目录一、绪论.................................................................21.L电力机车的概念...................................................21.2.HXD3发展历史发展背景...........................................2二、HXD3型电力机车电气系统组成.......................................42.1.HXD3型电力机车主要特点........................................42.2电气系统组成.....................................................42.3主电路及其部件...................................................52.3.1.网侧电路....................................................62.3.2主变压器....................................................72.3.3牵引变流器..................................................82.3.4牵弓|电机...................................................102.3.5保护电路....................................................11三、HXD3主电路常见故障与维护........................................123.1牵引电机的故障..................................................123.1.1牵引电机故障...............................................123.1.2轮对空转故障...............................................133.2.电传动系统故障..................................................133.2.1提牵引主手柄无牵引力故障..................................133.2.2受电弓故障.................................................133.2.3主变流器(MPU)故障.........................................143.2.4主断合不上故障.............................................14四、结论................................................................16致谢....................................................................17参考文献................................................................18IIThisdocumentisproducedbytrialversionofPrint2Flash.Visitwww.print2flash.comformoreinformationHunanVocationalCollegeofRailwayTechnologyHXD3主电路分析与研究摘要HXD3型交流传动电力机车为交流传动货运机车，在HXD3型电力机车研制过程中采用了国内外成熟、可靠的新技术，机车以在中国国内主干线上进行大型货运牵引为目的，采用6轴货运大功率交流传动电力机车设计平台，采用PWM矢量控制、密闭式牵引变压器及整体驱动装置等新技术，尽量考虑对环境保护，减少维修工作量。该机车能满足我国铁路重载、快捷货物运输的需要本文对HXD3的主电路的组成、工作原理、常见故障做了系统的分析关键词：HXD3、主电路、电路分析1ThisdocumentisproducedbytrialversionofPrint2Flash.Visitwww.print2flash.comformoreinformati