文档介绍：内蒙古科技大学
本科生毕业设计说明书(毕业论文)
题目:220kV 变电站一次部分设计
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专业:电气工程及其自动化
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内蒙古科技大学毕业设计说明书(毕业论文)
220kV 变电站一次部分设计
摘要
电力工业是国民经济发展中最重要的基础能源产业,是国民经济
的第一基础产业,是关系国计民生的基础产业,是世界各国经济发
展战略中的优先发展重点。作为一种先进的生产力和基础产业,电
力行业对促进国民经济的发展和社会进步起到了重要作用。与社会
经济和社会发展有着十分密切的关系,它不仅是关系国家经济安全
的战略大问题,而且与人们的日常生活、社会稳定密切相关。
本设计讨论的是 220KV 变电站电气部分的设计。首先,根据任务书上
所给系统、线路所给负荷情况,通过对负荷的分析计算及供电范围确
定主变压器的台数、容量及型号,综合比较各种接线方式的特点、优
缺点,根据技术要求选择俩种较其它方案可靠的主接线方案;再对俩
种方案进行全面的技术、经济比较,确定最优秀的主接线方案;然后,
进行短路电流计算,为设计中需要的高压电气设备的选择、整定、校
验等方面做准备;继而进行对断路器、隔离开关、电压互感器、电流
互感器等电气设备进行选型,从而完成 220KV 变电站电气一次部分设
计。
关键字:变电站;短路计算;设备选择。
I
内蒙古科技大学毕业设计说明书(毕业论文)
220kV Substation Once Part Of The Design
Abstract
The power industry is the most important economic development based
on the energy industry, the first basic industry of the national economy, is a
colossal basic industries, is the world's economic development strategy of
development priorities. As an advanced productivity and basic industry, the
power industry in promoting national economic development and social
progress has played an important role. And socio-economic and social
development has a very close relationship, it is not only related to national
economic security strategy a big problem, but also with people's daily lives
and social stability are closely related.
This design is discussed 220KV substation electrical part of the design.
First, according to the mission statement on the system, the line given load
conditions, through the power load calculation and analysis to determine
the scope of the main transformer station number, capacity and model,
parison of various wiring characteristics, advantages
and disadvantages, according to the technical requirements select two
kinds of reliable than other solutions main wiring scheme; longer two
kinds of programs to conduct prehensive technical and economic
comparison, to determine the best main wiring scheme; t