Investigation of Vacuum Arc Voltage Characteristics Under Different Axial Magnetic Field Profiles

JIA Shenli; SONG Xiaochuan; HUO Xintao; SHI Zongqian; WANG Lijun

Plasma Science and Technology > 2010 > 12(6): 729-733.

JIA Shenli, SONG Xiaochuan, HUO Xintao, SHI Zongqian, WANG Lijun. Investigation of Vacuum Arc Voltage Characteristics Under Different Axial Magnetic Field Profiles[J]. Plasma Science and Technology, 2010, 12(6): 729-733.

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Investigation of Vacuum Arc Voltage Characteristics Under Different Axial Magnetic Field Profiles

The State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China

Funds: supported by National Natural Science Foundation of China (Nos. 50907045 and 50707022), and the Doctoral Fund of the Ministry of Education of China (Nos. 200806981052 and 20090201110015).

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Abstract

Abstract

Characteristics of the arc voltage under different profiles of axial magnetic field were investigated experimentally in a detachable vacuum chamber with five pairs of specially designed electrodes generating both bell-shaped and saddle-shaped mafnetic field profile. The arc column and cathode spot images were photographed by a high speed digital camera. The dependence of the arc voltage on arcing evolution is analyzed. It is indicated that the axial magnetic field profile could affect the arc behaviors significantly, and the arc voltage is closely related to the arc light intensity.
- vacuum arc,
- axial magnetic field,
- arc voltage,
- light intensity

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