Current limiter unit

Details Current limiter unit Current limiter unit

1982-08-27

1984-11-27

Pellinen, A. D.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144AP, 200149A, 335195, H01H 930

Patent

active

044852835

ABSTRACT:
A current limiter unit employs both a magnetic repulsion field and a gas pressure force to direct arcs to within the high voltage region of an arc chute. The unit confines the evolved gas pressure in all directions except in the direction of the arc plates. Venting the opposite end of the arc chute rapidly motivates the arc through the arc plates and out of the unit. Venting the sides of the arc chute reduces the back pressure produced by arc gases as well as the pressure exerted upon the heated breaker casing. The combination of magnetic and directed gas repulsion substantilly reduces the I.sup.2 t value of the unit. A parallel positive temperature coefficient impedance can be connected across the arc to reduce the arc current to a low enough value so that the arc becomes extinguished within a predetermined period of time.

REFERENCES:
patent: 3515829 (1970-06-01), Hurtle et al.
patent: 4019006 (1977-04-01), Strossner
patent: 4071836 (1978-01-01), Cook et al.
patent: 4259651 (1981-03-01), Yamat
patent: 4375021 (1983-02-01), Pardini et al.

Affiliated with

Also associated with

Rating

Current limiter unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2135839