Circuit breaker

Details Circuit breaker Circuit breaker

1983-12-07

1985-10-29

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 13, 361 11, H02H 722

Patent

active

045503567

ABSTRACT:
Disclosed is a circuit breaker comprising an interruptor including a main contact and a series circuit connected in parallel to the main contact and constituted by a breaking resistor and a resistor contact; and an actuator device for performing closing to opening operations of the main contact and the resistor contact; in which the breaking resistor includes a first resistor element and a second resistor element having a resistance value which is smaller than that of the first resistor element; and in which a switching circuit is provided for automatically changing the connection of the first and second resistor elements such that in small capacitive current breaking, an equivalent resistance of the first and second resistor element becomes a large value suitable for the small current breaking, while in short-circuit current breaking, the resultant equivalent resistance becomes a small value for the short-circuit current breaking mainly owing to the resistance value of said second resistor element.

REFERENCES:
patent: 3534226 (1970-10-01), Lian
patent: 3538277 (1970-11-01), Phillips
patent: 3566152 (1971-02-01), Casey et al.
patent: 4347539 (1982-08-01), Peterson et al.

Affiliated with

Also associated with

Rating

Circuit breaker does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-731023