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1、ocusing on ways and means of improving and upgrading work, further development of three to split. (A) fully grasp no unauthorised created. The township no unauthorised created the existing building one household, one document survey and file storage work must be unconditional and full coverage. Main
2、 corridor leading to the town (road, river) village, the Central built-up area of the town on both sides must be to create a no unauthorised village. According to five hundred villages created and shanty towns, villages, old houses, reconstruction of old plant, expand create, upgrading creates files
3、, the real no unauthorised village created into the benefit of the people of very good thing. (B) to strictly manage count as unauthorised controls. Promoting the new control work to move the center of gravity, management measures to the front, and earnestly pipes effectively. A strict new unauthori
4、sed network responsibility. Sectors such as land, housing and basic stations (stations) and the Township of grid accountability mechanisms must be strictly in accordance with the new regulatory requirements, effective implementation of the area of responsibility of the new inspections, suppression,
5、demolition work to ensure that the new zero tolerance. Second, public security, water, electricity, water, oceans and fisheries, tourism collaboration, market supervision departments should strictly enforce the illegal construction of disposal of relevant provisions of the regulations, effective ful
6、filment of responsibilities, particularly in electricity and water supply, and other units may not be new illegal buildings to supply water and electricity supply. While more regulation to prevent personal privacy violations. Illicit trading in illegal construction in the Ministry of public security
7、 sector to strictly from the blow. Three is to create additional offence reporting system of incentives. According to building law and covers an area of nature, to report timely degree divided report grade, effective after the removal of certain incentives. (C) integrated implementation , building d
8、emolition, modification, use combination. Demolition is the means and purpose built is. To adhere to the building demolished, combination of construction and demolition waste, demolished with combined efforts to improve the scientific level of three to split; second, we must pay attention to three t
9、o split and five hundred and five water treatment, three of the four sides, the shackDistrict transformation, and dangerous old room transformation and two road sides, series work organic combined up, active do River, and along demolition work, and manpower advance village in the, and old residentia
10、l demolition work, to improved masses housing conditions and live environment; three to put three modified a split as traditional low, and small, and bulk industry structure transformation upgrade of important initiatives to caught, speed up advance industry Park, effective optimization park environ
11、ment220kV 大型变电所电气主接线方案与设备布置初步设计and improve idle land of utilization, real achieved environment improved and productivity development mutual promoting total win. Five, firmly implement, promoting work ahead, to create highlights. Third deployment, implementation of seven, then it is imperative to str
12、engthen responsibility and improve the mechanisms and implementation. All localities and departments must be convinced that goals, going all out, mustering spirit, work together to ensure that this years objectives carry out tasks, at the forefront. First, we must strengthen the leadership to implem
