长春工程学院毕业设计（论文）目录1引言………………………………………………………………………………………………12负荷计算………………………………………………………………………………………...22.1负荷计算的意义...................................................................................................................22.2负荷计算方法.......................................................................................................................22.3计算过程...............................................................................................................................32.3.1机修车间负荷计算............................................................................................................33变压器的选择…………………………………………………………………………………133.1主变压器台数的确定原则.................................................................................................133.2变压器的分配.....................................................................................................................133.3变压器容量的确定.............................................................................................................154电气主接线的设计…………………………………………………………………………...224.1电气主接线的概述.............................................................................................................224.2电气主接线方案的比较.....................................................................................................235短路电流计算…………………………………………………………………………………255.1短路的概述和产生的原因...........................................................................................255.2短路的危害和类型..........................................................................................................255.3短路计算过程..................................................................................................................266电气设备的选择与校验……………………………………………………………………..306.1导线的选择......................................................................................................................306.2电气设备的选择与校验.................................................................................................347二次回路设计…………………………………………………………………………………457.1二次回路的基本概念...................................................................................................457.2二次回路的组成.............................................................................................................457.3二次回路的分类.............................................................................................................457.4断路器控制回路信号系统与测量仪表....................................................................467.5继电保护装置概述.........................................................................................................477.6对继电保护装置的基本要求.......................................................................................487.7保护的设置......................................................................................................................488配电装置的设计……………………………………………………………………………...508.1配电...
