Characteristic of Wan-type Transverse Magnetic Field Contacts of Vacuum Circuit Breaker

DUAN Xiaoli; XIU Shixin; WU Shuifeng; FENG Dingyu; YE Huisheng; LI Quan

doi:10.13296/j.1001-1609.hva.2017.03.009

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Characteristic of Wan-type Transverse Magnetic Field Contacts of Vacuum Circuit Breaker

更新时间：2025-04-26

- Characteristic of Wan-type Transverse Magnetic Field Contacts of Vacuum Circuit Breaker
- High VoltageApparatus Vol. 53, Issue 3, Pages: 57-63(2017)
- 作者机构：
  
  1. 国网湖南省电力公司电力科学研究院
  2. 西安交通大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.03.009
  CLC： TM564
- Published：2017
- 稿件说明：
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[1]段肖力,修士新,吴水锋,冯顶瑜,叶会生,李泉.真空开关横磁触头磁场仿真与电弧特性研究[J].高压电器,2017,53(03):57-63.

DUAN Xiaoli, XIU Shixin, WU Shuifeng, et al. Characteristic of Wan-type Transverse Magnetic Field Contacts of Vacuum Circuit Breaker[J]. High voltageapparatus, 2017, 53(3): 57-63.
[1]段肖力,修士新,吴水锋,冯顶瑜,叶会生,李泉.真空开关横磁触头磁场仿真与电弧特性研究[J].高压电器,2017,53(03):57-63. DOI： 10.13296/j.1001-1609.hva.2017.03.009.

DUAN Xiaoli, XIU Shixin, WU Shuifeng, et al. Characteristic of Wan-type Transverse Magnetic Field Contacts of Vacuum Circuit Breaker[J]. High voltageapparatus, 2017, 53(3): 57-63. DOI： 10.13296/j.1001-1609.hva.2017.03.009.

摘要

真空开关具有开断能力大、可靠性高、体积小及对周围环境无污染等优点

已经广泛应用于中压领域

文中针对国内真空开关发展的现状和实际需求

对万字型横磁触头真空电弧在电弧跨越触头槽隙过程的特性进行仿真分析和实验研究。首先建立了万字型横磁触头的三维有限元模型

计算了触头间隙磁场的分布以及弧柱所受磁吹力情况

特别分析了越过触头槽隙的过程中磁场和磁吹力的变化规律

并计算了槽隙宽度对磁场以及磁吹力的影响;并且采用高速摄影机通过实验研究了电弧越过触头槽隙过程中电弧形态特点以及不同槽隙宽度对电弧特性的影响。仿真和实验的结果表明

弧柱在运动到触头槽隙时更倾向于沿槽隙运动而非跨槽;同时

槽隙宽度在一定范围内减小可以减小槽隙对电弧运动所带来的不利影响。

Abstract

Considering the development of vacuum circuit breakers in China and the actual demand

numerical simulation and experimental research were conducted to investigate the characteristic of vacuum arc of the Wan-type transverse magnetic field contacts during the arc crossing a slot. 3D finite element models were built

the magnetic field distribution between the contacts and the magnetic blow force on arc column were calculated

and the variations of magnetic field distribution and magnetic blow force during arc traveling along the contact arms or across the slot were analyzed. As a result

the influences of the width of slot on the electric field distribution and the magnetic blow force were obtained. Then

experiment with CCD high-speed camera was conducted to investigate the features of arc pattern during the arc passing through the slot and the influence of slot width on arc characteristic. The results showed that the arc tended to move along the slot rather than across it

and the decrease of slot width to some extent could reduce the negative influence of slot on arc motion.

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