Shunt effect low voltage circuit breaker

Details Shunt effect low voltage circuit breaker Shunt effect low voltage circuit breaker

1986-05-20

1987-09-22

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 2, 200144R, H01H 938, H01H 940

Patent

active

046959130

ABSTRACT:
A circuit breaker, notably breaking the phase and neutral circuit, contains a shunt circuit, constituted by a switching electrode disposed in proximity to the phase contacts to pick up an arc drawn between these contacts, when opening occurs on a short-circuit. Transferring the arc onto the switching electrode closes a shunt circuit, creating an internal short-circuit protecting the cables and receivers downstream from the circuit breaker. The shunt circuit is broken when the arc is blown out in the arc chute. Fast shifting of the arc protects the contact surfaces, notably of the neutral contacts, enabling these contacts to be used for an impulse relay or remote-controlled contactor function.

REFERENCES:
patent: 2924752 (1960-02-01), Scott, Jr.
patent: 4314300 (1982-02-01), Griffith

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