题目：110kV变电站电气一次部分设计专业班级学生姓名学号摘要设计的重要性变电站的作用本设计的主要思路……[关键词]变电站……目录第1章原始资料及其分析···············································31原始资料····························································32原始资料分析·······················································4第2章负荷分析························································5第3章变压器的选择···················································8第4章电气主接线·······················································10第5章短路电流的计算·················································131短路电流计算的目的和条件·········································132短路电流的计算步骤和计算结果·····································14第6章配电装置及电气设备的配置与选择·····························171导体和电气设备选择的一般条件····································172设备的选择·························································173高压配电装置的配置················································18结束语····································································41致谢·······································································42参考文献··································································43附录一：一次接线图第一章原始资料及其分析1.原始资料待建变电站是该地区农网改造的重要部分，预计使用3台变压器，初期一次性投产两台变压器，预留一台变压器的发展空间。1.1电压等级变电站的电压等级分别为110kV，10kV。110kV：2回10kV：8回（其中两回备用）1.2变电站位置示意图：图1变电站位置示意图1.3待建变电站负荷数据（表1）表1待建成变电站各电压等级负荷数据电压等用户名最大负荷回路供电方距离负荷性级称（MW）数式（km）质陶瓷厂0.561电缆4Ⅱ化肥厂0.632电缆4Ⅱ仪表厂0.421电缆3Ⅲ10kV配电变0.781架空15Ⅰ压器A配电变0.91架空16Ⅲ压器B备用2注：（1）10kV负荷功率因数取cos¢=0.85（2）负荷同期率：kt=0.9（3）年最大负荷利用小时数均为Tmax=3500小时年(4）网损率为k"=5%（5）站用负荷为50kWcos¢=0.87（6）10kV侧预计新增远期负荷6MW。1.4地形地质站址选择在地势平坦地区，四周皆为农田，地质构造洁为稳定区，站址标高在50年一遇的洪水位以上，地震烈度为6度以下。1.5水文气象年最低气温为-2度，最高气温为40度，月最高平均气温为37度，年平均气温为22度。1.6环境站区附近无污染源2.原始资料分析要设计的变电站由原始资料可知有110kV，10kV两个电压等级。由于该变电站是在农网改造的大环境下设计的，所以一定要考虑到农村的实际情况。农忙期和农闲期需电量差距较大，而且考虑到城镇地区的经济发展速度很快，所以变压器的选择考虑大容量的，尽量满足未来几年的发展需要。为了彻底解决农网落后的情况，待建变电站的设计尽可能的超前，采用目前的高新技术和设备。待建变电站选择在地势平坦区为以后的扩建提供了方便。初期投入两台变压器，当一台故障或检修时，另一台主变压器的容量应能满足该站总负荷的60%，并且在规定时间内应满