Arc quenching arrangement
AssigneeSiemens Aktiengesellschaft
InventorWalter Hertz
Life of this patent
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Abstract
An arrangement for quenching an arc in a gas-flow circuit breaker in which at least one check valve is arranged in a flow canal leading through a portion of the insulating material to the quenching gap, the check valve insuring that a reverse flow from the quenching gap into the inlet canals of the quenching gas is prevented.
Claims7
In a gas-flow circuit breaker, such as a blast piston breaker, in which gas is directed from a space of higher pressure to the vicinity of a quenching gap, said breaker including a fixed contact and a movable contact which when separated from an arc in said quenching gap, an improved arrangement for quenching and arc in said gap comprising:
- a. insulating material arranged to form a plurality of flow canals to direct the flow of gas from the space of higher pressure onto the quenching gap, said flow canals being evenly spaced concentric to said quenching gap;
- and
- b. a check valve in each of said canals arranged to permit flow only from the space of higher pressure toward said quenching gap.
Dependencies are inferred from the claim text.