德清民乐小区供电系统设计

文档编号:DQ172   文档字数:14829,页数:39

 摘要
 本设计说明书是以德清民乐小区的变配电所为主体进行设计的。通过对设计原始资料的分析，住宅小区负荷的计算短路计算，选择相应的主变压器台数和容量，从而确定其具体的供电系统。再对其初选的系统进行相应的短路计算和高低压设备的选择及校验，选择和校验高低压线路。结合课本的基础知识，根据我国变配电所的运行情况以及各种电气设备的标准，进行具体的电气设备，达到安全用电和节约能源的目的，另外得出该住宅小区供电系统的线路图。本设计严格遵循变电所电气部分的设计原则。
 通过本次毕业设计，巩固了供电系统的设计，熟练运用四年以来学过的知识，锻炼并提高了独立分析和解决问题的能力，也培养了对大学四年所学知识的综合应用。

关键词：小区供电  配电系统  负荷计算

Abstract
The design specification is based on folk music Deqing area for the variable distribution of the main design. Through the design analysis of raw data, the calculation of residential quarters load short-circuit calculation, select the appropriate and the number of main transformer capacity, in order to determine the specific power supply system. Primary system and then its corresponding short-circuit calculations and the choice of high and low voltage equipment check, selection and validation of high low-voltage lines. Combined with the basic knowledge of textbooks, according to our country by changing the operation of distribution and a variety of electrical equipment standards, electrical equipment specific to the security of electricity and energy savings, and come to the residential quarters of the line power supply system Fig. Strictly follow the design of electrical substation design principles.
Graduated through the design, the consolidation of the power supply system design, training and increased the independent analysis and problem-solving skills, also trained by four years of university the comprehensive application of knowledge.

Key word:  Cell Power Supply，Distribution System，Load Calculation

目 录
摘要………………………………………………….…………………………. . .………..…...Ⅱ
Abstrcat……………………………………………….……………………………………..…..Ⅲ
1  前言……………………………………………….……………………………………….....1
1.1  本课题研究的目的及意义…………………….……………………………………………1
1.2  供电系统的现状与未来发展………………….…………………………………………....1
1.3  本文的设计依据……………………………….……………………………………….…...2
1.4  本文所做的主要工作………………………….……………………………………..……..2
2  民乐小区供电系统总体方案及要求………….………………………………..……...3
2.1  民乐小区工程概况…………………………….……………………………………………3
2.2  供配电要求概述……………………………….…………………………………………....3
2.3  主接线方案的确定…………………………….……………………………………….…...5
3  民乐小区负荷计算及变压器选择…………….………………………….……..……...9
3.1  负荷计算原始资料…………………………….……………………………………………9
3.2  小区供电负荷计算…………………………….…………………………………………..10
3.3  变压器的选择………………………………….…………………………………………..16
4  民乐小区短路计算………………………….……...…………………….…..……….….17
4.1  短路计算的目的及方法………………….………………………………………………..17
4.2  短路计算……………………………….………………………………………………......17
5  民乐小区一设备的选择与校验…….…………………..………………………....…..21
5.1  一次设备选择与校验的条件及项目………………….……………….………….….…...21
5.2  一次设备的选择与校验………………….……………….………………….……….…...22
6  民乐小区输电线路选型……………………………………..………….……………....25
7  民乐小区照明系统设计…………………………………………………………..….…28
7.1  照明设计的一般规定……………………………………………………………...…...…28
7.2  本设计的具体设计方案…………………………………………………………….…….29
8  民乐小区接地与防雷设计……………………………….………………………….…30
8.1  接地与防雷概述……………………………………………………………………..……30
8.2  接地与防雷设计方案...……………………………………….…………………………..32
9  总结…………………………………………………………………….…………..……....33
致谢……………………………………………………………………………….…....…….....34
参考文献………………………………………………………………………..….……..……35

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