Gas flow characteristics analysis of SF(6) circuit breaker using similarity theory
Liying Li, Hai Chen, Yaqian Zhang and 2 more
The Journal of Engineering · 2019
doi:10.1049/joe.2018.8677 (opens in a new tab)
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Abstract
In this paper, the gas flow model of high voltage SF(6) circuit breaker arc quenching chamber was established to analyse the nozzle high speed gas flow variation characteristics using finite volume method, and k-ɛ turbulent equation combined with the wall function was analysed. According to the similarity theory, the similarity criteria and the equivalent model for the arc quenching chamber was established and simulated for reflecting the aerodynamic behavior under cold gas flow interruption condition.
Abstract licence: CC BY-ND
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