文档介绍：西安交通大学
毕业设计(论文)
论文题目: 220KV降压变电所设计
学生姓名: XXXX 学号 7
年级、专业、层次: 08电力专升本
函授站: 神木教育中心
二○一三年一月
摘要
随着我国科学技术的发展,特别是计算机技术的进步,电力系统对变电所的要求也越来越高。
本设计主要介绍了220KV变电站的主接线设计及变压器的选择,变电所电气主接线设计是依据变电所的输电电压等级和变电所的性质,选择出一种与变电所在系统中的位置和作用相适应的接线方式。在经济角度上要考虑周全,结合最新技术,最终确定出在技术上合理、经济上可行的最终方案。主变压器容量、台数直接影响主接线的形式和配电装置的结构。它的确定除依据传递容量基本原始资料外,还应根据电力系统5~10年发展规划、输送功率大小、馈线回路数、电压等级以及接入系统的紧密程度等因素,进行综合分析和合理选择。高压电气设备的选择在保证供配电安全可靠地前提下,力争做到技术先进、经济合理。配电装置是变电站的重要组成部分,其选择要保证运行安全可靠,便于检修、巡视和操作等。变电所要采取有效的防雷措施,保证电气设备的安全运行。
关键词:变电所;电气主接线;变压器;高压电器设备;配电装置
Abstract
With the development of science and technology in China, puting technology has advanced, the power system demands on substation more and more.
The article is mainly introduced the selection of the 220KV substation, which about the main wiring design and transformers, The main wiring design is based on the voltage level and the nature of the substation, than select a connection adapt to the position and role of the substation in the system. In the economic point of view we need to be thoughtful, bine with the latest technology, finally make a reasonable solution on the economy and technology. The main transformer capacity and the numbers directly affect to the main wiring in the form and the electrical equipment in the structure. It’s sure except according to the original data that should also be according to development planning 5 ~ 10 years and transmission power size and feeder route back and voltage level and the close degree of the access system factors such as of the power system. Than make a reasonable choice. The choice of the high-voltage electrical equipment under the premise that guarantee safe and reliable power supply and distribution system, strive to achieve advanced technology and reasonable economy. Distribution equipment is an ponent of the substation, which choice to ensure the safe and reliable running, easy maintenance, patrol and operation, etc. Substation to be effective lightning protection measures, to ensure the safe