大白峪小区回迁房第三期工程电气设计计算书.doc

1、 目 录引言11 设计概况11.1 小区概况11.2 设计依据11.3 设计要求21.4 设计成果22 防雷和接地装置的确定22.1 概述22.2 变电所防雷接地系统设计22.3 单体楼的防雷接地系统设计33 弱电系统设计43.1 概述43.2 有线电视系统43.3 电话系统43.4 网络布线系统53.5 访客对讲系统54 照明系统54.1 光源照度计算54.2 工作房间表面反射比84.3 本工程实际各表面反射率表84.4本工程照明具体计算94.5 插座系统144.6 电源进线设计154.6.1标准层户开关箱系统计算154.6.2住户开关箱出线线路选择164.7 照明线路的控制与保护175 设

2、计计算书175.1 负荷分析175.2 无功功率计算及补偿195.2.1 电力电容接线方式195.2.2 无功补偿方式205.2.3 无功补偿容量205.2.4 并联电容器的选择216 变电所位置和形式的选择226.1概述226.2 小区变配电所的布置及结构方案226.2.1 配电室的结构236.2.2 值班室的结构246.3 变电所位置的确定247 主变压器台数和容量的确定257.1 变压器主变台数的选择257.2 变电所主变压器容量的选择258 变电所主接线方案的选择268.1 变电所主接线方案的评价268.2 变电所主接线方案的确定269 短路电流计算279.1 短路计算的意义和内容27

3、9.2 短路电流计算方法279.3 短路计算点的选取2710 变压器一次设备的选择与校验3110.1 概述3110.2 高压一次设备的选择和校验3110.3 低压一次设备的选择和校验3311 变电所高、低压线路的选择3611.1 高压侧线路的选择与校验3711.2 低压侧线路的选择与校验3812 变电所继电保护设计4012.1 概述4012.2 变压器保护设置4012.3 变电所10kV馈线保护4112.4 变电所10KV母线保护41参考文献42致谢43附录44 ContentsIntroduction 1Abstract1Preface11 Design general situation1

4、1.1 Small zone general situation11.2 The design gist11.3 The design require21.4 Design result22 Defend thunder and connect the certainty of the solemn installation22.1 Sum22.2 Change the thunder that electricity defend connects the solemn system design22.3 The single corpus building defends thunder

5、to connect the solemn system design33 The weak electricity system design43.1Sum43.2 Cabled T.V. system43.3 Telephone system43.4 Network cloth line system53.5 Visitor vs. speak system54 The electricity light, heat and water expense design54.1 The light source intensity of illumination calculation54.2

6、 work room surface reflectance84.3 This engineering practice the surface reflectance84.4 The project lighting calculation94.5 The socket system144.6 The power supply into line design154.6.1 Standard layer door switch box system is calculated：154.6.2 Line route choice of resident switch box164.7 Cont

7、rol of lighting circuit and protection175 Design calculation175.1 Load analysis175.2 Reactive power calculation and compensation195.2.1 Electric power capacitor connection mode195.2.2 Reactive power compensation205.2.3 Reactive power compensation capacity205.2.4 The choice of the parallel capacito21

8、6 Substation location and form of choice226.1Sum226.2 Layout and structure for distribution by the community226.2.1 The structure of the transformer room236.2.2 The structure of the station246.3 The determination of substation location247 The determination of the main transformer sets and capacity25

9、7.1 The choice of transformer main transformer stations257.2 The choice of main transformer substation capacity258 The choice of substation main wiring scheme268.1 Evaluation of substation main wiring scheme268.2 The determination of substation main wiring scheme269 Short circuit current calculation

10、279.1 The significance and content of short circuit calculation279.2 Short circuit current calculation method279.3 Selection of short circuit calculation points2710 Transformer equipment selection and calibration at a time3110.1 Sum3110.2 High voltage equipment selection and calibration at a time311

11、0.3 Low voltage equipment selection and calibration at a time3311 The choice of high and low voltage line substation3611.1 High side line selection and chec3711.2 The choice of low voltage side circuit and check3812 Substation relay protection design4012.1Sum4012.2 The transformer protection setting

12、4012.3 Substation 10 kv feeder protection4112.4 10 kv substation busbar protection41Reference42Acknowledgement43iv大白峪回迁第三期民用电气设计摘要: 要提高高层建筑配电系统的可靠性，要正确选择各类配电设备的容量，就必须科学、合理的进行负荷计算。本文对符合计算中的相关问题进行了分析和探讨，就重要设备的容量选择做了较为详细的论述，提出了一些进一步提高配电系统可靠性的措施，并结合工程实例进行负荷计算，计算结果证明本文所述方法是正确合理，可在实际中应用。 配电室是电力系统的重要组成部分，直

13、接影响整个电力系统的安全与经济运行，是联系发电厂和用户的中间环节，起着变换和分配电能的作用。本毕业设计是根据国家相关标准和规范,其工程概况包括以下几个方面：首先，根据泰安电力公司高压供电方案等，提供资料，进行负荷计算，其次，选择变压器型号并进行布置，最后根据电压和计算电流选择低压电缆型号和低压配电设备，并进行布置，并对所有设备进行接地保护设置，最后绘制出相关的电气图纸。 关键词：高层建筑、电气设计、生命财产、精神需求、物质需求、规范、节能、强电、弱电 Great valley property 3 civil electrical designAbstract To improve the r

14、eliability of high-rise building power distribution system, to correct selection of various types of distribution equipment capacity, load calculation must be scientific and reasonable. In this paper, in accordance with calculation are analyzed and discussed the related issues, is the important equipment capacity to choose to be in detail, then puts forward some measures for further improving the reliability of the power distribution system, and combined with engineering example to carry on the load calculation, calculation results show that method des