Arc fault detector
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United States of America Patent
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Feb 20, 2007
Issued Date -
N/A
app pub date -
Dec 1, 2005
filing date -
Dec 22, 2003
priority date (Note) -
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Abstract
An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have a series connected inductor on each of multiple conductors of a power distribution network for phase/neutral or multi-phase arc detection.
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