Direction sensing arc detection

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection

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Details

361 87, 361 93, 361111, 324522, 324536, H02H 332, G01R 3108

Patent

active

051856867

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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