220KV变电站主接线毕业设计 (2)

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1、 I 220KV 变电站主接线设计 摘摘 要要 展望未来，我国能否在本世纪中叶基本实现现代化，相当大的程度上取决于能源。电 力工业是国民经济的基础，是重要的支柱产业，它与国家的兴衰和人民的安康有着密切的 关系，随着经济的发展和现代工业的建设的迅速崛起，供电系统的设计越来越全面、系统， 工厂用电量迅速增长，对电能质量、技术经济状况、供电的可靠性指标也日益提高，因此 对供电设计也有了更高、更完善的要求。 变电站作为电能传输与控制的枢纽必须改变传统的设计和控制模式，才能适应现代电 力系统、现代化工业生产和社会生活的发展趋势。本设计讨论的是 220kV 变电站电气部分 设计（一次系统） ，首先根据原始

2、资料进行分析，负荷计算选择主变压器，然后在此基础上 进行主接线设计，再进行短路计算，导体和电气设备的选择，最后进行防雷接地设计。 关键词关键词：变电站； 负荷计算； 短路电流； 设备选择； II 220 KV substation Lord wiring design Abstract Looking ahead, our ability to achieve the middle of this century, modernization, to a large extent depends on energy. The power industry is the basis of the

3、 national economy is an important pillar industry, the rise and fall with the State and the people closely related to the well-being, along with economic development and the rapid development of modern industry rise, more and more power supply system design comprehensive, systematic, rapid growth of

4、 plant consumption for power quality, technical and economic conditions, reliability of electricity supply are increasing, and therefore also have higher power supply design, better requirements. Substation as a hub for power transmission and control to change the traditional design and control mode, to adapt to the modern power system, modernization of industrial production and the development trend of social life. The design discussion is part of 220KV electrical substation design (a sy