变电站电气主接线设计.doc

目录
第一部分设计任务书介绍····································3
第二部分电气主接线方案确定······························4
电气主接线设计原则···············································4
拟定主接线方案···················································5
原始资料分析·······················································5
各类接线的适用原则·················································5
拟定方案中设计方案比较·············································6
画出主接线草图·····················································10
第三部分主变形式确定···········································11
相数确定·························································11
主变电器绕组及接线方式···········································11
冷却方式·························································
11
确定主变型号及参数···············································11
第四部分短路电流计算·········································14
短路计算目的·····················································14
短路计算的一般规定···············································14
具体短路计算·····················································15
第五部分电气设备选择·········································17
各种电气设备选择原则·············································17
母线形态选择·····················································17
按稳定选择短路情况校验···········································17
确定设备型号时,尽量减少品种·····································17
母线形式选择····················································
17
断路器,隔离开关,电流互感器,电压互感器······························································17
第六部分防雷保护及接地装置·······························22
防雷保护的论述,保护概念及意义··································22
选择避雷器型号··················································23
第七部分总结(每个同学独立完成并附在报告中)·····24
第八部分附录····················································34
短路电流计算····················································34
电气设备校验计算················································36
主要设备清单····················································43
主接线图························································44
第九部分参考书目·································