摘要
通过高压限流熔断件正常工作时其表面与空气间自然对流换热原理的分析，建立了熔断件表面温升分布的数学模型研究结果表明，熔断件垂直安装时，其上、下触头温升有很大差别，几乎差１ 倍，这主要是由于熔断件与空气间自然对流换热系数变化大的缘故。相应的实验验证了这一结果。文中所述的分析方法及所建立的数学模型可推广应用于同类结构的其它电器产品。
Through the theoretical analysis of nature heat convection between the air and the surface of high voltage current limiting fuses in normal service, a mathematical model for the temperature rise distribution of the surface of the fuse link is put forward. The results of study show that the temperature rise has great difference between the up and down contact of fuse when the fuse link is fixed vertically, and it is proved by the experiment research. The mathematical model and the analysis method could be applied to other similar structural appliances.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第11期55-58,共4页
Proceedings of the CSEE
