《电力系统继电保护及应用》课件-2. 保护压力板、模式控制字和跳闸控制字

Protectionplaten,modecontrolwordandtripcontrolwordCONTENTSPAGE010203ProtectionplatenProtectionmodecontrolwordProtectiontripcontrolWordProtectionplaten01RelayprotectionplatenTherelayprotectionplatenisthebridgeandlinkbetweentheprotectiondeviceandtheexternalconnection,whichisrelatedtotheprotectionfunctionandwhethertheactionoutput

canplayarolenormally.I.Relayprotectionplaten1.Classificationbyform:hard

platen/soft

platen2.Classificationbyaction:protectionfunctionplaten

/outletplatenThetraditionalprotectionuseshardwaredevicessuchasconnectingpiecestoconnectwiththeexternalcircuit,whichiscalledahardplaten.Whentheconnectingpieceinthemiddleisclosed,thehardplatenisputin;theconnectingpieceisnotclosed,thatis,itexits.1.Classificationbyform:hardplaten

/softplaten1)HardplatenRelayprotectionplatenSoftplaten

isrelativetothehardplate,referstothereturnofafunctionofthesoftwaresystemoftheprotectiondevice,suchasinput,exitofaprotectionandcontrolfunction,canberealizedbymodifyingthesoftwarecontrolwordoftheprotectiondevice.Thesoftplateisaprogramtooperatestheliquidcrystalpaneloftheprotectivedevicetoretireinsidethedevice;notarealobject.Relayprotectionplaten1.Classificationbyform:hardplaten

/softplaten2)Soft

platenRelay,electric,protection,protection,pressure,plate1.Classificationbyform:hardpressureplate/softpressureplate1)HardpressboardDefinitionofdifferentialprotectionofaline:Whenthe"Longitudinalcurrentdifferential"softplaten

puts"1",puttheprotectionfunction,andput"0",exittheprotectionfunction.Whenthe"stopthereclose"softplaten

isplaced"1",therecloseisstoppedand"0",whentherecoilisactivated.The"RemoteModificationValue"softplaten

canonlybechangedinsitu,andonlyiftheplaten

isset"1".Relayprotectionplaten1.Classificationbyform:hardplaten

/softplaten2)Soft

platen1.Classificationbyform:hardplaten

/softplaten2)Soft

platenRelayprotectionplatenRelayprotectionplaten1.Classificationbyform:hardplaten

/softplaten2)Soft

platen1.Classificationbyform:hardplaten/softplaten3)Softandhardplaten

adopts"anddoor"logicalrelationshipThesoftplaten

andfunctionalhardplaten

oftheprotectiondeviceare"with"relationship;suchasdifferentialprotectivefunctioninput,thedifferentialprotectivesoftplaten

mustbeplaced"1"andprotectthedifferentialprotectivefunctionplaten

inthecabinetinthe"input"position.Therearesomeexceptions,suchasthe:(1)Thecontrolword"stopthereclosing"inthereclosinggate,thatis,aslongasthesoftplaten

andthehardplaten

areinput,thereclosingfunctionisinput.(2)Insomelineprotection,"hardplatenisonlysetfordistanceoperation","Remoteswitchingfixedvaluearea","remotecastandwithdrawplaten","remotechangefixedvalue"areonlysetforsoftplaten.Thethreefunctionsareindependentofeachother,andthe"and"door"logicisadoptedwiththe"Protectremoteoperations"hardplaten.RelayprotectionplatenThethreesoftplatensof"remoteswitchingfixedvaluearea","remotecastingandwithdrawingplaten",and"remotemodifyingfixedvalue"canonlybechangedlocally.Aftertheplatenisputin,thedevicepanelcandisplaythecorrespondingplatencyclically.TherelationshipofeachremoteoperationisshowninFig.1.Classificationbyform:hardplaten/softplaten3)Softandhardplaten

adopts"anddoor"logicalrelationshipRelayprotectionplatenAccordingtothedifferentpositionofthesecondarycircuitoftheplatenaccessprotectiondevice,itcanbedividedintoprotectionfunctionplatenandoutletplaten.1)ProtectionfunctionplatenTheprotectionfunctionplatenrealizestheinputandexitsofsomefunctionsoftheprotectiondevice(suchasmainprotection,distanceprotection,zerosequenceprotection,etc.).Theplatenisgenerallyaweakvoltageplaten,connectedtoDC24V.Therearealsodeviceswithstrongelectricfunctionplaten,suchaschargingprotection,overcurrentprotectionandotherconnectiontoDC220V.Beforeenteringthedevice,itisgenerallyisolatedbyphotoelectriccouplingorisolationrelayandconvertedintoweakelectricturn-on,withbetterinterferenceresistance.2.Classificationbyaction:protectionfunctionplaten

