Electromagnetic structure for a circuit breaker

Details Electromagnetic structure for a circuit breaker Electromagnetic structure for a circuit breaker

1986-09-10

1987-06-23

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 43, H01H 7512, H01H 7508

Patent

active

046756353

ABSTRACT:
A circuit breaker has a bimetallic element and an electromagnetic element. The bimetallic element has one end connected to the line terminal and the other end connected to the pigtail connector. A shunt is connected at one end to the pigtail connector and has a contact on the other end matable with the line terminal contact. The shunt is connected at one end to the pigtail connector immobilizing the pigtail so that it does not interfere with the operation of the bimetallic element. The electromagnet is positioned about the bimetallic element and has an armature which is movable to trip the circuit breaker. The shunt element has a spring connected which biases the armature away from the electromagnet.

REFERENCES:
patent: 3005066 (1961-10-01), Powell
patent: 4187482 (1980-02-01), Kosup

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