Arc fault detector

Details Arc fault detector Arc fault detector

2007-02-20

2007-02-20

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of ground fault indication

C324S536000

Reexamination Certificate

active

11292709

ABSTRACT:
An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have a series connected inductor on each of multiple conductors of a power distribution network for phase
eutral or multi-phase arc detection.

REFERENCES:
patent: 6937027 (2005-08-01), Koo et al.

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