大开距条件下杯状纵磁触头间隙磁场特性  

Magnetic Field Characteristics of Cup-shaped Axial Magnetic Field Contact Under the Condition of Large Contact Gap

作　　者：杨金望 谭涛 修士新[1] 贾申利[1] 罗海洋 田志强 YANG Jinwang;TAN Tao;XIU Shixin;JIA Shenli;LUO Haiyang;TIAN Zhiqiang(School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Chengdu Xuguang Electronics Co.,Ltd.,Chengdu 610500,China)

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]成都旭光电子股份有限公司,成都610500

出　　处：《高电压技术》2023年第7期3125-3133,共9页High Voltage Engineering

基　　金：南方电网公司科技项目(080037KK52200020/GZHKJXM20200086)。

摘　　要：“碳达峰、碳中和”目标的提出使得高压真空灭弧室的研制与发展受到广泛的关注与重视。为此,通过增大杯壁开槽旋转角的方式探究了6槽杯状纵磁触头在高压真空灭弧室中应用的可能性。研究结果表明:增大开槽旋转角是大开距下增强6槽杯状纵磁触头间隙纵向磁场的有效手段;适当地增大触头杯高和杯壁厚度不仅会使得触头电阻明显下降,也使得开槽旋转角进一步增大,从而使得纵向磁场得以继续增强;支撑件的添加可以使具有较大开槽旋转角的触头结构强度明显增加,而间隙纵向磁场的下降并不明显。论文研究结果可以为杯状纵磁触头在高压真空灭弧室中的实际应用提供借鉴与参考。The goal of“emission peak and carbon neutrality”has stimulated an extensive interest in the research and development of high-voltage vacuum interrupters.In this paper,the possibility of applying the six-slot cup-shaped axial magnetic field(AMF)contact in the high-voltage vacuum interrupter is explored by increasing the slotted rotation angle on the cup wall.The results show that increasing the slotted rotation angle is an effective means to enhance the AMF of the gap of the six-slot cup-shaped AMF contact at a large gap.What’s more,properly increasing the contact cup height and thickness not only leads to a significant decrease in the contact resistance,but also enables the slotted rotation angle to be further increased,which means that the AMF can continue to be strengthened.Finally,the addition of supports can obviously increase the strength of the contact structure with a larger slotted rotation angle,and the decrease of the AMF of the contact gap is not obvious.Overall,the research results of this paper can provide reference for the practical application of the cup-shaped AMF contact in the high-voltage vacuum interrupter.

关 键 词：纵向磁场 杯状纵磁触头 高压真空灭弧室触头 触头结构参数改进 真空电弧 

分 类 号：TM561[电气工程—电器]