH CHARLES
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an arc fault detector not responding to step increases in a current by detecting the step increases in the current caused by a dimmer for a low temperature tungsten bulb generating high transient current when power is turned on. SOLUTION: The arc fault detector pursues pulse signals generated in response to the step increases in he current. If the pulse signals remain within the predetermined margin (between 1 and 3 in Fig. 1), the dimmer transient current is identified and generation of an arc signal is prevented. COPYRIGHT: (C)2003,JPO