船电技术2026，Vol.46Issue(2)：37-40,4.
直流断路器自激式磁吹装置优化设计
Optimization design of self-excited magnetic blowing device for DC circuit breaker
陈程 1李明 1雷元2
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
- 折叠
摘要
Abstract
To improve the low-current breaking capability of the DC circuit breaker,a self-excited magnetic blowout device is added.However,during short-circuit tests,the magnetic blowout coil is severely distorted under the large electromagnetic force when subjected to short-circuit current.To solve this problem,this paper proposes to improve the structure of the magnetic blowing coil by adding glue-potting treatment,encapsulating the magnetic blowing coil in enhanced nylon.Firstly,the stress distribution of the enhanced nylon encapsulated on the magnetic coil is obtained through statics simulation,which verifies that the strength of the enhanced nylon meets its mechanical performance requirements.Secondly,the temperature field distribution of the magnetic blowing coil is obtained through temperature rise simulation,which verifies that the enhanced nylon material meets its maximum temperature rise conditions.Finally,the feasibility of the improved scheme confirmed through low current breaking tests and high current short-circuit breaking tests.关键词
直流断路器/磁吹装置/分断试验Key words
DC circuit breakers/magnetic blowout device/circuit-breaking test分类
信息技术与安全科学引用本文复制引用
陈程,李明,雷元..直流断路器自激式磁吹装置优化设计[J].船电技术,2026,46(2):37-40,4.
