Sulfur hexafluoride circuit-breaker for operating in a very low

Details Sulfur hexafluoride circuit-breaker for operating in a very low Sulfur hexafluoride circuit-breaker for operating in a very low

1987-01-29

1987-12-08

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150G, 200146R, H01H 3388

Patent

active

047119780

ABSTRACT:
A sulfur hexafluoride circuit-breaker for operating in a very low temperature environment, the circuit-breaker being of the type comprising a sealed enclosure filled with sulfur hexafluoride and closed by first and second end plates, a set of fixed contacts, a set of moving contacts driven by an operating rod, a blast volume which is mechanically compressed when the operating rod is displaced to open the circuit-breaker, and blast nozzle for directing the said compressed gas from said volume onto the arc, the circuit-breaker including the improvement of means for creating an arc in said blast volume during a portion of the time that the moving assembly is moving, by diverting the current to be interrupted so that it flows through two parts constituting two electrodes.

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