电器与能效管理技术Issue(4)：35-40,6.DOI:10.16628/j.cnki.2095-8188.2017.04.008
小型断路器导电回路温度场的仿真与分析
Simulation and Analysis of Conductive Circuit Temperature Field in MCB
摘要
Abstract
The internal heating situations of miniature circuit breaker have an important influence on its structure of life and job characteristics.Through the establishment of three-dimensional finite element model of miniature circuit breaker conductive circuit, the conductive circuit of temperature rise under different working condition was calculated by the electric-thermal direct coupling method.From this analysis, the effect of contact pressure on the contact surface temperature and the temperature distribution of the shell were studied, and the simulation results were verified by the temperature rise experiment.By using the results of the conductive loop thermal analysis, the tripping characteristics of thermal bimetallic strip which is connected within the circuit in series were calculated, the thermal trip temperature rise and displacement were also searched under relevant standards requirement.关键词
小型断路器/双金属元件/温度场/有限元Key words
miniature circuit breaker/bimetallic element/temperature field/finite element分类
信息技术与安全科学引用本文复制引用
葛瀚明,许志红,姚国华..小型断路器导电回路温度场的仿真与分析[J].电器与能效管理技术,2017,(4):35-40,6.基金项目
国家自然科学基金项目(51277031) （51277031）
福建省自然科学基金(2015J01192) （2015J01192）
福建省科技厅重点项目(2014H0002) （2014H0002）
福建省科技厅产学合作项目(2016H6008) （2016H6008）
