SERIES ARC FAULT CURRENT INTERRUPTER APPARATUS
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United States of America Patent
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N/A
Issued Date -
Jul 2, 2009
app pub date -
Dec 28, 2007
filing date -
Dec 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A circuit interrupter for interrupting alternating current electrical signal on a line conductor of a circuit feeding a load, including: an electrical contact in operatively connected in series with the line conductor; a trip mechanism for selectively opening the electrical contact when activated; a current sensor connected in series with the line conductor for obtaining a sample alternating current electrical signal from the circuit feeding the load; a microprocessor in electrical communication with the trip mechanism and comprising a series arc fault detection program resident thereon; the series arc detection program comprising a discrete wavelet transform for determining the presence of a series arc fault current in the circuit feeding the load; wherein, when the discrete wavelet transform determines the presence of a series arc fault, the microprocessors signals the trip mechanism to activate and open the electrical contact in operatively connected in series with the line conductor.
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