Direction sensing arc detection
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United States of America Patent
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Feb 9, 1993
Grant Date -
N/A
app pub date -
Mar 28, 1991
filing date -
Mar 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30), the conductor having a line side extending from the arc detector to the voltage source, and a load side extending from the arc detector to the load. The arc detector includes a field sensor (62) sensing the electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generating a field responsive signal in response thereto. Direction sensing circuitry detects whether the arc is from the load side or the line side, and generates a direction indicative signal.
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