Flow structure near downstream electrode of a gas-blast circuit breaker

Quan Zhang; Jian Liu; Joseph D. Yan

doi:10.1109/TPS.2014.2309174

Flow structure near downstream electrode of a gas-blast circuit breaker

Quan Zhang^*, Jian Liu, Joseph D. Yan

^*Corresponding author for this work

University of Liverpool

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Flow structure near the downstream electrode, located in the supersonic region of a gas-blast circuit breaker interrupter, has been investigated. In the absence of the arc, a bow shock is formed in front of the tip of the downstream electrode. The presence of a 1-kA dc arc renders the flow in front of the electrode tip subsonic. The compression waves associated with the formation of flow stagnation point in the vicinity of the electrode tip are bunched together on the arc axis, forming a pressure distribution similar to a shock.

Original language	English
Article number	6766761
Pages (from-to)	2726-2727
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	42
Issue number	10
DOIs	https://doi.org/10.1109/TPS.2014.2309174
Publication status	Published - 1 Oct 2014
Externally published	Yes

Keywords

Flow structure
gas-blast circuit breaker
shock
switching arc.

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10.1109/TPS.2014.2309174

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AB - Flow structure near the downstream electrode, located in the supersonic region of a gas-blast circuit breaker interrupter, has been investigated. In the absence of the arc, a bow shock is formed in front of the tip of the downstream electrode. The presence of a 1-kA dc arc renders the flow in front of the electrode tip subsonic. The compression waves associated with the formation of flow stagnation point in the vicinity of the electrode tip are bunched together on the arc axis, forming a pressure distribution similar to a shock.

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Flow structure near downstream electrode of a gas-blast circuit breaker

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Keywords

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