Circuit interrupter

Details Circuit interrupter Circuit interrupter

1980-11-06

1982-04-13

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 16, 335201, H01H 7500, H01H 7700, H01H 8300

Patent

active

043250416

ABSTRACT:
The disclosed circuit interrupter comprises a magnetic core structure including a magnetic core and magnetic yokes defining an annular magnetic gap around the core, and a primary and a secondary coil wound on the core to form a current transformer. The movable contact arm is disposed in the magnetic gap to be magnetically driven to the open position, and a magnetic armature of an instantaneous trip means is disposed adjacent to the magnetic yokes so that it is magnetically actuated upon a short-circuit current. A bimetallic element of a thermally responsive trip means is electrically connected to the secondary coil of the transformer. The magnetic yokes include extended portions which serve as magnetic means for driving an electric arc established between the separated contacts into an arc extinguisher which is also disposed between the magnetic yokes.

REFERENCES:
patent: 3104297 (1963-09-01), Powell et al.
patent: 3815059 (1974-06-01), Spoelman
patent: 3943316 (1976-03-01), Oster
patent: 3943472 (1976-03-01), Oster et al.
patent: 3943473 (1976-03-01), Khalid
patent: 3944953 (1976-03-01), Oster
patent: 3946346 (1976-03-01), Oster et al.
patent: 3956723 (1976-05-01), Dickens et al.
patent: 4090156 (1978-05-01), Gryctko

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1419300