完美 WORD 格式
目录
1 课程设计原始数据................................................................................................................................................1
1.1 设计题目.........................................................................................................................................................1
1.2 设计要求.........................................................................................................................................................1
1.3 设计依据.........................................................................................................................................................2
1.4 设计任务.........................................................................................................................................................4
2 负荷计算及功率补偿............................................................................................................................................5
2.1 负荷计算的方法.............................................................................................................................................5
2.2 无功功率补偿.................................................................................................................................................8
3 变电所位置和型式的选择..................................................................................................................................10
3.1 根据变配电所位置选择一般原则:...........................................................................................................10
4 变电所变压器和主接线方案的选择..................................................................................................................11
4.1 主变压器的选择...........................................................................................................................................11
4.2 装设一台主变压器的主接线方案...............................................................................................................11
5 短路电流的计算..................................................................................................................................................11
5.1 绘制计算电路...............................................................................................................................................11
5.2 确定短路计算基准值...................................................................................................................................12
5.3 计算短路电路中个元件的电抗标幺值.......................................................................................................12
5.4 K-1 点〔10.5KV 侧的相关计算...................................................................................................................12
5.5 K-2 点〔0.4KV 侧的相关计算.....................................................................................................................12
6 变电所一次设备的选择校验..............................................................................................................................13
6.1 选择校验条件...............................................................................................................................................13
6.2 10KV 侧一次设备的选择校验....................................................................................................................15
6.3 0.4KV 侧一次设备的选择校验...................................................................................................................16
7 变压所进出线与邻近单位联络线的选择..........................................................................................................17
7.1 10KV 高压出线的选择:.............................................................................................................................17
7.2 变电所及邻近单位焦点路线的选择...........................................................................................................18
7.3 0.4KV 低压出线选择...................................................................................................................................18
7.4 按发热条件选择...........................................................................................................................................19
7.5 校验电压损耗...............................................................................................................................................19
7.6 短路热稳定校验...........................................................................................................................................20
设计总结.................................................................................................................................................................20
致 谢........................................................................................................................................................................21
参考文献.................................................................................................................................................................21
附图.........................................................................................................................................................................22
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