110kV降压变电站电气一次系统初步设计a

1、毕毕 业业 设设 计计(论文论文) 题 目 110kV 地区变电所电气一次 初步设计 系 别电力工程系 专业班级电气自动化专业 07k6 班 学生姓名 艾亮 指导教师 胡永强 二二一一年六月一一年六月 华北电力大学科技学院本科毕业设计(论文) I 变电所电气一次系统设计 摘要： 电力工业是国民经济发展的基础工业，也是现代城市发展的主要能源和动力。随着 经济的发展和现代工业建设的迅速崛起，供电系统的设计越来越全面、系统，工厂用电 量迅速增长，对电能质量、技术经济状况、供电的可靠性指标也日益提高，因此对供电 设计也有了更高、更完善的要求。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。 变电站是电力系统的一个重要组成部分，由电器设备及配电网络按一定的接线方式 所构成，他从电力系统取得电能，通过其变换、分配、输送与保护等功能，然后将电能 安全、可靠、经济的输送到每一个用电设备的转换场所。本次设计的主题是 110kV 降压 变电所电气一次系统设计，除了注重变电所设计的基本计算外，对于电气主接线的选择 和论证等都做了充分的说明。 本变电所的初步设计包括了:变电所主

2、接线方案的选择；变电所主变压器台数、容量 和型式的确定；短路点的确定和短路电流的计算；电气设备的选择；配电装置设计和总 平面布置；防雷保护和接地系统的设计。另外绘制了几张图纸，包括：电气主接线图， 电气总平面布置图，断面图，防雷与接地图。图纸规格与布图规范都按照电力系统相关 的图纸要求来进行绘制。 关键词：变电站；短路计算；设备选择；电气主接线；总平面布置。 华北电力大学科技学院本科毕业设计(论文) II A DESIGN OF ELETRIC SYSTEM FOR SUBSTATION ABSTRACT: Electric power industry is the foundation of industrial development of the national economy, also the development energy and the power of the modern urban. Along with the economic development and the modern industry developments of quick risin

3、g, the design of the power supply system become more and more completely and system. Because the quickly increase electricity of factories, it also increases seriously to the dependable index of the economic condition, power supply in quantity. The power supply system，s hard core is a transformer substation. Therefore designs and constructs a security and economical transformer substation is great importance. The substation is an importance part of the electric power system, it is consisted of t

4、he electric appliances equipments and the Transmission and the Distribution. It obtains the electric power from the electric power system, through its function of transformation and assign, transport and safety. This design，s subject is a design of electric system for 110kV step-down transformer substation. Besides paying great attention on the basic computation of the transformer substation design and so on has given the full explanation on regarding the main wirings choice and the proof. This

5、first step of design included: Transformer substation main wiring plan choice; Transformer substation main transformer number, capacity and pattern determination; Short dot determination and short-circuit computation; Electrical equipments choice; Power distribution equipment design and total plane layout; Anyi-radar protection and earth systems design. Moreover, has drawn up some blueprints, including: Electrical main wiring diagram, electrical total floor-plan, 110kV wiring sectional drawing. The blueprint specification and the butut all standard deferred to the electrical power system related blueprint request to carry on the plan. Keywords: Transformer substation; Short circuit computation; Unit select; Electrical main wiring; Total plane layout. 华北电力大学科技学院本科毕业设计(论文) 目 录 前言.1 原始数据.2 1 电气主接线选择.3 1.1 概述.3 1.1.1 可靠性.3 1.1.2 灵活性.3 1.1.3 经济性.3 1.2 主接线的接线方式选择.4 1.2.1 单母线接线.4 1.2.2 单母分段接线.4 1.2.3 桥形接线.4 1.2.4 双母接线.4 1.2.5 双母线分段接线.5 2 主变压器容量、台数及型式的选择.6 2.1 概述.6 2.2 主变压器台数的选择.

《110kV降压变电站电气一次系统初步设计a》由会员寂****分享，可在线阅读，更多相关《110kV降压变电站电气一次系统初步设计a》请在金锄头文库上搜索。