论文部分内容阅读
1 前言 电传动机车的主要特点是结构复杂 ,技术要求高 ,特别是机车的电气部分 ,它主要承担机车的控制 ,热能、电能和动能的转换 ,满负荷时电压高达70 0Ｖ之多 ,电流则达 5 0 0 0多安培。这样大的电压、电流使得电气的热负荷很大 ,易产生元器件老化、过热、烧损 ,产生火灾 ,
1 Introduction The main features of electric drive locomotives are complex structures and high technical requirements, especially the electrical parts of locomotives. They mainly undertake the control of locomotives, the conversion of heat energy, electric energy and kinetic energy. The voltage is up to 70 0V at full load, Up to 500 amperes. Such a large voltage, current makes the electrical heat load, easy to produce components aging, overheating, burning, resulting in fire,