气流场驱动下栅片中弧压提升特性的数值分析

doi:10.19595/j.cnki.1000-6753.tces.L80312

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Abstract A3-D numerical analysis model for air arcs splitting by airflow field in air blowing chamber based on magneto hydro dynamics(MHD) was established. At present, air circuit breakers generally use magnetic field driving arc to enter ferromagnetic plates area and cut into short arcs. Compare with that, the application of air flow outside to drive arc movement was mainly studied. The insulation plate was also used to elongate and cool the air arc to increase the arc voltage. Based on the commercial software package ANSYS FLUENT, the numerical calculation of multi physical field coupling in air blow chamber was carried out in this paper. The motion and voltage changes of arc under different material plates were simulated and analyzed. The maximum arc voltage can be obtained with all insulated plates. The effects of plate spacing and inlet air pressure on the arc voltage rise of the blowout chamber were compared and analyzed. This work will provide some guidance for the research on the application of arc voltage rise in switching devices.

Key words： Magneto hydro dynamics(MHD) plate arc quenching airflow field arc voltage

Received: 01 July 2018 Published: 17 July 2019

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TM561

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	Zhang Ming
	Wang Yongxing
	Tian Yu
	Dong Enyuan
	Cong Yu

Cite this article:

Zhang Ming,Wang Yongxing,Tian Yu等. Numerical Analysis of Arc Voltage Increasing Characteristics in Plate Driven by Airflow Field[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2752-2759.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80312 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I13/2752

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