Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker

WANG Qian; QU Jianyu; LI Xingwen

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Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker

更新时间：2025-12-08

- Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker
- Vol. 43, Issue 3, Pages: 845-850(2017)
- 作者机构：
  
  1. 西安理工大学理学院
  2. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 March 2017，
  
  Published：2017
- 稿件说明：
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WANG Qian, QU Jianyu, LI Xingwen. Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker[J]. 2017, 43(3): 845-850.
DOI：

WANG Qian, QU Jianyu, LI Xingwen. Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker[J]. 2017, 43(3): 845-850. DOI：

摘要

合理的引弧板设计可以大幅度提升限流型断路器的开断性能。为此

针对桥式双断点断路器

对比分析了U形槽引弧板的U形槽位置和大小等对灭弧性能的影响。首先

设计了一个带卡住机构的桥式双断点断路器可拆式灭弧室样机

并通过3维有限元电磁仿真和多体动力学分析验证了样机的可行性。然后利用设计的实验样机

通过对比开断波形和开断特性参数

重点研究了3种不同引弧板结构对灭弧性能的影响。研究结果表明:在引弧板上增加U形槽可以增大动导电杆的电动斥力

且较大的U形槽作用更加明显;U形槽的引弧板有利于电弧拉长及进入栅片

增加U形槽后

电弧电压峰值提高了15 V

但是U形槽嵌入栅片容易造成弧根进入栅片后又重新转移到动导电杆上

不利于电弧在栅片中稳定燃烧。研究结果可为断路器的设计提供参考。

Abstract

For current-limiting circuit breakers

a well-designed arc plate can improve the interruption performances.Therefore

we investigate the influences of U-shape arc plate and its position as well as size on the arc-quenching performance.Firstly

a detachable bridge-shape double-break arc quenching chamber with a seizure configuration is designed

and the feasibility of the chamber prototype is invalidated based on the three-dimensional finite element method and multi-dynamic analysis.Then

the influences of three types of arc plates on the interruption performance are investigated via waveforms and key parameters of interruption.The results show that the U-type arc plate can increase the contact repulsion force and lengthen the arc.The effect is enhanced by the enlarged arc plated

and the peak voltage of the arc is increased by 15 V after the add of U-type plate.However

the back-restrike may occur when the U-type arc plate reaches the arc chutes

which is unfavourable for breaking the short current.The research results can provide a reference for the design of circuit breakers.

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