Differential arc fault detection

Details Differential arc fault detection Differential arc fault detection

2006-11-30

2009-02-10

Nguyen, Vincent Q (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S522000, C361S042000

Reexamination Certificate

active

07489138

ABSTRACT:
A method and apparatus detect arc faults. The method and apparatus may digitally detect current and voltage signals at a master node (111) positioned at a first point in a wiring system (131). At a second point in the wiring system (131), a slave node (122) may digitally detect current and voltage signals. An arc fault that develops between the first and second points in the wiring system (131) may be detected by comparing the current signals from the master node (111) and from the slave node (122), and comparing the voltage signals from the master node (111) and from the slave node (122).

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