《电力系统继电保护及应用》课件-12. Adjust the operation matters need attention

Adjusttheoperation

mattersneedattentionAdjusttheoperationprecautions1.Undernormalcircumstances,theinput,exitandprotectionmodeswitchingoftherelayprotectiondeviceshallbecompletedbytheoperatorondutyusingtheswitchandpressureplate,andthesecondarylineheadandthetemporarylineshallnotberemovedatwill.2.Thedoorsoftheprotectivecabinetshallnotbeopenedorclosedtoohard;anyvibrationworkshallnotbeperformedontheprotectivecabinetandtheautomaticdevicecabinetinoperation.3.Ensurecorrectlyandinplacewhenthrowingandwithdrawingtheprotectivepressureplate.4.Thedifferentialprotectionandheavygasprotectionofthetransformerinoperationshallnotbewithdrawnatthesametime.5.Aftertheregularinspectionoftherelayprotectiondeviceiscompleted,themodificationofthesecondaryprotectioncircuitiscompleted,andbeforethenewprotectiondeviceisputintooperation,etc.,Thegroundpotentialoftheupperandloweropenendsoftheprotectiveplatenshouldbemeasured.Stopcontinueonbothsides.Adjusttheoperationprecautions6.Whenanysideofthepilotprotection(suchashighfrequencyblockingdirectionprotection,highfrequencyblockingdistanceprotection,highfrequencyblockingzerosequenceprotection,etc.)needstostoporstoptheDCpowersupply(e.g.,inordertofind他thepowersystemgroundingpoint),itmustbedispatchedfirst,andrequestbothsidestostop.7.Whendisusingthecompleteprotectiondevice,alltheprotectionplatenontheprotectivecabinetshouldbeoutofoperation,andthendisconnecttheautomaticairswitchoftheprotectivedeviceabovethebackoftheprotectivecabinet,includingtheDCpowerswitchandtheACvoltageswitch.Theoppositeorderisobservedwhenputintotheprotectiondevice.Adjusttheoperationprecautions8.Thedeactivationofacertainprotectionfunctionoftheprotectiondevicereferstosettingthefunctionsoftplatenandoperationmodecontrolwordoftheprotectionfunctionto“0”orexitingthefunctionalhardplatenanditsoutletplatenontheprotectioncabinet.（Whentheprotectionfunctionisprovidedwithitsownoutlethardplatenalone）9.Therelationshipbetweenthe“disablerecloser”softplatenandthehardplatenonthescreenis“or”.When“DisableReclosing”issetto“1”,three-phasetrippingandblockingrecloserforanyfault,usuallysetto"0".The"communicationthree-phasetripping"inputisalwaysvalidregardlessofthe"1"or"0".10.WhentheprotectedDCpowersupplyneedstobedisactivated,suchasfindingthegroundingoftheDCsystem,theprotectedmainoutlettrippressureplateshouldbedisconnectedfirst,andthentheprotectedDCpowersupplyshouldbestopped.Whenrecovering,theprotectedDCpowersupplyshouldbeclosedfirst.Whenthedeviceisnotabnormal,theprotectedtotaloutlethardplatenshallbeinput.11.Thecompletemicrocomputerrelayprotectiondeviceshouldbeoutofoperation:1)TheACvoltage,ACcurrent,switchingamountinputandswitchingamountoutputcircuitusedby