Circuit for preventing malfunction of arc fault detection...

Details Circuit for preventing malfunction of arc fault detection... Circuit for preventing malfunction of arc fault detection...

2006-02-09

2008-10-28

Sherry, Michael J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

Reexamination Certificate

active

07443644

ABSTRACT:
Disclosed herein is a circuit for preventing a malfunction of an arc fault detection device for determining whether an arc fault occurs through a low-current route or a high-current route, classified according to the magnitude of load current, using a source voltage applied to a conductor, which sets an operational prohibition range so as to prevent the malfunction of determining a pseudo-arc signal attributable to various combinations of loads to be an actual arc signal and interrupting a circuit, thus being capable of more precisely controlling the detection of the arc signal.

REFERENCES:
patent: 6556397 (2003-04-01), Kim et al.
patent: 6999289 (2006-02-01), Macbeth et al.
patent: 7282924 (2007-10-01), Wittner
patent: 2004/0263183 (2004-12-01), Naidu et al.
patent: 10-2004-59272 (2004-11-01), None

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