1、 毕 业 项 目 报 告 课题名称 区域降压变电所设计 系/专 业 电气/电气与自动化 班 级 学 号 学生姓名 指 导 教 师 ： 毕业项目报告纸 共 2 页 第 2 页 装 订 线 摘摘 要要：首先根据任务书上所给系统与线路及所有负荷的参数。从负荷增 长方面阐明了建站的必要性，然后通过对拟建变电站的概括以及出线方向来考 虑，并通过对负荷资料的分析，安全，经济及可靠性方面考虑，确定了 220kV， 110kV，35kV 以及站用电的主接线，然后又通过负荷计算及供电范围确定了主变 压器台数，容量及型号，同时也确定了站用变压器的容量及型号，最后，根据最 大持续工作电流及短路计算的计算结果，对高压
2、熔断器，隔离开关，母线，绝缘 子和穿墙套管，电压互感器，电流互感器进行了选型，从而完成了 220kV 电气一 次部分的设计。 关键词关键词：220kv220kv；变电站变电站；变压器变压器；接线接线；设计设计 First of all the books in accordance with the mandate to the system and all load and line parameters. Load growth from 建站 the need to set out, and then through the summary of the proposed substat
3、ion, as well as to consider the direction of advance through the analysis of load information, security, economic and reliability considerations, to determine the 220kV, 110kV, 35kV as well as the stations main power wiring, and then through the load and power supply to determine the scope of the nu
4、mber of the main transformer, capacity and model, but also identified the capacity of the transformer station and model, and finally, in accordance with maximum sustained current and short circuit calculation The results of high-voltage fuses, isolating switches, busbars, insulators and wall casing, voltage transformer, current transformer for the selection, thus completing the first part of 220kV electrical d
