1、 本本/专科毕业设计 （论文）专科毕业设计 （论文） 题 目：110KV*变电站继电保护及其自动 装置整定计算 2012 年 5 月 2 110KV110KV*变电站继电保护变电站继电保护 及自动装置整定计算及自动装置整定计算 摘要摘要：本文针对 110KV 中性点接地电网发生短路时的特点， 对 110KV 乌江变电所的主变和各 电压等级出线进行继电保护、 自动装置的配置和继电保护整定计算。 主变的主保护为瓦斯保 护、 纵差动保护， 后备保护包括复合电压启动过电流保护、 零序过电流保护、 过负荷保护等； 110KV 出线的主保护为距离保护，后备保护为零序过电流保护；35KV 和 10KV 所有
2、出线配置 保护为过电流保护段和过电流保护段； 变电所的自动装置包括自动重合闸、 备用电源自 投入、按频率自动减负荷装置等。本变电站继电保护和自动装置的配备严格遵守设计手册， 满足变电站继电保护和自动装置的设计要求，参照系统实际情况，符合继电保护的“四性” 。 在大量参阅文献的基础上完成，在大学所学知识的基础上得以延伸。 关键词关键词：继电保护；自动装置；主保护；后备保护 3 【AbstractAbstract】 In this paper, according to the characteristics of the 110 KV Neutral Ground Network when th
3、e short circuit occurredThe protection relay and automatic device for the main transformer and the lines of all the voltage in 110KV are allocated in Wujiang SubstationThe main protection of the main transformer is gas protection and the longitudinal differential protection，the backup protection of
4、the main transformer is voltage start of the current protection、zero sequence over-current protection、overload protection and so onThe main protection of the lines in 110KV is distance protection，the backup protection of the lines in 110KV is zero sequence over-current protectionThe main protection
5、of the lines in 35KV and 10KV is the section of the current protection，the backup protection of the lines in 35KV and 10KV is the section of the current protection. The automatic device of the substation include the automatic reclosing、the standby power input、by reducing the frequency automatic load
6、 device and so on. The configuration of the protection relay and automatic device in the station strictly obey the design manual，meet the design requirements of the protection relay and automatic device in the stationIn line with the actual situation of the power system and the “four characteristics” Based on many of this kind literature, extend the knowledge in college Key Words:Key Words: Protection relay；Automatic device；Main protection；Backup protecti
