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1、 I摘 要电力生产过程有别于其他工业生产过程的一个重要特点，就是它的生产、输送、变换、分配、消费的几个环节是在同一个时间内同步瞬间完成。随着计算机技术、通信技术、信息技术惊人的发展，变电站综合自动化技术进一步优化，整个电网运行的安全性和经济效益得到大幅提升。这项技术将引起电力行业有关部门的重视，成为变电站设计核心技术之一。本次 220KV 变电站的设计包括负荷统计计算，主变压器台数和容量的选择、主接线方案的确定、高压开关设备的选择；应用需要系数法对整个变电所的电力负荷进行重新统计计算，并考虑今后发展需要，最终确定主变压器的容量同时选择相应的电气设备。利用标幺值法对所选短路点进行短路计算，并校验
2、电气设备的安全、可靠性。同时对 220kV 及 60kV 侧可装设的继电保护方案及防雷措施进行了综合论述。关键词：负荷计算关键词：负荷计算; ; 变压器变压器; ; 短路计算短路计算; ; 变电所变电所IIAbstractElectricity production process has an important feature that is different from others, whose production, Transmission, transformation, distribution and consumption are nearly completed at t
3、he same time. with alarming development of computer technology, communications technology and information technology, substation automation technology optimizes further. The safety and economic benefits of the operation of power are substantial upgrade grids. This technology will give rise to the re
4、levant departments of the power industry and become one of the core technologies substation designs. The designation of 220 kV substations includes statistics calculated load, capacity and the number of Taiwans main transformer, the determination of the main cable programme and high-voltage switch e
5、quipment selection. re-calculation of statistics of the entire substation load with law need to factor, and determine the capacity of the main transformer at the same time select the appropriate electrical equipment to consider the future needs. Uses of per-unit value of the selected short-circuit p
6、oints short circuit, and check the safety and reliability of electrical equipment. At the same time, there is a comprehensive exposition of 220 kV and 60 kV side of the protection programme can be installed lightning protection measures.Key words: load calculation; transformer; short-circuit calcula
7、tion; SubstationIII目 录摘 要.IABSTRACT.II第 1 章 引言.11.1 变电所概况.1 1.1.1 变电所概况介绍.1 1.1.2 原始资料分析.1 1.2 变电所选址的条件和选址程序.2 1.2.1 所址选择的条件.2 1.2.2 变电所选址程序.2第 2 章 负荷计算及主变压器的选择.42.1 电力负荷及电力负荷计算.4 2.2 变压器的选择.6 2.2.1 主变压器容量的确定.6 2.2.2 主变压器台数的确定.6第 3 章 电气主接线选择.83.1 概述.8 3.2 电气主接线选择总的要求.8 3.2.1 主接线的基本形式及预定方案.8 3.2.2 对 220 千伏侧接线方式的论证.9 3.2.3 60 千伏侧接线方式的论证.9 3.2.4 经济比较.9第 4 章 短路电流的计算.114.1 概述.11 4.2 短路电流的计算法.11 4.2.1 短路计算数据说明.11 4.2.2 短路计算基本原则.13 4.2.3 计算规定.14 4.2.4 短路计算点的选择.
