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《HighVoltageEquipmentTesting》HighVoltageLiveDetection主讲人:何发武(副教授)
OperatingWorksheet:
TableofContents01Followme02Workshop03Training
01Followme
Ⅰ.OverviewofLiveDetectionStatemonitoringiswidelyusedinthepowersystem,andelectricalequipmenttestingismainlydividedintoonlinemonitoringandlivedetection.Onlinemonitoringreferstothecontinuousanduninterruptedautomaticdetectionoftheelectricalstateoftheliveoperationofelectricalequipmentthroughtestinginstrumentswhiletheequipmentisinoperation.Itcandetectpotentialequipmentfailures,especiallyinthestatusdetectionofintelligentsubstations,whereitplaysanextremelyimportantrole.Livedetectionreferstothemonitoringofequipmentstatuson-sitewithoutapoweroutage.Itisoneoftheeffectivemeasuresforreal-timeanduninterruptedmonitoringanddiscoveringequipmentdefects.High-voltagelivedetectionrealizestheall-aroundmonitoringofhigh-voltageequipmentthroughsensorsanddatatransmissiontechnologies.
Ⅰ.OverviewofLiveDetectionThedifferencebetweenlivedetectionandpoweroutagedetectionliesinwhetherpoweroutagedetectionisusedtoconfirmtheelectricalperformanceoftheequipment.poweroutagedetectionisalsocalledpreventivetestingofpowerequipment.Theobjectsoflivedetectioninclude:transmissionline,transformer,circuitbreaker,disconnectswitch,instrumenttransformer,bushing,lightningarrester,powercapacitor,GIS,reactor,powercable,andothermajorprimaryequipment,asshowninFigure4-13.Itcandetecttheproblemsofprimaryelectricalequipmentintheoperationstate,includingpartialdischarge,overheatingfaults,gasleakagefaults,etc.,toavoidmajoraccidents.
Ⅰ.OverviewofLiveDetectionThesignificanceoflivedetectionistodetectthehiddendefectsthatmayexistinequipmentduringlong-termoperationwhiletheequipmentisrunning,whichcanbetimelyidentified,treatedaccording
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