《KV发电厂电气一次设计》由会员分享，可在线阅读，更多相关《KV发电厂电气一次设计（53页珍藏版）》请在金锄头文库上搜索。
1、作者：Pan Hon glia ng仅供个人学习毕业设计（论文）发电厂电气系统一次设计系别电力工程系专业班级电气08K5学生姓名刘维娜指导教师刘英培2012年6月发电厂电气一次系统设计摘要电力系统专业的毕业设计是比较综合的训练，它是我们将在校期间所学的专业知识进行 理论与实践的很好结合，运用理论知识和所学到的专业技能进行工程设计和科学研究，提 高分析问题和解决问题的能力在完成此设计过程中，我们可以学习电力工程设计、技术 问题研究的程序和方法，获得搜集资料、查阅文献、调查研究、方案比较、设计制图等多 方面训练，并进一步补充新知识和技能本毕业设计论文是2*50MW供热式火力发电厂电气 部分设计为了
2、保证供电的可靠性和一次性满足远期负荷的要求，按照远期负荷规划进行 设计建设，从而保证发电厂能够长期可靠供电.根据毕业设计任务书的要求，综合所学专业知识及发电厂电气设计手册等书籍的 有关内容，设计过程中完成了主变选择、电气主接线的拟定、短路计算、电气设备选择、 配电装置的规划、继电保护和自动装置的规划和防雷保护的规划等主要工作.在此期间，遇到的种种问题均通过反复比较、验算，并请教老师得以解决.毕业设计论文由设计说明书、设计计算书、一套图纸（电气主接线图、总平面布置图、配电装置断面图、防雷保护 图）组成内容较为详细，对今后扩建有一定的参考价值近年来，电力在世界各国能源和经济发展中的作用日益增长，它
3、已成为现代社会实用 最广、需要最快的能源发电厂的合理设计与建设是一个极其重要的组成部分 本次设计是 通过本人的精心设计论证完成的.整个设计过程中，全面细致的考虑工程设计的可靠性、 经济性、灵活性等诸多因素，最终完成本设计方案.通过完成此毕业设计论文，进一步领会我国电力工业建设的政策观念和经济观点，培养对工程技术、经济进行较全面的综合分 析能力.由于时间紧张和能力有限，此论文中难免会出现遗漏和错误，希望老师给予指点和更 正.关键词：火力发电厂；电气设计；短路计算；设备选择；配电装置AbstractThe professional graduate in system in electric po
4、wer design is once more synthesize of trainin g, it is we will duri ng the period of school a professi on for lear ning kno wledge proceed theories and practice very good comb in ati on, make use of the theories kno wledge proceeds with a professi on for lear ning tech ni cal ability engin eeri ng d
5、esig n with scie nce study, in crease an alyze problem with problem-solvi ng ability .In complete this desig n process, we can study the electric power engineering the design, investigative procedure in problem in technique with method, be collected in formati on, checked the cultural heritage, inv
6、estigate the research, project comparis on and design the various training in etc. in graphics, combine further complement the new information knows with technical ability.This graduate desig n thesis is a 2*5MW heat ing type thermal power pla nt electricity part desig n.For the sake of depe ndable
7、that guara ntee the power supply with a request that conten ted Iong-term burthen, carries according to the forward the programming proceeding design developments, from but guarantee to change to give or get an electric shock can Iong-term depe ndable power supply.Design the request of the mission b
8、ook according to the graduate, synthesize a programming for learning profession knowledge and Thermal power plant electricity desig n han dbook desig ned wait ing dogs- ear releva ntly conten ts, desig ning in the process completing lord changing choice, electricity lord connecting linear draw- up,
9、short circuit computing, electricity equipments choosing, going together with electricity equiping, after give or get an electric shock the protect ion with the program ming of the automatic device with defe nd protective program ming in thun der etc. main work.Here period, all kinds problems that m
10、eet all passes to compare, check to calculate again and again, and ask the can solution in teacher.Graduate to design the thesis from design the manual, design calculation book, a set of diagrams paper( the electricity lord connects the line diagram, total flat surface arranges the diagram and go to
11、gether with electricity equip cross sect ion diagram, defe nd thu nder protecti on diagram) con stitute.The contents is more detailed, to from now on exte nd to con sults certai nly value.For this year, electric power is in intern ati onal com mun ity en ergy with economy develop of the fun cti on i
12、n creases in creas in gly, it have become moder n the society is practical the most widely and n eed the quickest en ergy.Cha nge the reas on able desig n thagive or get an electric shock are a with developme nts very con stituti ng the part importa ntly.This desig n is at guidi ng teacher desce nd,
13、 pass ing on eself of desig n what argume nt complete with meticulous care.Whole desig n process in side, completely depe ndable, econo mic, vivid.etc. many factors that meticulous consideration engineering design, end complete this desig n project.Pass to complete this graduate desig n the thesis,
14、further appreciat ing the our country the policy idea of electric power industry developments with the economic standpoint, educates to proceed to the engineering technique, economy more completely to synthesize the analytical skill.Because time strain with ability limited, this thesis in side diffi
15、cult do not n eed to will appear the lapse with mistake, hope the teacher give to point out with make correct ion.Key word: Thermal power plant ;Electricity design ; short cicuit calculation ; The equipments choice ;electricity equips目录摘要 IVAbstract IV1前言 102电气主接线设计 112.1主接线的设计原则 112.2主接线设计的基本要求 122
16、.2.1 主接线可靠性的要求 122.2.2 主接线灵活性的要求 122.2.3 主接线经济性的要求 122.3电气主接线的选择和比较 132.3.1 主接线方案的拟定 13主接线各方案的讨论比较 132.3.3 主接线方案的初步选择 133主变压器的选择 133.1变压器的确定原则 133.2方案一变压器的选择 143.3方案三变压器的选择 154短路电流计算 164.1短路电流计算的目的 164.2计算步骤 164.3方案一的短路电流的计算 164.3.1 110kV 母线短路电流的计算 174.3.2 35kV母线短路电流的计算 184.3.3 10kV 母线短路电流的计算 184.3.4 10kV 出线短路电流的计算 194.3.5 联络变压器
