毕业设计（论文）说明书题目：220KV变电站电气部分设计系别：电子与信息工程系专业班级：电气工程及其自动化学生姓名：指导教师：教研室：电气教研室提交时间：2007年6月13日摘要随着我国科学技术的发展，特别是计算机技术的进步，电力系统对变电站的更要求也越来越高。本设计讨论的是220KV变电站电气部分的设计。首先对原始资料进行分析，选择主变压器，在此基础上进行主接线设计，再进行短路计算，选择设备，然后进行防雷接地以及保护、配电装置设计。关键字：变电站；短路计算；设备选择。ABSTRACTWiththedevelopmentofscienceandtechnologyinChina,particularlycomputingtechnologyhasadvanced,thepowersystemdemandsonsubstationmoreandmore.Thedesignisrefertothepartof220kVelectricalsubstationdesign.Firstofall,analyzetheoriginaldataandchoosethemaintransformer,basedonit,designthemainwiringandShortCircuitCalculation,atlastchooseequipment,thenmineandtheprotectionofearthanddistributiondevice.KeyWords:Substation；ShortCircuitCalculation；EquipmentSelection目录摘要.............................................................................................................................................IABSTRACT..................................................................................................................................II第1章引言...............................................................................................................................1第2章电气主接线的设计.......................................................................................................22.1主接线概述.......................................................................................................22.2主接线设计原则...............................................................................................42.3主接线选择.......................................................................................................4第3章主变压器的选择...........................................................................................................73.1主变压器的选择原则.......................................................................................73.1.1主变压器台数的选择.............................................................................73.1.2主变压器容量的选择.............................................................................73.1.3主变压器型式的选择.............................................................................83.1.4绕组数量和连接形式的选择.................................................................93.2主变压器选择结果...........................................................................................9第4章所用电设计..................................................................................................................104.1所用变选择.....................................................................................................104.2所用电接线图.................................................................................................10第5章220KV变电站电气部分短路计算.........................................................................125.1变压器的各绕组电抗标幺值计算.................................................................125.210KV侧短路计算..........................................................................................135.3220KV侧短路计算................................................................................
