110kv变电站继电保护整定与配置_学位论文.doc

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1、西华大学毕业设计说明书110kV环形网络继电保护配置与整定（二）摘要：继电保护是保证电力系统安全稳定运行的重要组成部分，而整定值是保证保护装置正确动作的关键。本文结合给定110kV电网的接线及参数，对网络进行继电保护设计，首先选择电流保护，对电网进行短路电流计算，确定电网的最大、最小运行方式，整定电流保护的整定值。在电流保护不满足的情况下，相间故障选择距离保护，接地故障选择零序电流保护，同时对距离保护、零序电流保护进行整定计算。本设计最终配置的保护有：电流速断保护、瓦斯保护、纵差动保护等。关键词：继电保护，短路电流，整定计算Abstr

2、act:Relayprotectionisimportantparttoguaranteethesafeandstableoperationofthepowersystem,andsettingvalueisthekeytoensuretheprotectioncorrectaction.Inthispaper,withgiventhewiringandtheparametersof110kVpowergridtodesign110KVnetworkprotectionofrelay,first,selectthecurrentpro

3、tection,calculateshortcircuitcurrentonthegrid,determinetheMaximumandminimumoperatingmodeofthegrid,setthesettingvalueofthecurrentprotection.Second,Selectingthedistanceprotectionifthecurrentprotectiondoesnotmeetthecase,thephasefaultchoosethedistanceprotectionandthegroundf

4、aultselectzerosequencecurrentprotection.whilesettingcalculationthedistanceprotectionandzerosequencecurrentprotection,.Thefinalconfigurationoftheprotectionofthisdesigninclude:currentspeedtripprotection,gasprotection,thelongitudinaldifferentialprotectionandsoon.Keywords:p

5、rotectionofrelay,short-circuitcurrent,settingcalculation西华大学毕业设计说明书目录1、前言......................................................................................................................................11.1电力系统继电保护作用.................................................

6、.................................................11.2继电保护的基本原理及保护装置的组成......................................................................21.3电力系统继电保护整定计算的基本任务及步骤..........................................................21.4继电保护整定计算研究与发展状况.............................

7、.................................................31.5本次设计的主要内容......................................................................................................32、继电保护的原理................................................................................................

8、..................42.1线路保护的原理.................................................................................