1、 I 毕业设计（论文） 课 题 名 称 220kV变电站电气一次部分初步设计 学 生 姓 名 学 号 系 、 专 业 电气工程系、电气工程及其自动化 指 导 教 师 职 称 II 内容提要 本次设计为220kV变电站电气一次部分的初步设计。根据原始资料，以设计任 务书和国家及行业有关电力工程设计的规程规范为设计依据， 并结合该地区实际情况 设计该变电站，设计的内容符合国家有关经济技术政策，所选设备全部为国家推荐的 新型产品，技术先进、运行可靠、经济合理。本期该变电站设有两台主变压器，远期 该变电站设有三台主变压器。站内主接线分为220kV、110kV和10kV三个电压等 级。 设计正文分设计说
2、明书和设计计算书两个部分，设计说明书包括电气主接线设 计、变压器选择说明、短路电流计算说明、电气设备选择说明、配电装置设计、电气 总平面布置和防雷保护设计；设计计算书包括变压器选择、短路电流计算、电气设备 选择及校验等，并附有电气主接线图及其它相关图纸。 关键词： 220kV变电站； 短路计算； 主接线； 设备选择。 III Summary The design of 220 kV substation electrical part of the preliminary design at a time. According to the original data, a design sp
3、ecification and country and industry relevant power engineering design procedure specification for design basis, and combined with the regions actual condition, the design of the substation design in conformity with the relevant economic and technological policies of the state, the contents of the s
4、elected equipment for all countries recommend new products, advanced technology, reliable operation, economic and reasonable The substation is equipped with two sets of the main transformer, forward the has three main transformer substation. station connection is divided into 220 kV, 110 kV and 10 k
5、V voltage grade three. This text points design specifications and design calculation of two parts, the design specifications, including the main electrical wiring design of transformer selection, the short circuit current calculation, electrical equipment selection, design of power distribution equi
6、pment, electrical total plane layout and lightning protection design; Design calculation includes the choice of transformer, the short-circuit current calculation, electrical equipment selection and calibration, etc., with the main electrical wiring diagram and related drawings. Key words: 220 kV substation; Short circuit calculation; The main wiring;
