Arc flash elimination apparatus and method

Details Arc flash elimination apparatus and method Arc flash elimination apparatus and method

2007-03-30

2010-10-26

Fureman, Jared J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

C361S003000, C361S005000, C361S006000, C361S067000

Reexamination Certificate

active

07821749

ABSTRACT:
An arc crowbar with electrodes separated by a gap in a protective case. Each electrode is connected to an electrically different conductor of a circuit. A sensor detects an arc flash condition on the circuit and signals a trigger circuit to send an electrical pulse to an arc-triggering device in the arc crowbar gap. The triggering device ionizes a portion of the gas between the electrodes, initiating a protective arc between the electrodes that absorbs energy from the power circuit and trips a breaker, eliminating the arc flash condition. The triggering device may be a plasma gun, especially one that injects plasma of an ablated material into the gap. The sensor may signal a circuit breaker to open in the power circuit. Arc flash sensor types may include a differential current sensor and/or an optical sensor.

REFERENCES:
patent: 3575680 (1971-04-01), Beaudoin et al.
patent: 3588578 (1971-06-01), Clinkenbeard
patent: 3997235 (1976-12-01), Boliver
patent: 4259704 (1981-03-01), Hamann
patent: 4289941 (1981-09-01), Cannon
patent: 4347414 (1982-08-01), Headley et al.
patent: 4369364 (1983-01-01), Kuntermann
patent: 4409447 (1983-10-01), Noeske
patent: 4431946 (1984-02-01), O'Loughlin
patent: 4645889 (1987-02-01), Howell
patent: 5231242 (1993-07-01), Chryssomallis et al.
patent: 5650902 (1997-07-01), Holger
patent: 5905244 (1999-05-01), Smith et al.
patent: 5933308 (1999-08-01), Garzon et al.
patent: 6128168 (2000-10-01), Arnold et al.
patent: 6141192 (2000-10-01), Garzon
patent: 6207916 (2001-03-01), Pniok et al.
patent: 6232857 (2001-05-01), Mason, Jr. et al.
patent: 6242707 (2001-06-01), Mody et al.
patent: 6417671 (2002-07-01), Tiemann
patent: 6433976 (2002-08-01), Phillips
patent: 6532140 (2003-03-01), McMahon et al.
patent: 6633009 (2003-10-01), Shea
patent: 6657150 (2003-12-01), Shea et al.
patent: 6683764 (2004-01-01), Pniok
patent: 6751528 (2004-06-01), Dougherty
patent: 6839209 (2005-01-01), Shea et al.
patent: 6952332 (2005-10-01), Slade et al.
patent: 7062388 (2006-06-01), Rivers, Jr. et al.
patent: 2003/0231443 (2003-12-01), Shea et al.
patent: 2003/0231453 (2003-12-01), Shea
patent: 4236623 (1994-05-01), None
patent: 688071 (1999-08-01), None
patent: 771057 (2000-09-01), None
patent: 04255421 (1992-09-01), None
patent: 04289721 (1992-10-01), None
patent: 05003611 (1993-01-01), None
patent: WO 9522167 (1995-08-01), None
patent: WO 9835237 (1998-08-01), None
patent: WO 9921254 (1999-04-01), None
patent: WO 9921255 (1999-04-01), None
patent: WO 2005036709 (2005-04-01), None
Pulsed Power. Mesyats. Dec. 21, 2007.
Publication Titled: Bypass Gap, by GE Transmission, Distribution & Industrial Systems, regarding Series Compensation Systems, dated Nov. 14, 1999.

Affiliated with

Also associated with

Rating

Arc flash elimination apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arc flash elimination apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc flash elimination apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4187616