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Plasma Sci. Technol. ›› 2018, Vol. 20 ›› Issue (8): 085404.doi: 10.1088/2058-6272/aabf34

• Low Temperature Plasma • Previous Articles     Next Articles

Characteristic analysis of CO2 switching arcs under a DC current

Xiaoling ZHAO (赵小令)1, J D YAN2 and Dengming XIAO (肖登明)1   

  

  1. 1 Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200030, People’s Republic of China
    2 Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, United Kingdom
  • Received:2018-01-22 Published:2018-04-13
  • Supported by:

    This work is supported by National Natural Science Foundation of China (Grant No. 51337006).

Abstract:

The current interruption capability of a gas, when used in high voltage gas-blast circuit breakers, depends not only on its material properties but also the flow field since turbulence plays a dominant role in arc cooling during the interruption process. Based on available experimental results, a study of CO2 switching arcs under a DC (direct current) current in the model circuit breaker has been conducted to calibrate CO2 arc model and to analyse its electric and thermal property. Through detailed analysis of the results mechanisms responsible for the temperature distribution are identified and the domain energy transportation process of different region discussed. The present work provides significant coefficients for CO2 switching arc simulation and gives a better understanding of CO2 arc burning mechanisms.

Key words: energy transportation, thermal and electric property, CO2 switching arc