Circuit breaker having an electronic fault sensing and trip init

Details Circuit breaker having an electronic fault sensing and trip init Circuit breaker having an electronic fault sensing and trip init

1978-03-16

1980-07-15

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

H02H 308

Patent

active

042131650

ABSTRACT:
A circuit breaker having an electronic fault sensing and trip initiating unit which provides increased versatility and ability to coordinate the circuit breaker with other interrupting and protective devices in a wide variety of electrical distribution systems. Electronic circuits and components are provided to vary the ampere rating of the breaker, to adjust current carrying capacity, to provide a long time delay trip, a short time delay trip and an instantaneous trip depending on the amplitude of high fault currents, to provide a ground fault trip, to shorten or lengthen the trip time for short time delay faults and for ground faults, and to provide shunt trip capability. The tripping mechanism is magnetic and mechanical, and includes a plunger movable between a trip and non-trip position controlled by an electronic switch in the electronic circuitry, and a toggle mechanism which is unlatched by the plunger when it moves to the trip position. A bimetal strip mechanism is provided as back-up protection if the ambient temperature not sensed by the electronic circuitry exceeds a pre-determined level.

REFERENCES:
patent: 2934752 (1960-04-01), Arrasmith
patent: 3723818 (1973-03-01), Zocholl
patent: 4068283 (1978-01-01), Russell

Affiliated with

Also associated with

Rating

Circuit breaker having an electronic fault sensing and trip init 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 having an electronic fault sensing and trip init, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker having an electronic fault sensing and trip init will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-466804