Medium tension circuit breaker

Details Medium tension circuit breaker Medium tension circuit breaker

1990-08-07

1992-09-29

Pellinen, A. D.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148B, 200148R, 200148BV, 200150G, H01H 3388

Patent

active

051515652

ABSTRACT:
A medium tension circuit breaker comprising a casing of insulating material enclosing a gas having good dielectric properties and containing the following: first contacts connected to a first current terminal and second contacts connected to a second current terminal; a fixed arcing contact electrically connected to the first current terminal and a moving arcing contact fixed to a connecting rod mechanically connected to a drive member; and a moving permanent contact fixed to the moving arcing contact and providing an electrical connection between the first and second contacts when the circuit breaker is in the engaged position. The moving permanent contact is a short tubular part with the first and second contacts being disposed respectively on two circular arcs.

REFERENCES:
patent: 3399286 (1968-08-01), Kerr, Jr.
patent: 3408468 (1968-10-01), Carter
patent: 3555225 (1971-01-01), Saffold
patent: 4123636 (1978-10-01), Cromer et al.
patent: 4139753 (1979-02-01), Cromer et al.
patent: 4736079 (1988-04-01), Soboul et al.

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