文档介绍：I 毕业论文题目三明职业技术学院低压供配电系统的设计专业: 电气工程及其自动化学院: 电气工程学院年级: 学****形式: 学号论文作者: 指导教师: 职称: 完成时间: II 郑重声明本人的学位论文是在导师指导下独立撰写并完成的,学位论文没有剽窃、抄袭、造假等违反学术道德、学术规范和侵权行为,否则,本人愿意承担由此而产生的法律责任和法律后果,特此郑重声明。学位论文作者(签名): 2015 年04月 11日 III 摘要本次毕业设计的主要任务是设计与研究三明职业技术学院的配电系统。该系统为 10kV 电源进线, 经过降压变电所变为 的低压, 供给学校各楼宇使用。供配电系统设计需要考虑很多方面,分析变电所各用户负荷并根据用户数据对相应的负荷进行计算,为了降低线路损耗,提高电网的功率因数,确定用户无功功率补偿装置。此外, 进行各种变压器的选择, 进而确定变电所的电气主接线方式, 再选择变电所高低压电气设备,最后确定整个学校变配电所的主接线图。本次供配电系统的设计包括了:对学校现有系统的分析、变配电所选址与布置、负荷计算、变压器选择、设备介绍、主接线形式、防雷与接地等。关键词:降压变电所,电力负荷,变压器,电气主接线 IV Abstract The main task of the graduation design is the power distribution system of the school. The system can turn 10kV voltage level into low-voltage supply by step-down substation to supply the building in our school. Many aspects needs to be considered in power supply and distribution system design. Analysis of the substation load and the user according to the user data toa corresponding load was calculated, in order to reduce the line loss, improve power factor, determine the user reactive pensation device. In addition, the choice ofa variety of transformers, and then determine the electrical substation main wiring mode, then choose the substation of high and low voltage electrical equipment, finally determine the whole school in the substation main wiring diagram. The design of power supply and distribution system includes: the school existing system analysis, substation ’s address and layout, load calculation, selection of equipment, transformer, the form of the main wiring, lightning protection and grounding. Keywords: substation, electrical load, transformer, the main electrical wiring V 目录摘要....................................................................................................................... III Abstract ...................................................................................................................... IV 目录...................................................................................................