交流高压熔断器线状熔体温度特性分析  

Analysis on Temperature Characteristic of Alternating-current High-voltage Fuse Wire

作　　者：雷璟 刘东霖[2] 杨翠茹 王文轩 林一峰 林春耀 杨颖[2] LEI Jing;LIU Donglin;YANG Cuiru;WANG Wenxuan;LIN Yifeng;LIN Chunyao;YANG Ying(Electric Power Research Institute of Guangdong Power Grid,Guangzhou 510080,China;State Key Laboratory of Control and Simulation of Power System and Generation Equipment,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]广东电网有限责任公司电力科学研究院,广州510080 [2]清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室,北京100084

出　　处：《高压电器》2018年第9期92-96,共5页High Voltage Apparatus

摘　　要：文中针对交流高压熔断器建立了一种计算线状熔体温度随电流变化的数学模型,能够较为精确地计算熔体在低电流倍数下的温度情况。通过建立三维热电耦合模型,利用Ansys对熔体进行仿真,并与熔体实际温度状况和熔断时间进行比对,结果表明该模型具有较好的精确度。利用该模型和方法对熔断器进行设计可以极大的提高设计的准确性,为实际工程应用提供便利。A mathematical model for calculating the current dependent melting temperature of linear fuse wire is set up to deal with the high-voltage current-limiting fuse. The key point is that it can accurately calculate the temperature of the fuse under low current ratio. A 3D thermal-electric coupling model is set up to simulate the heating process of the fuse element by using the software Ansys, and the obtained temperature melting time of the fuse are cornpared with the measured data to verify the high accuracy retical reference for engineering applications. of the model. This model and the method may provide a theoretical reference for engineering applications.

关 键 词：熔断器 线状熔体 数学模型 ANSYS 温度场 

分 类 号：TM563[电气工程—电器]