【作者】 张斌；

【导师】 王淳； 吴志勇；

【作者基本信息】 南昌大学 ， 电气工程（专业学位）， 2021， 硕士

【摘要】 近几十年来,我国经济发展迅速,与之相适应,房地产行业如雨后春笋得到迅猛发展。一些新的建筑技术也随之出现并逐步被广泛应用,尤其是在建筑电气方面表现突出,这主要表现在以下两个方面:一方面是对传统的电气设备的改进,另一方面是作为新技术的信息技术渗透应用在电气领域,使得电气设备具有智能化,比如微机综合保护技术,在高压出线柜上安装微机综合保护仪,当回路出现过流、欠压、过压、三相不平衡等情况危及电气设备安全和正常运行时,保护仪可以迅速作出相应动作,使得电气设备运行更顺畅、安全;再如信息技术在火灾监控领域的应用使得建筑在防火和灭火能力上得到大大的提高。本文选择了南昌市的某个新建的住宅小区工程进行研究设计,将近些年来的一些新的改进后的电气技术、设备以及新的信息技术应用融合在该工程中,使得该小区更安全可靠、更智能、更节能。首先对本工程的负荷进行计算、选择变压器的容量和变压器的种类以及联结组别;设计了高压配电系统,包含高压开关柜柜型的选择,进线柜、出线柜、PT柜内部的负荷开关、电流互感器、电压互感器及电力仪表设计;根据负荷情况设计了低压配电系统,包含低压开关柜柜型的选择,进线柜、出线柜、电容柜内部的电力开关、电容器组、电流互感器的设计以及每一路出线回路的负荷计算和主要部件的选择;对各种电缆的特点和使用场合进行了分析,根据本工程的要求选择了合适的电缆。并对电缆的截面按照载流量的标准进行了选择,还对其按照短路热稳定的公式进行了校验。然后就是对平面布置的设计,根据根据设备的尺寸和场地的大小,以及各标准和规范的要求。对住宅公变开闭所、1#公变变电所、2#公变变电所及专变变电所的设备平面布置设计;还设计了电缆沟的形式和尺寸、电缆沟内的支架、钢板做的电缆沟盖板等;接着计算了应急电源柴油发电机负荷,在平面上布置了柴油发电机;然后进行照明设计,分析了照明方式和种类,也考虑了光源的选择问题,举例设计了照明配电系图和平面图。最后设计了本工程的消防电气部分和防雷、接地系统以相应的安全措施,先划分好了防火分区再分析了消防电源及其配电,设计了与消防相关的双电源箱的系统图,接着对火灾监控系统及应急照明、防雷、接地系统及安全措施进行了设计。更多还原

【Abstract】 In recent decades,China’s economy has developed rapidly,with which the real estate industry has sprung up.Some new building technologies have emerged and gradually been widely used,especially in building electricity,which is mainly reflected in the following two aspects:on the one hand,the improvement of traditional electrical equipment;on the other hand,the penetration and application of information technology as a new technology in the electrical field,making electrical equipment intelligent,such as microcomputer integrated protection technology,When over-current,under voltage,over-voltage,three-phase imbalance and other conditions occur in the circuit,endangering the safety and normal operation of electrical equipment,the protection device can quickly make corresponding actions to make the electrical equipment run more smoothly and safely;Another example is the application of information technology in the field of fire monitoring,which greatly improves the fire prevention and extinguishing capacity of buildings.In this paper,a new residential district project in Nanchang city is selected for research and design.Some new improved electrical technology,equipment and new information technology applications in recent years are integrated into the project to make the district more safe,reliable,intelligent and energy-saving.Firstly,the load of the project is calculated,and the capacity,type and connection group of the transformer are selected;The high-voltage distribution system is designed,including the selection of high-voltage switch cabinet type,the design of load switch,current transformer,voltage transformer and power instrument in incoming cabinet,outgoing cabinet and Pt cabinet;According to the load condition,the low-voltage distribution system is designed,including the selection of low-voltage switch cabinet type,the design of power switch,capacitor bank and current transformer inside the incoming cabinet,outgoing cabinet and capacitor cabinet,as well as the load calculation of each outgoing circuit and the selection of main components;The characteristics and application occasions of various cables are analyzed,and the appropriate cables are selected according to the requirements of the project.The cross-section of the cable is selected according to the current carrying capacity standard,and it is checked according to the short-circuit thermal stability formula.Then is the plane layout design,according to the size of the equipment and the size of the site,as well as the requirements of various standards and specifications.The layout design of residential public substation,1 Public substation,2 public substation and special substation;The form and size of the cable trench,the bracket in the trench and the cover plate made of steel plate are also designed;Then,the load of emergency power diesel generator is calculated,and the diesel generator is arranged on the plane;Then the lighting design is carried out,the lighting mode and type are analyzed,and the selection of light source is also considered.The lighting power distribution system diagram and plan are designed with examples.Finally,the fire electrical part,lightning protection and grounding system of the project are designed.With the corresponding safety measures,the fire compartment is divided first,then the fire power supply and its distribution are analyzed,and the system diagram of dual power box related to fire protection is designed.Then the fire monitoring system,emergency lighting,lightning protection and grounding system and safety measures are designed.更多还原