摘 要

电力变压器是电力系统中十分重要的供电元件，为了供电的可靠性和系统正常运行，就必须视其容量的大小、电压的高低和重要程度，设置相应的继电保护装置。本设计结合电力变压器运行中的故障，分析了电力变压器纵联差动保护、瓦斯保护及过电流保护等继电保护装置配置原则和设计方案。 关键词：电力变压器 继电保护装置 保护配置

Abstract

Power transformer is very important in power system,power components in order to power supply reliability and system normal operation,you must see the size of its capacity,voltage and important degree of on any account,set up corresponding relay protection device.This paper according to the operation of power transformer fault and analyzed the power transformer longitudinal differential peotection,gas protection and over-current protection rely protection device configuration principle and design scheme. Keywords: Power transformer Relay protection device Protection configuration

目 录

1 概述 ................................................................... 1 1.1变压器的基本概念 ...................................................... 1 1.2变压器的故障和不正常运行状态 .......................................... 1 1.3变压器的保护配置 ...................................................... 1 2 110/35/10KV电力变压器继电保护设计 ...................................... 3 2.1设计基本资料 .......................................................... 3 2.2本系统故障分析 ........................................................ 3 2.3本设计继电保护装置原理概述 ............................................ 4 3短路电流计算和继电保护设计整定 .......................................... 9 3.1初始数据 .............................................................. 9 3.2设计计算 .............................................................. 9 3.3 保护配置图 .......................................................... 16 总 结 ................................................. 错误！未定义书签。 致 谢 ................................................. 错误！未定义书签。 参考文献 ................................................................ 18