Arc quenching arrangement for a gas flow circuit breaker
AssigneeSiemens Aktiengesellschaft
InventorsWalter Hertz, Jan Stroh
Life of this patent
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Abstract
In a quenching arrangement in a gas flow circuit breaker of the type which has at least one check valve in a flow channel leading through a portion of the insulating material to the quenching gap, at least one overflow channel having therein a pressure relief valve is installed parallel to the quenching gap to couple the higher pressure chamber in which the quenching gas is contained with the low pressure chamber to which gas discharges after quenching.
Claims9
An arrangement for quenching an arc in a gas flow circuit breaker such as a blasting piston circuit breaker in which a flow canal with a check valve is provided, the flow channel leading through an insulating part to a quenching gap, with quenching gas flowing from a high pressure chamber to a low pressure chamber across the quenching gap, wherein the improvement comprises an overflow channel establishing a path from the high pressure chamber to the low pressure chamber which parallels the path between these two chambers across the quenching gap, and a pressure relief valve in said overflow channel.
Dependencies are inferred from the claim text.