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1、扬州大学本科生毕业设计(论文)本科生毕业论文毕业论文题目 苏北三合板加工中心双回路 10KV 变配电所设计所 在 学 院 水利与能源动力工程学院 专 业 及 班 级 电气工程及其自动化 电气 10 班 完 成 日 期 2015 年 6 月 扬州大学本科生毕业设计(论文)I摘 要本设计针对苏北三合板 10 千伏变电所的有电负荷的现状、经济、综合技术等方面因素确定该地区的供电工程设计和技术应用为主线，论述了计算负荷，确定负荷数据，并进行无功功率补偿设计；供配电系统一次接线设计，选择变电所变压器台数、容量及型号变电所所址和型式的选择；计算短路电流选择各电线电缆导体截面及电线电缆的敷设；电器、电线电缆
2、及其选择，变电所电气部分的设计以及供电系统的继电保护。同时也分析了二次部分的设计，说明二次部分就是对变电所的一次设备的控制、监测、指示和保护。设备的安装必须按照供配电系统设计规范 GB5005295、10kV 及以下变电所设计规范 GB5005394、低压配电设计规范 GB5005495、民用建筑电气设计规范 JGJ/T1692等国家标准和范围规定，正确选择电器设备及正常情况下的监视系统和正常情况下的保护系统，考虑到各种人身安全的技术措施,接线应满足不同负荷的不中短供电要求。还要对变配电所电气装置布置及照明按照照明规范进行设计，在满足以上的情况满足的条件下，保障设计投资少。关键词：变电所，短路
3、电流，负荷计算，系统主接线扬州大学本科生毕业设计(论文)IIAbstractThis design in view of the north jiangsu three-ply board 10 kv substation electricity load status, economy, comprehensive technology and so on factors to determine the region of power engineering and technology as the main line, discusses the calculation of load
4、, load data is determined, and reactive power compensation design; A power supply and distribution system wiring design, choice of substation transformer sets, capacity and the selection of substation site and type; Calculation of short circuit current choose the cable conductor cross section and wi
5、re and cable laying; Electrical appliances, wire and cable and selection, the design of the electrical substation and the power supply system of relay protection. Second part of the design were analyzed at the same time, showed the second part is to a substation equipment control, monitoring, and pr
6、otection. Equipment installation must be in accordance with the power supply and distribution system design specifications GB50052-95, 10 kv and below GB50053-94 substation design standard, low voltage power distribution design specification GB50054-95, the civil construction electrical design speci
7、fication (JGJ/T16-92 standard and scope of state regulations, such as the correct selection of electrical equipment and under normal circumstances the surveillance system and protection system under normal circumstances, considering all kinds of safety technical measures, should satisfy the requirem
8、ent of the different load is not short of power supply wiring. Also of variable power distribution electrical equipment arrangement and the design, the lighting shall be carried out in accordance with the lighting specifications above meet the case, security design and less investment, but not to in
9、vest at least for the best solution, because investment quotas may affect the flexibility and economy, so that factory power outages, two-string fiddle factory more economic loss. Connection ways should also be considered to meet the needs of present and future development needs.Key Words: Substatio
10、n, short-circuit current, the system master wiring扬州大学本科生毕业设计(论文)III目录摘 要.I 1.工程概况与设计依据.1 1.1 工程概况.1 1.2 设计依据.2 2 负荷计算及无功补偿设计.3 2.1 负荷数据.3 2.2 负荷计算.4 2.2.1 照明负荷低压配电干线负荷计算.4 2.2.2 电力负荷与平时消防负荷低压配电干线负荷计算.5 2.2.3 变电所负荷.5 3 供配电系统一次接线设计.6 3.1 负荷分级及供电电源.6 3.2 电压选择与电能质量.6 3.3 电力变压器选择.6 3.4 变电所电气主接线设计.10 3.4.1 变电所高压侧电气主接线设计.
