一种塑壳断路器去牵引杆化设计与研究

打开文本图片集

关键词：塑壳断路器；去牵引杆；多级传动；成本降低；性能提高中图分类号：TM56 文献标志码：A 文章编号：2095-8188（2026）02-0077-05DOI： 10.16628/j. cnki.2095-8188.2026.02.010

Abstract：As the market’s dual demands for performance and cost of molded case circuit breakers（MCCBs） continue to rise，structural innovation has becomecrucial.Aninnovative structure of MCCB that eliminates the traction rod and directly adopts a design featuring a backup armature and an adjustment screw for tripping and reclosing is introduced.Theprincipleand structuralcharacteristicsofthisdesignareelaborated，and itsadvantages inreducingcostsand improving performanceareanalyzed through acomparison with the traditional tractionrod structure.Practical experience has demonstrated thatthis innovativedesign effectivelymets themarket’sdemand for high performance and low cost of MCCBs，and has broad application prospects.

Key words：molded case circuit breaker；removal of traction rod；multi-stage transmisson；cost reduction；performance improvement

0引言

塑壳断路器作为低压配电系统中的关键保护设备，广泛应用于工业、商业和民用领域。（剩余4808字）