1、 本科毕业设计（论文）本科毕业设计（论文） *厂总降压变电所厂总降压变电所 及高压配电系统设计及高压配电系统设计 学 院 专 业 电气工程及其自动化电气工程及其自动化 年级班别 学 号 学生姓名 指导教师 年 月 摘摘 要要 一间冶金机械修造厂如果对输配电系统进行一个完善的规划， 能很好地节约 资金、合理规划用地、降低电能损耗、提高电压质量、保证系统的正常运行。本 论文对输配电进行全面的设计，内容分四大部分。 第一部分先从论文的背景和目的进行阐述， 然后对原始资料来进行初步的分 析，再确定好本论文的设计步骤。第二部分确定好冶金厂各部分的负荷，进行精 确的计算，通过无功补偿来提高系统的功率因数减
2、少电能的损耗。根据负荷的重 要性和负荷的大小进行初步的变压器选择和合理的主接线、供电线路的设计。第 三部分主要是确保系统的安全，首先对系统进行精确的短路计算，然后根据所得 到的短路电流和冲击电流进行一系列的高低压设备的选择与校验， 保证系统的正 常运行。第四部分根据设计的要求，最后进行防雷保护措施的选择和接地装置的 设计，增加系统的安全性。 在论文的最后还附上设计的图纸和计算过程。 关键词关键词： 负荷计算, 主接线设计，短路计算，配电装置 Abstract A Metallurgical Machinery factory if the transmission and distributi
3、on system have a sound planning, savings can be good, reasonable land use planning, reducing power loss, upgrade quality and ensure the normal operation of systems. In this paper, transmission and distribution of a comprehensive design, content is divided into four parts. The first part discussed th
4、e background and purpose, then the raw data to conduct a preliminary analysis, to determine a good step in the design of this thesis. The second part of the metallurgical have plant to identify good part of the load, an accurate calculation, through the reactive power compensation system to improve
5、the power factor to reduce the power loss. According to load the importance and the size of a reasonable load the main cables, power supply lines and preliminary design of the transformer choice. The third part is to ensure that the safety system, first of all, the system accurate short-circuit, and
6、 then be the basis of the current short-circuit current and impact of a series of high and low voltage equipment selection and validation to ensure the normal operation of systems. The fourth part of the design in accordance with the requirements of lightning protection measures for the final selection and ground equipment design, increased system security. In the final
