（完整版）110kV变电站输电线路的继电保护设计毕业设计 - 图文

毕业设计（论文）

题 目： 平湖六店110kV变电站输电线路的继电保护设计

系 （部）： 电气工程系 专业班级： 电力10-2 姓 名： 黄婷 指导教师： 张国琴

2013年 5 月 19 日

摘 要

继电保护可以保证电力系统正常运行，当系统中的电气设备发生短路故障时，能自动，迅速，有选择的将故障元件从系统中切除，以免故障元件继续遭到破坏，保证其他无故障部分正常运行；有能在排除故障的同时，也保证了人们生命财产安全。本次毕业设计以平湖六店110KV变电站的输电线路和电气接线方式作为主要原始数据，本设计围绕110KV变电站的输电线路进行的继电保护设计，根据平湖六店原始资料所提供的变电站一次系统图，重点介绍线路的无时限电流速断保护和定时限过流保护保护的作用原理，保护的范围，动作时限的特性，整定原则等，又相对平湖六店的输电线路进行了短路计算及其速断保护和定时限过电流保护的整定计算，灵敏度校验和动作时间整定，通过计算和比较从而确定了输电线路保护的选型。相辅也介绍了输电线路的其他几种保护，如接地保护，距离保护，纵差保护和高频保护，简单介绍了这几种保护的工作原理组成部件，整定计算，影响因素等方面。通过对输电线路继电保护的设计使得输电线路在电网中能更加安全的运行。

关键词：继电保护；短路计算；整定计算

Abstract

Can ensure the normal operation of power system relay protection, short circuit fault occurs when the electrical equipment in the system, can automatically, rapidly and selectively to fault components removed from the system, so as to avoid fault components continue to damage, ensure the normal operation of other trouble-free part; Can design in pinghu six stores 110 kv substation of power lines and electrical connection mode as the main raw data, the design around the transmission lines of 110 kv substation relay protection design, according to pinghu six stores the original data provided by the substation system diagram at a time, focus on line without time limit current instantaneous fault protection and protection principle of fixed time limit over current protection, the scope of the protection action time limit characteristics, principle, etc., and relative pinghu six shop transmission lines for the calculation of short circuit and quick break protection and fixed time limit over current

protection setting calculation, the sensitivity setting, check and action time through calculation and comparison to determine the selection of power transmission line protection. Hand also introduced several of the transmission line protection, such as grounding protection, distance protection, longitudinal differential protection and , introduced the working principle of several kinds of protection components, setting calculation, the influence factors and so on. Through the design makes the transmission line relay protection of transmission lines in power grid can run more secure. Key words: relay protection; Short circuit calculation; Setting calculation

目录

引言 ....................................................................

第1章 继电保护基础 ......................................................

1.1 继电保护的基本原理和保护装置的组成 ................ 错误！未定义书

1.2 继电保护的基本要求 ................................ 错误！未定义书

第2章 参数设定及阻抗计算 ................................. 错误！未定义书

2.1 参数设定 ......................................... 错误！未定义书

2.2 阻抗归算 ......................................... 错误！未定义书

第3章 线路的继电保护 ..................................... 错误！未定义书

3.1 线路的整定 ........................................ 错误！未定义书