110kV变电站电气一次系统方案设计书 联系客服

发布时间 : 星期日 文章110kV变电站电气一次系统方案设计书更新完毕开始阅读4a70476a91c69ec3d5bbfd0a79563c1ec4dad76c

个人收集整理 勿做商业用途

封 面

个人收集整理 勿做商业用途

作者:Pan Hongliang

仅供个人学习

110kV变电站电气一次系统设计

110kV 变电所电气一次系统设计 (110/35/10kV,2/6/12 回出线) 摘 要

电能是现代城市发展的主要能源和动力。随着现代文明的发展与进步,社会生产和生 活对

个人收集整理 勿做商业用途

电能供应的质量和管理提出了越来越高的要求。城市供电系统的核心部分是变电所, 因此,设计和建造一个安全、经济的变电所,是极为重要的。本变电所设计除了注重变电 所设计的基本计算外,对于主接线的选择与论证等都作了充分的说明,其主要内容包括: 变电所主接线方案的选择,进出线的选择;变电所主变压器台数、容量和型式的确定;短 路点的确定与短路电流的计算,电气设备的选择(断路器,隔离开关,电压互感器,电流 互感器,避雷器) ;配电装置设计和总平面布置;防雷保护与接地系统的设计。另外,绘 制了六张图纸,包括:电气主接线图,电气总平面布置图、防雷接地图、110kV 接线断面 图、35kV 配电装置平面与断面图、110kV 母线断面图。图纸规格与布图规范都按照了电力 系统相关的图纸要求来进行绘制。

关键词:变电所;电气主接线;电气设备;设计 I

毕业设计(论文) A DESIGN OF ELETRIC SYSTEM FOR 110kV TERMINAL TRANSFORMER SUBSTATION Abstract Electric energy is the main energy and dynamism of modern city development. With development and progress of modern civilization, social production and is it put forward high request more and more to quality and management that electric energy supply to live. The core of city for supplying power is transformer. It is very important to design and build one safe and economical transformer substation. Besides paying attention to basic calculation of design for transformer substation, the design make satisfying narration toward choice and argumentation of main connection. The main content of this design include the choice of main connection for transformer substation; the choice of pass in and out line; the certainty of number, capacitance and model for main transformer; the certainty of short circuit points and calculation of short circuit; the choice electric equipment(breaker, insulate switch, voltage mutual-inductance implement, current mutual-inductance implement, arrester); the design for distribution and disposal for chief plane; the design for lightning proof protection and earth system. In addition, drawing six blueprints include the main wiring diagram; the disposal drawing of electric plane; the drawing of lightning proof protection and earth system; the drawing of 110kV connection; switchgear layout and sections of 35 kV; the drawing of 110 kV bus connection. Both the specification of drawing and the criterion of disposal is based on requirement of drawing to electric power system.

Keywords: Transformer substation; Main connection; Electric equipment; Design II 目 录

摘 要 ..................................................................... I ABSTRACT.................................................................II 1前言..................................................................... 1

2 电气主接线设计 ........................................................... 2.1 主接线的设计原则 ...................................................... 2.2 主接线设计的基本要求 .................................................. 2.2.1 主接线可靠性的要求 ................................................ .2.2 主接线灵活性的要求 ................................................ .2.3 主接线经济性的要求 ................................................ 2.3 电气主接线的选择和比较 ................................................ 2.3.1 主接线方案的拟订 ..................................................

2.3.2 主接线各方案的讨论比较 ............................................

个人收集整理 勿做商业用途

2.3.3 主接线方案的初选择 ................................................ 3 主变压器的选择与论证 .....................................................

. 3.1 SJD2—88 规程中有关变电站主变压器选择的规定 ............................ 3.2 主变压器选择的一般原则与步骤 .......................................... 3.2.1 主变压器台数的确定原则 ............................................ 3.2.2 主变压器形式的选择原则 ............................................ 3.2.3 主变压器容量的确定原则 ............................................ 3.3 主变压器的计算与选择 .................................................. 3.3.1 容量计算 ..........................................................

3.3.2 变压器型号的选择 .................................................. ..................................... . 4 短路电流的计算 ...................................................................... 4.1 网络的等值变换与简化 ................................................ 4.2 各短路点的短路电流的计算 ............................................. 5 重要的电气设备选择 ................................................................. 5.1 断路器的选择 ......................................................... 5.1.1 断路器选择原则与技术条件 ........................................ . 5.1.2 断路器型号的选择及校验 ........................................... 5.2 隔离开关的选择 .......................................................

5.2.1 隔离开关的选择原则及技术条件 ..................................... 5.2.2 隔离开关型号的选择及校验 .........................................

6 方案 C 与方案 E 的技术经济比较 ..................................................... 6.1 方案的总投资比较 ..................................................... 6.2方案的综合投资比较 ................................................... 6.3方案的年运行费比较 ................................................... 6.4 最终方案的确定 .......................................................

7 其它电气设备的选择 ................................................................. 7.1 电流互感器的选择 ..................................................... 7.2 电压互感器的选择 ..................................................... 7.3 导线的选择 ........................................................... 7.3.1 35KV 侧母线的选择 ................................................. 7.3.2 35KV 侧出线的选择 ................................................. 7.3.3 10KV 侧母线的选择 ................................................. 7.3.4 10KV 侧出线的选择 ................................................. 7.4 避雷器的选择 .........................................................

7.4.1 110kV 母线接避雷器的选择及校验 .................................... 7.4.2 35KV 母线接避雷器的选择及校验 ..................................... 7.4.3 10KV 母线接避雷器的选择及校验 ..................................... 7.5 站用变压器的选择 ..................................................... 7.6 支柱绝缘子、穿墙套管选择 ............................................. 7.6.1 支柱绝缘子的选择 .................................................. 7.6.2 穿墙套管的选择 ....................................................

8 配电装置的选择 ...................................................................... 8.1 配电装置的选择要求与分类 ............................................. 8.2 配电装置设计选择 .....................................................