船电技术2025，Vol.45Issue(8)：21-23,29,4.
直流断路器磁吹装置设计
Design of magnetic blowing device for DC circuit breaker
李明 1雷元 2高芳 3陈程1
作者信息
- 1. 武汉长海电气科技开发有限公司,武汉 430064
- 2. 武汉船用电力推进装置研究所,武汉 430064
- 3. 武汉船舶通信研究所,武汉 430205
- 折叠
摘要
Abstract
In the DC traction power supply system of rail transit,the DC circuit breaker often fails to interrupt the reverse small current due to the comm failure of the parallel excitation magnetic blowing device.To solve the problem of poor reliability of the parallel excitation magnetic blowing device,this paper proposes a series exc magnetic blowing device.In this paper,the simulation method is used to establish a simplified arc model,and the electric force and magnetic induction intensity distribution acting on the at the moment of stagnation are analyzed,which provides the basis for determining the structure of the magnetic conducting plate and the structure of the magnetic blowing coil of the excitation magnetic blowing device.Through the small current interruption test in both directions,the test wave forms are compared and analyzed,which confirms the feasibility of the series sitation magnetic blowing scheme.关键词
直流断路器/磁吹/小电流/串联激磁Key words
DC circuit breaker/magnetic blow-out/low current/series excitation分类
信息技术与安全科学引用本文复制引用
李明,雷元,高芳,陈程..直流断路器磁吹装置设计[J].船电技术,2025,45(8):21-23,29,4.
