35kV降压变电站电气主接线设计.doc

课 程 设 计 (论 文) 机械与电气工程学院 系（院）电气工程及其自动化 专业 课程设计（论文）题目 35kV降压变电站电气主接线设计 学生姓名 班 级 学 号 指导教师 完成日期 2012年 12 月 12 日  成绩： 评语： 指导教师： 年 月 日 35KV降压变电站电气主接线设计 The 35KV the buck substation electrical main wiring design 总计 课程设计（论文） 18 页 表 格 个 插 图 幅   目 录 摘 要··································································- 1 - 前言······································································ 1 第一章 主接线的选择····················································· 4 1.1变电站主接线选择的基本要求············································ 4 1.2主接线的方案的拟定··········································· 5 1.3主接线的比较与选定···················································· 7 第二章 短路电流的计算···················································10 2.2短路计算的目的······················································· 10 2.2短路电流的计算步骤及结果············································· 10 2.3无功补偿计算校验····················································· 15 第三章 主要电气设备的选择··············································16 3.1 35KV断路器和隔离开关的选择········································· 16 3.2 35kv互感器的选择·····················································17 3.3 10kv母线及35kV线路的选择··········································· 19 3.4 10KV开关柜选择·······················································19 第四章 车间变压器的选择················································21 4.1所用变的选择··························································21 4.2.1 所用变台数的选择···················································21 4.2.2 所用变容量的选择···············