蕭氏集團(tuán)中低壓配電網(wǎng)改造中繼電保護(hù)故障分析與優(yōu)化設(shè)計(jì)畢業(yè)設(shè)計(jì)

1、三峽大學(xué)科技學(xué)院畢業(yè)設(shè)計(jì)題目蕭氏集團(tuán)中低壓配電網(wǎng)改造中繼電保護(hù)故障分蕭氏集團(tuán)中低壓配電網(wǎng)改造中繼電保護(hù)故障分析與優(yōu)化設(shè)計(jì)析與優(yōu)化設(shè)計(jì)學(xué)生姓名：學(xué)號(hào)：2010209239專(zhuān)業(yè)：發(fā)電廠及電力系統(tǒng)班級(jí)：20102092指導(dǎo)教師：評(píng)閱教師：完成日期二○一三年五月二十日WhenthearticleISectionIIthesensitivitycoefficientisnotenoughcanusecurrentvoltageinterlocki

2、ngspeedprotection.Thefirstsectionprotectionactiontimeisshtgoodspeedbuttheactioncurrentislargefulllengthcannotprotectcircuitprotectionrangeminimumsecondsectionprotectionhasashtactiontimecanprotectthelinelengthbutnotasabac

3、kupprotectionofadjacentelementsChapterIIIactioncurrentprotectionovertheprevioustwosmallbigprotectionrangefulllengthcanprotectthelinecanbeusedasbackupprotectionadjacentlinesensitivityisbestbuttheactiontimeislongerthespeed

4、difference.ThemainadvantageofusingthesectionISectionIIIIIpartstagecurrentprotectionissimplereliablecanmeettherequirementsoffastfaultclearingingeneral.Thegraduationprojectisthesubjectofanalysisoptimizationdesignofrelaypro

5、tectionfaultoflowvoltagedistributionwkreconstructionofXiaosgroup.Themaintaskistoensurethesafeoperationofpowergridtheneedfrelayprotectiondeviceconfigurationperfect.Accdingtothepowergridstructurethevoltagelevellinelengthop

6、eratingmodeloadpropertiesrequirementstorelayprotectionoflowvoltagedistributionwkXiaoShigroupdesignappropriate.Keywds:lowvoltagewkrelayprotectionsettingcalculationfaultanalysisdesignprinciple目錄目錄內(nèi)容摘要內(nèi)容摘要..................