毕业设计-110kV 变电站电气一次设计.doc

成人教育毕业设计(论文) 论文题目：110kV变电站电气一次设计 年级.专业.层次： 11级电气工程及其自动化专升本 学生姓名： 学号 函授站： 河南郑州电力高等专科学校 指导教师姓名： 2013年8月 华北电力大学成人教育毕业设计（论文） PAGE \* MERGEFORMATIV 摘要 能源是社会生产力的重要基础，随着社会生产的不断发展，人类使用能源不仅在数量上越来越多，在品种及构成上也发生了很大的变化,人类对能源质量也要求越来越高。电力是能源工业、基础工业，在国家建设和国民经济发展中占据十分重要的地位，是实现国家现代化的战略重点。电能也是发展国民经济的基础，是一种无形的、不能大量存储的二次能源。电能的发、变、送、配和用电，几乎是在同时瞬间完成的，须随时保持功率平衡。要满足国民经济发展的要求，电力工业必须超前发展，这是世界发展规律。 因此，做好电力规划，加强电网建设，就尤为重要,而变电站在改变或调整电压等方面在电力系统中起着重要的作用,它承担着变换电压、接受和分配电能、控制电力的流向和调整电压的责任,通过对110kV变电站电气部分设计使我对变电站有了一个整体的了解，认识上上升了一个高度。 该毕业设计主要包括以下任务：1、主变压器的选择2、主接线和所用电设计3、短路电流计算 4、电气设备选择6、配电装置设计7、防雷及接地设计8、相关图纸。 关键词： 能源；变电站；电网；配电系统 Abstract Energy is the important foundation of social productivity, with the continuous development of social production, human energy use not only in quantity more and more, also on the variety and composition, great changes have taken place in human on energy demand is higher and higher quality. Electric power is the energy industry,basic industries, in the national construction and national economic development occupies an important position, is the realization of the strategic focus of modernization of the country. Electricity is the basis for the development of national economy, is a kind of invisible, not a large number of secondary energy storage. The hair of electricity, change, send, distribution and utilization, is almost at the same time instantaneous, must be a balance of power at any time. To meet the requirements of the development of national economy, electric power industry must develop in advance, this is the law of development. Electricity planning well, therefore, to strengthen the construction of power grid, it is particularly important, and in such aspects as change or adjust the voltage transformer substation in electric power system plays an important role, it bear the voltage transform, accept, and distribution of electrical energy, control the flow of electricity and adjust the voltage of the