毕业论文-某10KV变电所的继电保护设计.doc
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Southwest university of science and technology
本科毕业设计(论文)
某10KV变电所的继电保护设计
学院名称 信息工程学院 专业名称 电气工程及其自动化 学生姓名 学号 指导教师
二〇一三年六月
10KV变电所是将10KV配电电压降为380V的终端变电所,主要为企业和工厂等用户直接供电。本设计是主要针对10KV变电所的继电保护所做的设计,可靠的继电保护系统是变电所安全运行和稳定供电不可或缺的部分,主要用于一次系统的监控、测量和保护。继电保护系统由各种电量与非电量的继电保护仪器相互配合而成。通过提供的原始设计资料进行详细的整定计算确定保护方式、类型和继电保护仪器的整定值,并选择合适的继电器使变电所在故障状态下继电保护系统能可靠、快速、有选择性地切除故障元件或是发出故障信号,从而达到保护仪器和确保电力系统稳定性的目的。并在设计中绘制详细的保护接线原理图和系统展开图。
关键词: 继电保护; 整定计算; 设备选型; 图纸绘制;
The elay Protection Design of 10KV Substation
Abstract:10 kv substation is a distribution voltage form 10kv to 380 v terminal substation, mainly for enterprises and factories and other user power supply directly. This design is mainly for the 10 kv substation relay protection design, reliable relay protection system is an integral part of the substation safe operation and stable power supply, mainly used in a system of monitoring, measurement and protection. By all sorts of power relay protection system and non-electricity protection equipment to cooperate with each other. Through the provision of original design data of the detailed way of setting calculation to determine the protection, type, and relay protection setting value of instruments, and select the ppropriate relay can make the substation fault in the state of relay protection system is reliable, fast and selective removal of fault component or a fault signals, so as to protect equipment and ensure the stability of power system. And draw the design details of the protection wiring principle diagram and system expansion plan.
Key words: protective relaying, setting calculation, equipment selection, rendering drawings
目 录
第1章 绪论 1
1.1 设计概述 1
1.2 选题意义与目的 2
1.3 国内外研究现状及生产需求状况 2
第2章 继电保护的设计思路及意义 4
2.1 继电保护的基本原理 4
2.2 继电保护装置的基本要求 5
2.3 继电保护装置常用器件介绍 5
第3章 10KV变电所的一次系统分析及短路电流计算 7
3.1 10KV变电所一次系统的构成和特点 7
3.2 10KV变电
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