110kV变电站电气一次系统设计_毕业设计说明书.docx

毕 业 设 计(论文) 题 目 110kV变电站电气一次系统设计 系 别 电力工程系 专业班级 电气专业#####班 学生姓名 ###### 指导教师 ###### 二○一三年六月 110kV变电站电气一次系统设计 摘 要 随着我国科学技术的进展，专门是运算机技术的进步，电力系统对变电站的要求也愈来愈高。人们对电能的依托程度的也不断增强，社会生产和生活对电能供给的质量和治理提出了愈来愈高的要求。为了保证供配电要求，供电系统的设计要愈来愈全面、系统，而供电系统的核心部份是变电所，因此设计和建造一个平安、经济的变电所是极为重要的。 本设计讨论的是 110KV 变电站电气部份的设计。本变电站设计除注重变电站设计的大体计算外，关于主接线的选择与论证等都作了充分的说明，其要紧内容包括：变电站主接线方案的选择，进出线的选择；变电站主变压器台数、容量和型式的确信；短路点的确信与短路电流的计算，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；防雷爱惜与接地系统的设计。本次设计论文是以我国现行的各有关标准规程等技术标准为依据，所设计的是一次初步设计，依照任务书提供原始资料，参照有关资料及书籍，对各类方案进行比较而得出。文中介绍的110kV变电站的设计方式、思路及新技术的应用能够作为相关设计的理论指导。 关键字：变电站；短路计算；电气主接线；配电装置 A DESIGN OF ELETRIC SYSTEM FOR 110kV TERMINAL TRANSFORMER SUBSTATION Abstract With the development of science and technology in China, particularly computing technology has advanced, social production and is it put forward high request more and more to quality and management that electric energy supply to live. In order to guarantee the power supply requirements,the design of the power supply system should become more and more completely and systematic. Because the power supply system，s hard core is a transformer substation, designing and constructing a security and economical transformer substation is great importance. The design is refer to the part of 110kV electrical substation de sign. Besides paying attention to basic calculation of design for transformer substation, the design makes 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 fo