1、( (2*200+2*300)MW 发电厂电气部分初步设计 I 摘 要 本毕业设计论文是 2 300+2 200 MW 发电厂电气部分的初步设计。全论文除了摘要、 毕业设计书之外，还详细的说明了各种设备选择的最基本的要求和原则依据。变压器的选 择包括：发电厂主变压器、高压备用变压器及高压厂用变压器的台数、容量、型号等主要 技术数据的确定。电气主接线主要介绍了电气主接线的重要性、设计依据、基本要求、各 种接线形式的优缺点以及主接线的比较选择，并制定了适合本厂要求的主接线。厂用电接 线包括：厂用电接线的总要求以及厂用母线接线设计。短路电流计算是最重要的环节，本 论文详细的介绍了短路电流计算的目的、
2、假定条件、一般规定、元件参数的计算、网络变 换、以及各短路点的计算等知识。高压电气设备的选择包括母线、高压断路器、隔离开关、 电流互感器、电压互感器、高压开关柜的选择原则和要求，并对这些设备进行校验和产品 相关介绍。而根据本论文所介绍的高压配电装置的设计原则、要求和 220kV 的配电装置， 决定此次设计对本厂采用分相中型布置。继电保护和自动装置的规划，包括总则、自动装 置、一般规定和发电机、变压器、母线等设备的保护，而发电厂和变电所的防雷保护则主 要针对避雷针和避雷器的设计。此外，在论文适当的位置还附加了图纸（主接线、平面图、 防雷保护等）及表格以方便阅读、理解和应用。 关键词 发电厂,电气
3、设计, 短路计算,设备选择,配电装置 II Abstract This graduate design thesis is A 2 300+2 200 MW：A power plant the first period engineering electricity parts of first steps design. Whole thesis besides summary graduate to design the book outside, returned the expatiation every kind of most basic request that equipmen
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