Circuit breaker unit
AssigneeSiemens Aktiengesellschaft
InventorsRadu-Marian Cernat, Volker Lehmann, Andrzej Nowakowski
Life of this patent
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Abstract
A power circuit breaker unit has first and second arcing contact pieces. A contact gap is formed between the arcing contact pieces. A switch gas channel of the circuit breaker unit joins the contact gap to the surrounding area of the circuit breaker unit for removing a switch gas from the contact gap. Several barriers that increase a flow resistance are arranged successively, spaced from one another, in the switch gas channel. At least one of the barriers is arranged between a first pipe section, which is surrounded by a second pipe section, and the second pipe section.
Claims7
1-6. (canceled)
A circuit breaker unit assembly, comprising:
- a first arcing contact piece and a second arcing contact piece and a contact gap formed between said first and second arcing contact pieces;
- a switching gas channel connecting said contact gap to an environment of the circuit breaker unit;
- a first pipe section and a second pipe section surrounding said first pipe section and forming at least a part of said switching gas channel;
- a plurality of barriers disposed to increase a flow resistance in said switching gas channel, said plurality of barriers including first and second barriers disposed successively at a spacing distance from one another within said switching gas channel, and at least one of said barriers being disposed between said first and second pipe sections.
Dependencies are inferred from the claim text.