Simulation of Vacuum Arc Characteristics Under Four Kinds of Axial Magnetic Fields and Comparison with Experimental Results

被引：0
|
作者：
张玲 [1 ]
贾申利 [1 ]
王立军 [1 ]
史宗谦 [1 ]
机构：
[1] State Key Laboratory of Electrical Insulation and Power Equipment,Xian Jiaotong University
来源：
Plasma Science and Technology | 2011年 / 04期
基金：
国家教育部博士点专项基金资助; 中国国家自然科学基金;
关键词：
vacuum arc; AMF; MHD; simulation;
D O I：
暂无
中图分类号：
TM501.2 [];
学科分类号：
080801 ;
摘要：
Based on a two-dimensional axisymmetric magnetohydrodynamic(MHD)model,the vacuum arc characteristics under four kinds of axial magnetic fields(AMFs)are analyzed,which include a bell-shaped AMF generated by a pair of commercial cup-shaped electrodes,andthree kinds of saddle-shaped ones generated by three pairs of newly designed electrodes.Thesimulation result indicates that the effect of AMF on the vacuum arc characteristics is significant.A comparison between the simulation result and experimental one shows that the distribution ofthe simulated ion density integrated along the viewing path is in agreement with the image ofthe arc column.Both the simulation result and the experimental one show that,among the fourkinds of AMFs,the saddle-shaped one with the highest strength is the best,which could resistthe constriction of the vacuum arc more efficiently,while the saddle-shaped one with the loweststrength and the bell-shaped one are the least desirable.
引用
收藏
页码：462 / 469
页数：8
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