石英砂熔断器弧前时间数值仿真  

Simulation Calculation of Pre-arcing Time for Sand Fuses

作　　者：荣命哲[1] 高建玲[1] 吴翊[1] 白凡[1] 贺伟锋[1] 史强[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《低压电器》2011年第1期6-8,17,共4页Low Voltage Apparatus

摘　　要：分析了熔体熔断过程的电流场和温度场的变化,并根据能量守恒定律将电流场和温度场方程联立起来,建立了描述熔体熔断过程的热电耦合数学模型。采用有限元分析软件Ansys对该模型进行分析求解,为熔断器的选择以及熔断器在使用过程中带来的热效应和过电压问题的解决提供依据。The current field and temperature field of the fuse during the transient process were analyzed and the two fields above were set up based on energy conservation law.A model of the thermoelectric coupling field of the fuse was established.The model was analyzed based on Ansys.The results of the research could be used as the principle to select fuse and solve the protection problem of thermal effect and overvoltage.

关 键 词：高压限流熔断器 砂模 弧前时间 建模 仿真计算 

分 类 号：TM563[电气工程—电器]