13、ent. Departments at all levels should always work and rural five water treatment, three to split in an important position, and carry the main responsibility, main leader personally, leaders arrested and layers of responsibility rank transmission pressure established hierarchical accountability, and
14、work together to promote the work of the mechanism, a concerted effort pay attention to implementation. County nongban, flood, three to one down to further play a leading catch total, integrated and coordinated role of all kinds is long, Sheriff Inspector to effectively fulfill their responsibilitie
15、s, formed the alignment on the fire line and management a lively situation. Second, we must strengthen the test implementation of the Governor. Role play the Governor got the baton, for agricultural and rural focus and five water treatment, three to split work, refine improve assessment methods and
16、evaluation system, accurate assessment. Combined with dare play, tree benchmark style building five major operations, carry on and gain firsthand experience of supervision, in particular, to strengthen the focus on the long signs go left, names such as supervision, urged all levels longer on duty in
17、 place. Through the supervisory assessment, to promote habits, stimulating power. Third, we must strengthen implementation style. Departments at all levels to work in rural areas and five water treatment, three to split as training cadres for major platforms, compete against large examination room,
18、inspection cadres work performance of the ring, water control and the Japanese pulled a workout, training, discovery and selection of cadres. Than good catch up, first to excellence-oriented. Party members and cadres at all levels must adhere to the rural, water control and the Japanese pulled a gra
19、ss-roots, put down the shelf, leaned pragmatic style, the spirit of play, become a benchmark model. Four, we must strengthen propaganda implementation. Comprehensive utilization of micro-credit, micro-blogging, new media, mining, summarizing, good publicity work in the countryside and five water tre
20、atment, three to split advanced models, point to gather positive energy for the community to see the results of our work in time, increase public awareness, participation rates, satisfaction and support. Play gongqingfu, a mass organization and grass-roots such as schools, communityThe role of一、毕业设计
21、（论文）任务课题内容地区变电所是整个电力系统的中间环节，其地位相当重要。目前我国电力系统中的 220kV 变电所一般属于地区型变电所。根据所给定的设计资料对一个 220kV 大型地区变电所的电气部分进行初步设计，包括：通过比较确定电气主接线；确定主变压器的台数、容量和型式；确定所用电接线、所用变压器的台数、容量和型式；确定各电压级的配电装置型式；确定电压互感器和电流互感器的配置；选择各电压级各主要电气设备；进行继电保护配置和防雷规划设计。设计要求：按学校规定的格式要求撰写论文或说明书，并绘制指定图纸。课题任务要求1熟悉变电所电气一次部分初步设计的范围和步骤，掌握工程设计方法，树立工程设计理念；
22、2熟练掌握 AutoCAD 绘图软件；3根据原始资料，通过相应的分析和计算，拟定电气主接线方案，选择主变压器的台数、容量和型式，选择各电压级各主要电气设备，进行电压互感器和电流互感器的配置，确定各电压级的配电装置型式，完成设备布置和初步的继电保护配置和防雷规划设计；4完成毕业设计论文的写作和图纸绘制；5总结课题，并通过毕业论文答辩。课题完成后应提交的资料（或图表、设计图纸）1毕业设计论文及相关图纸；2英文翻译内容：原文和译文；3学校要求提交的其他设计文件和材料。主要参考文献与外文翻译文件（由指导教师选定）1 范锡普. 发电厂电气部分M，中国电力出版社，1992，102-129，168-206.
23、2 西北电力设计院.电力工程设计手册M，上海科学技术出版社，1972,53-88,255-279.3 西北电力设计院. 电力工程电气设计手册（电气一次部分）M，中国电力出版社，1987,45-62,119-123,214-260.4 西北电力设计院. 电力工程电气设备手册M，中国电力出版社，1990.5 黄纯华. 发电厂电气部分课程设计参考资料M，中国电力出版社，1987.6 丁毓山. 变电所设计M，辽宁科学技术出版社，1993.7 郭启全. AutoCAD2000 基础教程M，北京理工大学，2000.8 郑忠. 新编工厂电气设备手册M,兵器工业出版社,1994.9 涂光瑜. 汽轮发电机及电气
24、设备M,中国电力出版社,1998,179-288.10 陈尚发. 大型发电厂电气主接线探讨J，中国电力，2003 年 36 卷 7 期，起止页码：64-66.11 苏志杨. 大型电厂 500KV 电气主接线研究J，电力技术经济，2003 年 4 期，起止页码：34-35.12 杨民，寇正华. 电站电气一次设计J，海河水利，1997 年 3 期，起止页码：3536.13 Srdjan Skok ph.D. Transient Analysis of Auxiliary DC Installations in Power Plantsand SubstationsJ,IEEE CHF,8-11 N
