容提要本次设计的课题是住宅小区供电系统的分析与设计，根据设计的基本要求，运用所学的相关知识，查阅相关的资料，进行供电系统的初步设计。本次设计的基本流程是：进行负荷计算，根据负荷计算结果进行变压器的选择并确定供电方案，之后依次进行短路电流的计算，高、低压电器设备的选择和校验，继电保护，防雷与接地保护等。在这一框架下，根据国家的标准，结合小区实际情况完成设计 。本次设计考虑到了供电系统的安全、可靠、灵活、经济四项基本要求，在选择供电方案和电器设备时，优先选择低能耗并且满足设计要求的方案和设备，除此以外，还考虑到了小区未来的负荷进展情况，做到了远近期的结合，留有扩建的可能性。关键词:负荷统计；变压器选择；短路计算；继电保护AbstractThe subject of this graduation project is the design of the residence area power supply system. According to the basic requirements of the design, using of the relevant knowledge, searching relevant information. Begin the design of the power supply system. The basic process of design is load statistics, according to the load calculation results to select the transformer, then begin the Short-circuit calculation, selection and calibration of high and low voltage electrical equipment, relay protection, lightning arrest and grounding protection, In this framework, according to the national standards, combined with the actual situation of residential to complete the graduation project. This design considerations to the power supply system of safe, reliable, flexible and economic four basic requirements, in the choice of power supply plan and electrical equipment, preferred select low energy consume and meet the design requirements of the plan and equipment. Besides, consider to the residential future of the loads, combination of recent and forward, it support the possibility of the expansion.Keywords:Loadstatistics; Transformer selection; Short-circuit calculation; Relay protection目...
