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1、摘摘 要要本毕业设计论文是某 60KV 降压变电所电气部分初步设计。 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：主变压器的台数、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，并制定了适合要求的主接线； 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、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、电压互感器的选择原则和要求，并对这些设备进行校
2、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 60KV、10KV 的配电装置，决定此次设计60 KV 侧采用普通中型布置、10KV 侧采用屋内配电布置。继电保护和自动装置的规划，包括总则、自动装置、一般规定主变压器、母线等设备的保护， 而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、断面图、防雷保护等）及表格以方便阅读、理解和应用。关键字：短路计算 校验 设备选择AbstractThis graduate design thesis is a certain declining to press to change
3、 to give or get an electric shock an 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 equipments choose with the principle according to. The choice of the transformer includes:Th
4、e main technique in number, capacity, model number.etc. in set data of the main transformer really settles;The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming a
5、nd lords that connect the line form connects the linear choosing more, combining the lord that established the in keeping with request connect the line; Shortcircuit current calculation is calculation, network transformation that the most important link that calculation etc. knowledge, this thesis i
6、ntroduced the calculating purpose, assumption in shortcircuit current term, general provision, a parameter detailedly, and each short circuit order; The choice of the high pressure electric equipment includes the choice principle of the busbar, high pressure circuitbreaker, isolation switch, current
7、 transformer, voltage transformer with request, and proceed to these equipmentseses the school check with the related introduction in product.But go together with the design principle, request that electricity equip according to this thesis a high pressure for introducing to go together with the ele
8、ctricity device with the 220 KV,60 KV, decide to be this time to design a side adoption the cent the mutually medium-sized arranging, a side adoption is common medium-sized arranging.Relaying protection with the programming of the automatic device, include the total a protection for, automatic devic
9、e, generally ruling main transformer, busbar.etc. equipments, but change to give or get an electric shock a design for defending thunder protection then primarily aiming at lightning rod with surge arrester, lightning arrester.In addition, return in the appropriate position in thesis additional draw
10、ing paper( the lord connects the line, plan, topographical plan, cross section drawing and defend the thunder protection etc.) and tables read, comprehend with the convenience with applied.Key word:The short circuit calculation school checks the equipments choice目录摘摘 要要.IABSTRACT.II第一篇 说明书.1第一章 引言.1
11、第二章 主变压器的选择.22.1 主变压器选择的要求 .2 2.2 主变压器的选择 .2 2.2.1.总容量的确定 .2第三章 主接线形式的选择及说明.43.1 接线的设计原则 .4 3.2 主接线的设计要求 .4 3.3 主接线的选择 .5 3.4 主接线的确定 .7第四章 高压配电装置.84.1 高压配电装置和设计原则及要求 .8 4.2 设备的配置 .10 4.2.1 隔离开关的配置.10 4.2.2 电压互感器的配置.10 4.2.3 电流互感器的配置.10 4.2.4 接地刀闸的配置.10 4.2.5 避雷器的配置.11 4.3 配电装置的选择 .11第五章 短路计算说明.125.1 短路电流计算的目的 .12 5.2 电力系统短路电流计算条件 .12 5.2.1 基本假定.12 5.2.2 一般规定.13 5.2.3 电路元件参数的计算.13 5.2.4 等值电源的计算.14 5.2.5 三相短路电流周期分量计算.14 5.2.6 冲击电流的计算.14 5.2.7 不同电流代表的意义.15 5.3 设计中应注意的问题 .15 5.4 计算结果 .
