Compressed gas, high tension circuit breaker, with operating ene

Details Compressed gas, high tension circuit breaker, with operating ene Compressed gas, high tension circuit breaker, with operating ene

1986-01-13

1987-03-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, H01H 3388

Patent

active

046509410

ABSTRACT:
The invention relates to a compressed gas high tension circuit breaker in which the energy required for operation is assisted by the thermal effect of the arc, the circuit breaker comprising fixed main contacts and fixed arcing contacts, a moving assembly comprising moving main contacts and moving arcing contacts, a blast nozzle, and a thermal volume in which the gas pressure increases under the effect of heating due to the arc which extends between the arcing contacts when the separate, the circuit breaker including the improvement of means for responding to the pressure existing in said thermal volume (3, 35) to exert a greater force on the moving assembly (9) than the forces exerted thereon due to its resistance to movement, said means including a differential piston arrangement.

REFERENCES:
patent: 4163131 (1979-07-01), Perkins
patent: 4219711 (1980-08-01), McConnell
patent: 4450330 (1984-05-01), Zuckler
patent: 4486632 (1984-12-01), Niemeyer et al.

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