通过式牵引变电所电气设计.doc

摘要自20 世纪 80 年代以来,我国的电气化铁道有了很大的发展。牵引变电所是电气化铁路的重要组成部分,它直接影响整个电气化铁路的安全与经济运行,是联系供电系统和电气化铁路的桥梁,起着变换和分配电能的作用。主接线是变电所的重要组成部分,是进行变电所的设计、施工和运营管理的重要依据。在本次课程设计中,我们用所学知识设计出符合任务要求的牵引变电所结构和接线方式。通过负荷计算选取了主变压器的型号和容量,同时对选择了负荷侧的接线方式。并运用 AutoCAD 软件绘制出了主接线图。再通过短路电流计算选择了变压器两侧断路器、隔离开关、电压互感器、电流互感器、母线和避雷器等电气设备的型号。同时介绍了在变压器霍西安路发生故障时运行方式的切换方法。从而,完成了本次课程设计。关键词: 牵引变电所变压器主接线 Abstract Traction substation is an ponent of the Electrified railway, it has a direct impact on the Electrified railway, used as intermediate links to connect power plants and users. it plays an important role in the transformation and distribution of Electrified railway. Electrical wiring is the main link of the main substation, also, the main electrical wiring directly is related to the development of the entire electrical substation, equipment selection, distribution equipment layout, protection devices and automatic identification, so it is the decisive factors of electrical investment. This thesis introduces the structure and connection modes of single-phase traction substation. Firstly, it selects the type and capacity of main transformer through the calculation of load, meanwhile, it presents the connection mode of the main transformer in detail, and maps out main connection with AutoCAD. Calculating short-current is the key of this thesis, and breakers, isolating switch, voltage transformer, current transformer, bus, arrester are selected according to the results of calculation. At the same time, some electrical devices are introduced. At last, the reformation of Course design checking various results of the calculation, the design of this thesis is reasonable and feasible. Keywords : Traction Substation Transformer Main connection I 目录第1章概述··········································································································· 1 课题研究的目的意义······················································································· 1 电气化铁路的国内外现状··········································