The Influence of Contact Space on Arc Commutation Process in Air Circuit Breaker

被引：0
|
作者：
纽春萍 [1 ]
丁炬文 [1 ]
杨飞 [1 ]
董得龙 [1 ]
荣命哲 [1 ]
徐丹 [1 ]
机构：
[1] State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University
来源：
Plasma Science and Technology | 2016年 / 05期
基金：
中国国家自然科学基金; 国家重点基础研究发展计划（973计划）;
关键词：
air circuit breaker; arc simulation; arc commutation; arc chamber;
D O I：
暂无
中图分类号：
TM561 [断路器];
学科分类号：
080801 ;
摘要：
In this paper,a 3D magneto-hydrodynamic(MHD) arc simulation model is applied to analyze the arc motion during current interruption in a certain air circuit breaker(ACB).The distributions of pressure,temperature,gas flow and current density of the arc plasma in the arc region are calculated,and the factors influencing the commutation process are analyzed according to the calculated results.Based on the airflow in the arc chamber,the causes of arc commutation asynchrony and the back commutation are investigated.It indicates that a reasonable contact space design is crucial to a successful arc commutation process.To verify the simulation results,the influence of contact space on arc voltage and arc commutation is tested.This research can provide methods and references to the optimization of ACB design.
引用
收藏
页码：460 / 464
页数：5
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