毕业设计-110kV 变电站电气一次设计.doc

成人教育毕业设计成人教育毕业设计( (论文论文) )论文题目：论文题目：110kV110kV 变电站电气一次设计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 11201280 函授站： 河南郑州电力高等专科学校 指导教师姓名： 2 2 0 0 1 1 3 3 年年8 8 月月华华 北北 电电 力力 大大 学学 成成 人人 教教 育育 毕毕 业业 设设 计计 （（ 论论 文文 ））I摘要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；配电系统华华 北北 电电 力力 大大 学学 成成 人人 教教 育育 毕毕 业业 设设 计计 （（ 论论 文文 ））IIAbstractEnergy 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 responsibility, based on the 110 kv transformer substation electrical part of the design that I have a whole understanding of substations, meet up on a high.The graduation design mainly includes the following tasks: 1, the choice of the main transformer 2, main wiring and electrical design 4, 3, short-circuit current calculation, electrical equipment selection 6 lightning protection and grounding design, design of power distribution unit 7, 8, the related drawings.Keywords: energy; Substation; Grid; The power distribution system华华 北北 电电 力力 大大 学学 成成 人人 教教 育育 毕毕 业业 设设 计计 （（ 论论 文文 ））III目 录摘要摘要 ................................................................................................................................................I I前言前言 ................................................................................................................................................1 1第一章第一章 原始数据原始数据 ..........................................................................................................................2 2第二章第二章 主变压器容量、型号和台数的选择主变压器容量、型号和台数的选择 ..............................................................................3 32.1 概述...................................................................32.2 主变压器台数的选择.....................................................32.3 主变压器容量的选择.....................................................32.4 主变压器型式的选择.....................................................4第三章第三章 主接线的设计主接线的设计 ..................................................................................................................7 73.1 主接线概述.............................................................73.2 单母线接线及单母线分段接线 .............................................83.3 双母线接线及分段接线 ...................................................93.4 主接线设计原则........................................................103.5 主接线比较选择........................................................10第四章第四章 短路电流计算短路电流计算 ................................................................................................................14144.1 概述..................................................................144.2 短路计算的目的及假设 ..................................................144.3 计算变压器各绕组电抗 ..................................................154.4 计算系统及线路阻抗 ....................................................164.5 等值网络 ..............................................................17第五章第五章 电气设备的选择电气设备的选择 ............................................................................................................20205.1 概述 ..................................................................205.2 断路器的选择 ..........................................................215.3 隔离开关的选择 ........................................................255.4 高压熔断器的选择 ......................................................295.5 互感器的选择 ..........................................................。