某高层建筑物供配电系统设计

郑州轻工业学院

课程设计说明书

题目：某高层建筑物供配电系统设计

姓 名： 闫广超 院 （系）： 电气信息工程学院 专业班级： 电气工程2009级1班 学 号： 540901010247 指导教师： 成 绩：

时间：2012年12月31日至 2013年01月20日

摘 要

本设计是对26层商业办公建筑楼的供配电系统进行全面设计，为保证供电系统安全、可靠、优质、经济地运行，必须遵守国家的有关规定及标准，执行国家的有关方针政策，包括节约能源，节约有色金属等技术经济政策。

设计内容包括确定大楼的设备电气负荷等级，进行负荷计算；无功补偿的计算；选择电力变压器的容量、类型及台数；各个楼层供电线路中的短路电流的计算；变电所的电气主接线设计。设计过程中需要绘图的部分使用AutoCAD绘图，最后将整个设计过程整理、总结设计文档报告。

关键词： 商业办公楼；供配电；负荷计算；设备选择；电气主接线

I

ABSTRACT

The design is to conduct a comprehensive design, supply and distribution system of the 26-storey commercial office building floor to ensure the power supply system is safe, reliable, high-quality, economical to run, you must comply with the relevant requirements and standards of the country, the implementation of the relevant principles and policies of the country, including energy conservation, saving non-ferrous metals and other technical and economic policies.

Designed to determine the building's equipment electrical load level, load calculation; calculation of reactive power compensation; choose the power transformer capacity, type and number of units; calculation of short-circuit current in the supply lines of the various floors; substation's main electrical wiring design. The drawing of the design process using the AutoCAD drawing, and finally finishing the entire design process, and summarize the design documentation reports.

KEY WORDS: Commercial office buildings；supply and distribution；calculating the loads；equipment selection；electrical wiring.

II

目 录

摘 要 ........................................................................................... I ABSTRACT .................................................................................... II 1.绪论 .............................................................................................. 1 2.负荷计算 ...................................................................................... 1 2.1确定计算负荷 ....................................................................... 2 2.2无功补偿 .............................................................................. 2 3.负荷分级及供电电源设计 .......................................................... 3 3.1负荷分级 .............................................................................. 3 3.2供电电源设计 ....................................................................... 3 4.电力变压器选择 .......................................................................... 4 4.1 变压器型式及台数 .............................................................. 4 4.2 变压器容量选择 .................................................................. 5 4.3 变压器负荷分配计算及补偿装置选择 ............................... 5 5.计算短路电流 .............................................................................. 8 5.1高压侧短路电流计算 ........................................................... 8 5.2低压电网短路电流的计算 ................................................... 9

5.2.1变压器低压侧短路电流的计算 ....................................................... 9 5.2.2 低压配电线路短路电流计算 ........................................................ 10

6.变电所电气主接线设计 ............................................................ 13

6.1变电所高压电气主接线设计 ............................................. 13

6.1.1电气主接线形式及运行方式 ......................................................... 13 6.1.2开关柜型式及配置 ......................................................................... 14 6.1.3变电所用电设计 ............................................................................. 14 6.1.4电气主接线图绘制 ......................................................................... 14

6.2变电所低压电气主接线设计 ............................................. 14

6.2.1电气主接线形式及运行方式 ......................................................... 14 6.2.2开关柜型式及配置 ......................................................................... 14 6.2.3电气主接线图绘制 ......................................................................... 15

参考文献 ........................................................................................ 16 附录1 ............................................................................................. 16 附录2 ............................................................................................. 19

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