Study of Vacuum Arc Rotation Characteristics of Different Transverse Magnetic Field Contacts

被引：3
作者：
Yan, Chao [1 ]
Wang, Lijun [1 ]
Wang, Kai [1 ]
Wang, Hongda [1 ]
Shi, Weixin [1 ]
Jia, Shenli [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2021年 / 49卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Ignition; Magnetic resonance imaging; Lorentz covariance; Vacuum arcs; Magnetic separation; Anodes; Merging; Arc rotation; transverse magnetic field (TMF) contacts; vacuum arc; BEHAVIOR; EROSION; MODES;
D O I：
10.1109/TPS.2021.3072921
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
As a special phenomenon under transverse magnetic field (TMF) contacts, vacuum arc rotation deserves more attention. In this article, rotation characteristics of three typical TMF contacts, i.e., swastika-type, cup-shaped, and double-TMF contacts, are systematically studied. According to arc images, recorded by a high-speed camera, physical terms related to arc rotation such as rotation duration and rotation speed are clearly defined. The magnetic field and Lorentz force are calculated and the force balance of the moving arc is analyzed. On this basis, the effects of arc ignition mode, peak current, and contact type on arc rotation are investigated. Arc voltage noise as well as arc splashing outside caused by rotation is also discussed. The results show that the duration from ignition to rotation in two-point arc ignition (TPAI) mode is usually the shortest because of the rapidest constructed column formation. As the peak current increases, arc rotation becomes easier. Due to stronger TMF, the arc under double-TMF contacts has the longest rotation duration and the highest rotation speed.
引用
收藏
页码：2490 / 2497
页数：8
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