不同旋气槽数对SF<sub>6</sub>断路器三维气流场影响

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Abstract A novel chamber structure with rotary-gas grooves in the nozzle upstream is presented, which the traditional axial blowing arc is changed to rotary blowing arc. In this paper, 110kV SF₆ circuit breaker is taken as the investigation model. Using finite volume method, the gas flow field of SF₆ circuit breaker with different sturctures is calculated and the influence of the Rotary-gas groove structure on flow field is studied. The simulation results present that SF₆ circuit breaker with Rotary-gas grooves has strong arc extinguishing capacity. In addition, keeping the flow in arc-quenching chamber unchanged and changing the numbers of the Rotary-gas grooves, it achieves the influencing rules of the velocity distribution. The theoretical basis for further studying the design of novel SF₆ circuit breaker with Rotary-gas grooves is provided.

Key words： SF circuit breaker flow field rotary-gas groove arc extinguishing capacity

Received: 30 June 2009 Published: 04 March 2014

PACS:

TM561.3

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	Articles by authors
	Cao Yundong
	Liu Yang
	Liu Xiaoming
	Wang Erzhi
	Fu Si

Cite this article:

Cao Yundong,Liu Yang,Liu Xiaoming等. Influence on 3-D Flow Field for SF₆ Circuit Breaker With Different Numbers of Rotary-Gas Grooves[J]. Transactions of China Electrotechnical Society, 2010, 25(9): 74-79.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I9/74

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