Low arc AC contactor

Details Low arc AC contactor Low arc AC contactor

2007-08-28

2007-08-28

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

C361S042000

Reexamination Certificate

active

11011429

ABSTRACT:
A low arc AC contactor comprises an on/off mechanism electromagnetic-controlled contact, a pulse power source generating circuit, a low arc trigger generating circuit, and a multifunctional fault-detecting circuit. The contactor converts an instantaneous strong current into strong pulse magnetic field energy to actuate contacts of mechanical portion of the contactor, so that the power source load is on or off. Each of the actuating process will be controlled by the electric circuit to perform at the lowest potential of AC voltage for reducing arc's destructive power. Moreover, the contactor uses photoelectric coupling circuits, in which it can be controlled by external low voltage signal commands, as well as providing protection from overload, phase loss, short circuit, and leakage current.

REFERENCES:
patent: 4847725 (1989-07-01), Ishii
patent: 5170309 (1992-12-01), Ishii et al.
patent: 7173799 (2007-02-01), Weeks et al.
patent: 89213805.X (1990-02-01), None
patent: 93221093.7 (1994-05-01), None
patent: 05-022840 (1993-01-01), None
patent: 05-334952 (1993-12-01), None

Affiliated with

Also associated with

Rating

Low arc AC contactor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low arc AC contactor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low arc AC contactor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3900328