方圆小区电气工程设计计算书.doc

1、目 录摘要IAbstractII引言11 设计概要11.1小区概况11.2 设计原则及依据11.3 设计要求12 负荷统计计算与无功补偿计算1 2.1 负荷统计计算12.2 无功功率计算及补偿22.2.1 无功补偿方式22.2.2 无功补偿容量22.2.3 并联电容器的选择33 变电所布置及型式33.1 变电所的位置选择33.2 变配电室的结构33.3 变配电室的型式选择44 变压器的选择44.1 变压器台数的选择44.2 变压器容量的选择45 主接线方案的选择55.1 变电所主接线方案的评价55.2 变电所主接线方案的确定56 短路电流计算66.1 短路计算概述66.1.1 短路计算的目的6

2、6.1.2 短路计算的内容66.1.2 短路计算的方法66.2 相关节点的短路计算66.2.1 短路计算点的选取66.2.2 相关节点的短路计算77 线缆的选择与校验87.1 高压电缆的选择与校验87.1.1 高压进线电缆87.1.2 高压母线97.1.3高压出线电缆的选择9 7.2 低压电缆的选择与校验107.2.1 低压母线107.2.2 低压出线电缆108变电所一次设备的选择与校验118.1 高压一次设备的选择与校验118.1.1 高压隔离开关118.1.2 高压断路器128.1.3 高压熔断器138.1.4 电流互感器138.1.5 电压互感器138.1.6 高压开关柜138.1.7

3、高压避雷器148.2 低压一次设备的选择与校验148.2.1 低压断路器148.2.2 低压电流互感器158.2.3 低压刀开关的选择与校验168.2.4 低压配电柜169.小区单体设计169.1 电气照明设计169.1.1 电气照明概述169.1.2 灯具的选择与布置169.1.3照度计算179.1.4 照度计算书179.1.4开关、插座的选择与布置229.1.5各级线路及配电箱选择229.2 智能弱电系统设计239.2.1 有线电视系统239.2.2 电话系统239.2.3 网络布线系统239.2.4 访客对讲系统2310 防雷与接地装置的选择2310.1 变电所防雷与接地系统设计2310

4、.2 单体楼的防雷与接地系统设计26参考文献27致谢28附件29iiiAbstractIIIntroduction11 Design outline11.1Community survey11.2 Design principle and basis11.3 Design requirements12 Calculation of load statistics and calculation of reactive power12.1 Load statistics calculation12.2 Reactive power calculation and compensation22.2

5、.1 Reactive power compensation method22.2.2 Reactive power compensation capacity22.2.3 Selection of shunt capacitor33 Substation layout and type33.1 Position selection for Substation33.2 Structure of Substation33.3 Type selection for Substation44 Transformer selection44.1 The choice of transformer44

6、.2 Transformer capacity choice45 Selection of main wiring scheme55.1 The evaluation of substation main wiring scheme55.2 Determination of main wiring scheme of Substation56 Calculation of short-circuit current66.1 Short circuit calculation66.1.1 The purpose of short circuit calculation66.1.2 Content

7、s of short-circuit calculation66.1.2 Method of short circuit calculation66.2 Short circuit calculation of correlation node66.2.1 Selection of short-circuit calculation points66.2.2 Short circuit calculation of correlation node77 Cable selection and verification87.1 Selection and verification of high

8、 voltage cable87.1.1 High voltage feed cable87.1.2 High voltage bus97.1.3Selection of high-voltage cable outlet cable97.2 Selection and verification of low voltage cable107.2.1 Low voltage bus107.2.2 Low-voltage outgoing cable108Selection and verification of the equipment for Substation118.1 Selecti

9、on and verification of HV equipment118.1.1 High voltage isolating switch1118.1.2 High voltage circuit breaker128.1.3 High voltage fuse138.1.4 Current transformer138.1.5 Voltage transformer138.1.6 High voltage switch cabinet148.1.7 High voltage surge arrester148.2 Selection and verification of low vo

10、ltage primary equipment148.2.1 Low voltage circuit breaker158.2.2 Low voltage current transformer168.2.3 Selection and verification of low pressure knife switch168.2.4 Low voltage distribution cabinet169.District monomer design169.1 Electrical lighting design169.1.1 Overview of electrical lighting16

11、9.1.2 Selection and layout of lamps169.1.3 Illumination calculation179.1.4 Illuminance calculation179.1.4The choice and layout of switch and socket229.1.5All levels of line and distribution box selection229.2 Design of intelligent weak current system239.2.1 Cable TV system239.2.2 Telephone system239

12、.2.3 Network cabling system239.2.4 Visitor intercom system2310 Lightning protection and grounding device selection23 10.1 Lightning protection and grounding system design of Substation23 10.2 Lightning protection and grounding system design single building26Reference27Thank28Annex291方圆住宅小区电气工程设计摘要：随

13、着人们生活水平和素质的提高，人们对居住环境的质量要求也越来越高。住宅电气设计合理化程度直接影响到建筑工程的使用性能,也会影响到民众生活质量。本次电气工程设计严格按照国家设计规范，以主要电气系统设计为主，分别从弱电系统设计，供配电设计，防雷与接地设计，单体楼电气照明及动力设计，综合布线等几部分内容进行设计。精确合理的选用电力设备，采用有效保护以避免各种电气安全事故的发生。使本小区的住宅电气设计更加合理、经济、安全。关键词：电气照明设计 智能弱电系统 供配电设计 设备选择 继电保护1Electrical Engineering Design for Fangyuan Residential Dis

14、trictHuxiaoxuAbstract With the improvement of people s living standards and quality, people s quality of living environment becomes higher and higher. The degree of rationalization of residential electrical design directly affects the use of architectural engineering, but also affects the quality of

15、 life of the people. Electrical design of the project strictly in accordance with national design code, mainly to the main electrical system design, respectively from the weak current system design, design of power supply and distribution, lightning protection and grounding design, some monomer buil