Current limiting shunt for current limiting circuit breakers

Details Current limiting shunt for current limiting circuit breakers Current limiting shunt for current limiting circuit breakers

1997-03-04

1999-01-12

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 3, 337 15, 361103, H01H 930

Patent

active

058595783

ABSTRACT:
A compact current limiting circuit breaker is equipped with a current limiting shunt for effective over-current circuit interruption. The circuit breaker trip unit responds to long time, short time and instantaneous over-current conditions by opening a set of contacts to isolate the protected circuit. Upon contact separation an arc is drawn, with the endpoints of the arc being initially rooted on the pair of open contacts. Further opening of the contacts commutates the arc into the current limiting shunt to redirect the current away from the trip unit and suppress the arcing current until the circuit breaker contacts are sufficiently open to isolate the protected circuit.

REFERENCES:
patent: 3046371 (1962-07-01), Jencks
patent: 3548358 (1970-12-01), Klein
patent: 4513268 (1985-04-01), Seymour et al.
patent: 4573259 (1986-03-01), Seymour et al.
patent: 4749829 (1988-06-01), Ikeda et al.
patent: 4970481 (1990-11-01), Arnold et al.
patent: 5530613 (1996-06-01), Bauer et al.
patent: 5667711 (1997-09-01), Mody et al.
D. Arnold, et al., Circuit Breaker Current Limiting Arc Runner, Filed: 10 Feb. 1987, Docket No. 41PR-7400.

Affiliated with

Also associated with

Rating

Current limiting shunt for current limiting circuit breakers 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 limiting shunt for current limiting circuit breakers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current limiting shunt for current limiting circuit breakers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1520126