Arc fault detector and method for locating an arc fault

Details Arc fault detector and method for locating an arc fault Arc fault detector and method for locating an arc fault

G - Physics

01

R

G01R 31/327 (2006.01) G01R 31/02 (2006.01) H02H 1/00 (2006.01) H02H 3/04 (2006.01)

Patent

CA 2455083

A circuit breaker for locating an arc fault for a protected circuit includes separable contacts interrupting the protected circuit and an arc fault detector determining an arc fault in the protected circuit. An analog to digital converter circuit measures a value of peak arc current at the arc fault detector. Another analog to digital converter circuit provides a peak line-to-neutral voltage. A memory provides an arc voltage operatively associated with the value of peak current. A microprocessor determines a distance from the arc fault detector to the arc fault from the value of peak arc current, a wire resistance per unit length or a wire conductance per unit length, the peak line-to-neutral voltage and the arc voltage.

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