Arc characteristics during the instability stage on transverse magnetic field contacts

Xianhai PANG (庞先海); Zixi LIU (刘紫熹); Shixin XIU (修士新); Dingyu FENG (冯顶瑜)

doi:10.1088/2058-6272/aac50a

Plasma Science and Technology > 2018 > 20(9): 95505-095505. > DOI: 10.1088/2058-6272/aac50a

Xianhai PANG (庞先海), Zixi LIU (刘紫熹), Shixin XIU (修士新), Dingyu FENG (冯顶瑜). Arc characteristics during the instability stage on transverse magnetic field contacts[J]. Plasma Science and Technology, 2018, 20(9): 95505-095505. DOI: 10.1088/2058-6272/aac50a

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Arc characteristics during the instability stage on transverse magnetic field contacts

1 State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, People’s Republic of China 2 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China

Funds: This work was supported by National Natural Science Foundation of China (Grant No. 51777153).

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Received Date: January 31, 2018

Graphical Abstract

Abstract

Abstract

The arcing process greatly affects the breaking ability after current zero. The instability stage is the transition stage from the ignition to the movement stage, which affects the arc movement characteristics. In this paper, the arc characteristics during the instability stage on spiral-type contacts were investigated using a high-speed video camera. A multi-column parallel instability mode and a single-column instability mode were found during the instability stage. The arc appearance and constriction degree changed rapidly. The arc voltage usually increased accompanied by fluctuations. In addition, it was found that the current significantly influenced the arc mode and duration in the instability stage. With increased peak current, the probability of a single-column instability mode increased, and the fluctuation range and average time decreased.
- vacuum arc,
- transverse magnetic field (TMF) contact,
- instability stage,
- arc characteristic

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References (18)

References

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