1、ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextsty
2、les,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,Clic
3、ktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyle
4、s,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,Clic
5、ktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,ClicktoeditMastertitlestyle,ClicktoeditMastertextstyles,Secondlevel,Thirdlevel,Fourthlevel,Fifthlevel,*,*,IEEEC37.234GuideforProtectiveRelayApplicationtoPowerSys
6、temBuses,B.Kasztenny(Chairman),S.Conrad(Vice-Chairman),P.Beaumont,K.Behrendt,O.Bolado,J.Boyle,G.Brunello,J.Burger,F.Calero,S.Chano,G.Dalke,A.Darlington,H.DoCarmo,D.Fontana,Z.Gajic,J.Holbach,L.Kojovic,F.Lopez,D.Lukach,D.McGinn,J.Miller,P.Mysore,J.OBrien,B.Pickett,S.Sambasivan,G.Sessler,V.Skendzic,J.
7、Smith,D.Tholomier,M.Thompson,J.Uchiyama,D.Ware,D.Weers,R.Whittaker,R.Young,S.Zocholl,PresentationtotheMainCommitteeofPSRC,January14,2010,Orlando,FL,TableofContents,Definitions,Busconfigurations,Introductiontobusprotection,Relayinputsources,Busprotectionmethods,Applicationofbuspro
8、tectionschemes,Annexes,Definitions,23newtermsdefined,Busprotectionandprimaryequipment,breakersubstitution,Temporaryusageofabustiebreakerinamultiplebusconfigurationtosubstituteforoneofthenetworkelementscircuitbreakers,typicallyforthemaintenanceofthelatter;alsoknow
9、nas,breakertransfer,checkzone,Nonselectivepartofamulti-zonebusprotectionsystemmeasuringcurrentflowsaroundtheentirestationandsupervisingselectivetrippingfromindividualbuszonesofprotection,stubbus,Areaofabusorlinethatbecomesisolatedfromtheoriginalzoneofprotect
10、ionoranareathatlosesprotectionduetothelossofsensingtozoneprotectionrelays,Busdesignconsiderations,Continuityofserviceforthebusandessentialnetworkelements,Equipmentmaintainabilityandnetworkswitchingflexibility,Economicalandfootprintconstraints,Sectionalizingrequire
11、mentstoavoidexceedingbreakerfaultduties,Easeoffuturebusexpansion,Busarrangements,Singlebus,Mainandtransferbus,Double-busdouble-breaker,Double-bussingle-breaker,Breaker-and-a-half,Ringbus,Mainandtransferbus,Mainandtransferbus,Introductiontobusprotection,Zonesofprotection,
12、Busprotectionmethods,Schemeselectionguidelines,Zonesofprotection,Dynamiczonesofprotection,Dynamiczonesofprotection,Dynamiczonesofprotection,Zonesofprotection,Busprotectionmethods,Differential,Differentially-connectedovercurrent,Instantaneous,Time-delayed,Percentage-restraineddifferent
13、ial,Restrained,Advancedmicroprocessorbased,High-impedancedifferential,Resistor-stabilizedovercurrent,High-impedance,Partialdifferentialovercurrent,Faultbus,Busprotectionmethods,Zone-interlockedschemes,Simpleblocking,Directionalblocking,Time-coordinatedrelaysoverlappingthebus,Protection(sensors)b
14、uiltintothegasisolatedswitchgear*,*,NotcoveredintheGuide,Schemeselectioncriteria,Busarrangementandflexibility,Fixedvs.switchablebuses,AvailabilityandcharacteristicsofCTs,Forreconfigurablebuses,availabilityofauxiliarycontactsofdisconnectswitches,Performancerequirements,Security,Selectivity,Speed,
15、Sensitivity,Costandcomplexity,Schemeselection,Relayinputsources,Currenttransformers,Types,Accuracyclasses,Equivalentcircuit&timetosaturation,NouniversalCTrequirements,VoltageTransformers,Voltagetripsupervision,Directionalblockingschemes,Positionofswitchesandbreakers,Detailedschemereview,Secti
16、on7givesin-depthreviewofeachmethodfollowingaconsistentpattern,Theoryofoperation,Settingconsiderations,CTrequirements,Applicationconsiderations,ExampleHigh-impedancescheme,Voltagesetting:,AbovethemaximumvoltageforanexternalfaultassumingthatoneCTsaturatescompletely,HighenoughsothatpickupcurrentisabovetheshortcircuitcurrentonthesecondaryofanyPTorstationservicetransformerinsidethebuszone,BelowtheaccuracyclassvoltageratingofthelowestaccuracyclassCTinthedifferentialcircuit,Loweno