25、ov. 2004 Page(s):277 280.14 IEEE Recommended Practice for the Design of DC Auxiliary Power Systems forGenerating StationsJ,IEEE STD 946-1992,Decemeber,2nd 1992.注：1. 此任务书由指导教师填写。如不够填写，可另加页。2. 此任务书最迟必须在毕业设计（论文）开始前一周下达给学生。3. 此任务书可从教务处网页表格下载区下载二、毕业设计（论文）工作进度计划表注：1. 此表由指导教师填写；2. 此表每个学生人手一份，作为毕业设计（论文）检查工作
26、进度之依据；3. 进度安排请用“一”在相应位置画出。序号毕 业 设 计（论 文）工 作 任 务工 作 进 度 日 程 安 排周次12345678910111213141516171819201布置任务，收集资料2课题开题，外文翻译3资料分析，方案设计4相关计算，设备选型5装置布置，图纸绘制6撰写论文，整理成果7提交材料，毕业答辩8910三、学生完成毕业设计（论文）阶段任务情况检查表注：1. 此表应由指导教师认真填写。阶段分布由各学院自行决定。2. “组织纪律”一档应按长沙理工大学学生学籍管理实施办法精神，根据学生具体执行情况，如实填写。3. “完成任务情况”一档应按学生是否按进度保质保量完成任
27、务的情况填写。包括优点，存在的问题与建议4. 对违纪和不能按时完成任务者，指导教师可根据情节轻重对该生提出忠告并督促其完成。时间第 一 阶 段第 二 阶 段第 三 阶 段内容组织纪律完成任务情况组织纪律完成任务情况组织纪律完成任务情况检查记录教师签字签字 日期签字 日期签字 日期四、学生毕业设计（论文）装袋要求：1. 毕业设计（论文）按以下排列顺序印刷与装订成一本（撰写规范见教务处网页）。(1) 封面(3) 毕业设计（论文）任务书(5) 英文摘要(7) 正文(9) 致谢(11) 附件 1：开题报告（文献综述）(2) 扉 页(4) 中文摘要(6) 目录(8) 参考文献(10) 附录（公式的推演、
28、图表、程序等）(12) 附件 2：译文及原文影印件2. 需单独装订的图纸（设计类）按顺序装订成一本。3. 修改稿（经、管、文法类专业）按顺序装订成一本。4.毕业设计(论文)成绩评定册一份。5论文电子文档由各学院收集保存。学生送交全部文件日期学生（签名）指导教师验收（签名）220kV 大型变电所电气主接线方案与设备布置初步设计220kV 大型变电所电气主接线方案与设备布置初步设计摘要本次设计主要是一次变电所电气部分的设计，并做出阐述和说明。地区变电所是整个电力系统的中间环节，其地位相当重要。目前我国电力系统中的 220kV变电所一般属于地区型变电所。根据所给定的设计资料对一个 220kV 大型地
29、区变电所的电气部分进行初步设计，包括：通过比较确定电气主接线；确定主变压器的台数、容量和型式；确定所用电接线、所用变压器的台数、容量和型式；确定各电压级的配电装置型式；确定电压互感器和电流互感器的配置；选择各电压级各主要电气设备；进行继电保护配置和防雷规划设计。关键词：变电站；短路电流；电气设备；配电装置220kV 大型变电所电气主接线方案与设备布置初步设计THE PRELIMINARY DESIGN OF THE MAINELECTRICAL WIRING SCHEME AND EQUIPMENTLAYOUT OF 220KV LARGE SUBSTATIONABSTRACTThe desi
30、gn is based on summarizing our coumtrys substation design andoperation.Areas of the whole power system are substation intermediate links, theirstatus is quite important. At present our country electric power system of 220kVsubstation belongs to commonly area type substation. According to the data fo
31、r agiven design the electrical substation of 220kV large areas of preliminary design,including: with comparison; the main electrical wiring Sure the main transformerssets, capacity and type; To ensure that the electric wiring, use transformer sets,capacity and type; Confirm the voltage level distrib
32、ution device type; Sure voltagetransformer and current transformer configuration; Select each voltage level; the mainelectrical equipment To relay protection configuration and lightning protectionplanning and design.Key words: Substation ； shortcircuit currents ； electric equipment ； powerdistributi
33、on equipment220kV 大型变电所电气主接线方案与设备布置初步设计目录引言. 112设计说明书. 211 电气主接线设计 .21.1.1 220 kV 电气主接线.21.1.2 110 kV 电气主接线.31.1.3 10 kV 电气主接线.41.1.4 所用电接线. 412 负荷计算及变压器选择 .51.2.1 负荷计算. 51.2.2 主变台数、容量和型式的确定.51.2.3 所用变台数、容量和型式的确定. 71.3 最大持续工作电流及短路计算 .81.3.1 各回路最大持续工作电流.81.3.2 短路电流计算点的确定和短路电流计算结果. 81.4 主要电气设备选择 .101.
34、4.1 高压断路器的选择.121.4.2 隔离开关的选择.121.4.3 母线的选择. 121.4.4 绝缘子和穿墙套管的选择.131.4.5 电流互感器的配置和选择.131.4.6 电压互感器的配置和选择.141.4.7 各主要电气设备选择结果一览表. 15设计计算书. 1821 短路电流计算书 .182.1.1 短路计算等值电路图.18220kV 大型变电所电气主接线方案与设备布置初步设计2.1.2 短路电流的计算.1822 主要电气设备选择计算书 .232.2.1 高压断路器的选择计算.232.2.2 隔离开关的选择计算.252.2.3 母线的选择计算.272.2.4 绝缘子和穿墙套管的
35、选择计算. 282.2.5 电流互感器的选择计算.292.2.6 电压互感器的选择计算.302.2.7 避雷针保护范围的计算.302.2.8 避雷器的选择.31345配电装置. 3231 配电装置设计的基本要求 .3232 配电装置的选型和布置 .32防雷保护的设计. 3441 概述 . 344.1.1 直击雷过电压保护.344.1.2 雷电侵入波保护.3442 避雷针和避雷器的配置原则 .344.2.1 避雷针的配置原则.344.2.2 避雷器的配置原则.3543 避雷针的选择 . 354.3.1 多支避雷针保护范围的确定方法. 354.3.2 本变电站避雷针的选择结果.3544 避雷针的选择 . 354.4.1 避雷器类型的选择.354.4.2 ZnO 避雷器的选择原则.354.4.3 避雷器的选择结果 .36继电保护配置. 37220kV 大型变电所电气主接线方案与设备布置初步设计51 概述 . 375.1.1 继电保护的作用 .