Arc fault circuit detector having two arc fault detection...

Details Arc fault circuit detector having two arc fault detection... Arc fault circuit detector having two arc fault detection...

2005-12-06

2005-12-06

Leja, Ronald (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

Reexamination Certificate

active

06972937

ABSTRACT:
The present invention is directed to an arc fault protective device that includes a sensor configured to generate a sensor signal in response to an electrical current signal propagating in an electrical distribution system. A level detection circuit is coupled to the electrical distribution system. The level detection circuit is configured to generate a first level detection signal if a magnitude of the electrical current signal is between a first predetermined threshold level and a second predetermined threshold level. The level detection circuit also is configured to generate a second level detection signal if a magnitude of the electrical current signal is greater than the second predetermined threshold level. An arc detection circuit is coupled to the sensor and the level detection circuit. The arc detection circuit is configured to compare the sensor signal to a first arc fault signature and a second arc fault signature. The arc detection circuit is configured to provide an arc detection signal in response to the first level detection signal if the sensor signal corresponds to the first arc fault signature. The arc detection circuit also is configured to provide an arc detection signal in response to the second level detection signal if the sensor signal corresponds to the second arc fault signature. A response mechanism is coupled to the arc detection circuit, the response mechanism being responsive to the arc detection signal.

REFERENCES:
patent: 5307230 (1994-04-01), MacKenzie
patent: 5729145 (1998-03-01), Blades
patent: 5835321 (1998-11-01), Elms et al.
patent: 6246556 (2001-06-01), Haun et al.
patent: 6373257 (2002-04-01), Macbeth et al.
patent: 6377427 (2002-04-01), Haun et al.
patent: 6414829 (2002-07-01), Haun et al.
patent: 6625550 (2003-09-01), Scott et al.
patent: 6798628 (2004-09-01), Macbeth
patent: 6839208 (2005-01-01), Macbeth et al.
patent: 2003/0072113 (2003-04-01), Wong et al.
patent: 2004/0066593 (2004-04-01), Kolker et al.

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