本科毕业论文(10KV变电站的继电保护设计).docx

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 黄 艳 青 学 号指 导 教 师 毕 效 辉 教 授 二〇一三年六月 I 西南科技大学本科生毕业论文 某 10KV 变电所的继电保护设计 摘要：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； II 西南科技大学本科生毕业论文 The Relay 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 III 西南科技大学本科生毕业论文 目 录 第1 章 绪论 ··············································································1 1.1 设计概述 ······························································· ········1 1.2 选题意义与目的 ································