/exportplaten1)ProtectivefunctionplatenRelayprotectionplatenThefigureshowsthe220kVlineprotectionfunctionplaten2.Classificationbyaction:protectionfunctionplaten

/exportplaten1)ProtectivefunctionplatenRelayprotectionplatenThediagramshowstheprotectedtripexitandreclosingoutletplaten

of220kVand110kVlinesrespectively2.Classificationbyaction:protectionfunctionplaten

/exportplaten2)ExportplatenRelayprotectionplatenDescriptionofprotectionplaten:1)Ingeneral,thesoftplaten

of"protectionfunction"shouldbecorrespondingonetoone,suchasmainprotection,reserveprotection,etc.,andtheSwitchinputpressureplaten

representingsomeoperationmode,suchastheinterconnectedhardplaten

ofbusprotection,thevoltageoneachsideofthetransformerisputintooperationhardplaten,nosoftplatencorresponding.2)Insomeplaces,thetrippingplaten

adoptsredlogo,theprotectionfunctionpressingplaten

adoptsyellowlogo,andthestandbypressingplaten

isgray,whichmakestheidentificationofthespecificplaten

moreintuitiveandhastheeffectofreducingmisoperation.2.Classificationbyaction:protectionfunctionplaten

/exportplatenRelayprotectionplatenProtecttheplaten

indifferentcolors2.Classificationbyaction:protectionfunctionplaten

/exportplatenRelayprotectionplatenModecontrolword02Mode

controlword010203FunctionofthemodecontrolwordTherelationshipbetween

themodecontrolword

andthehardplatenDefinitionofMode

ControlWords1.FunctionofthemodecontrolwordProtectionmodecontrolwordisthesettingofsomecontrolmethodsofprotection.Thecontrolwordisrealizedbythelogicofprotection,justliketheprotectedhardplate,orcontrolstheinputorexitofsomefunctions,operationmodeandprotectionparametersrespectively.Forexample,thelineprotectiondistanceparagraphIinputorexit,youcanbesetbymodifyingthecontrolword.Mode

controlwordMode

controlword2.TherelationshipbetweenthemodecontrolwordandthehardplatenManyfunctionsoftherealizationarerealizedunderthesameactionofthecontrolwordandthehardplaten,suchasdistanceIsectionprotection,thisfunctionisinvestedinthecontrolword,andthehardboardisalsoinvestedinthefunctiontoberealized.3DefinitionofModeControlWordsThecontrolwordsareusuallyrepresentedbyfourhexadxdigitstransformedfroma16-digitbinary,andeach16-bitbinarynumberwith"1"and"0"representsatrade-offforacertainfunction.Theunifieddefinitionoftheprotectiondevicefunctioncontrolwords"1"and"0"is"1"affirmsthefunctionsexpressed;"0"deniesthefunctionsexpressed;orisotherwisedefinedasrequired;Inordertounifyandadapttothestrictfixedvalueverificationworkintheschedulingoperationmanagement,thefixedvaluelistandthe"functionalexpression"ofthedeviceLCDscreendisplayshouldnotbechanged.Mode

controlwordForexample,thelistofprotectioncontrolwordsofalineissetoutinthefollowingtable,the4-bithexadxcontrolwordissetto00E7,whichrepresentstheprotectionfunctionoftheinputD0,D1,D2,D2,D5,D6,D7,thatis,theinputcurrentsectionIexit,currentsectionexit,currentsectionoutlet,currentIsectiondirection,currentsectiondirection,currentsectiondirectionfunction.Mode

controlwordTripControlWord03TripcontrolwordThemain