220KV变电所设计

　　　　　　　　　　　　　　　　　　　目录 第一章 变压器的选择·····················································(6) 1.主变压器的选择·······················································（6） 2所用变压器的选择······················································（7） 第二章 主接线的选择·····················································（7） 2.1电气主接线的设计原则················································（7） 2.2 设计主接线的基本要求··············································（8） 2.3 电气主接线的设计方法··············································(9)· 2.4 主接线的设计步骤··················································(9) 2.5 方案设计··························································(9) 第三张 短路电流计算·················································· （11） 3.1 短路计算的目的、规定和步骤········································（11） 3.2三相短路电流计算过程··············································（12） 3.3短路电流汇总表·················································· （15） 第四章 主要电气设备的选用·············································· （16） 4.1选择各电压等级的电气设备········································ （16） 4.2电气设备选择的技术条件·········································· ··（17） 　4.3主要电气设备的选择····························· ·········· ········（18） 　 1.附录2主接线图 ············································ ········· （20） 2附录1短路电流的计算及程序说明············································（21） 3参考文献······························································· （22）