tb 288-2006 guide for space charge measurements in dielectrics and insulating materials

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1、288SPACECHARGEMEASUREMENTINDIELECTRICSANDINSULATINGMATERIALSTaskForceD1.12.01February2006SPACECHARGEMEASUREMENTINDIELECTRICSANDINSULATINGMATERIALSTaskForceD1.12.01T.Takada,J.Holboell,A.Toureille,J.Densley,N.Hampton,J.Caste

2、llon,R.Hegerberg,M.Henriksen,G.C.Montanari,M.Nagao,P.MorshuisCopyright©2006“OwnershipofaCIGREpublication,whetherinpaperformoronelectronicsupportonlyinfersrightofuseforpersonalpurposes.Areprohibited,exceptifexplicitlyagreedbyCIGRE,totalorpartialreproductionofthepublicationforuseotherthanper

3、sonalandtransfertoathirdparty;hencecirculationonanyintranetorothercompanynetworkisforbidden”.Disclaimernotice“CIGREgivesnowarrantyorassuranceaboutthecontentsofthispublication,nordoesitacceptanyresponsibility,astotheaccuracyorexhaustivenessoftheinformation.Allimpliedwarrantiesandconditionsa

4、reexcludedtothemaximumextentpermittedbylaw”.1SpaceChargeMeasurementinDielectricsandInsulatingMaterialsAbstract1.Introduction2.PEAandPWPSpaceChargeMeasurementEquipmentandResults2.1PulsedElectroAcoustic(PEA)method2.2PressureWavePropagation(PWP)method2.3Spacecharge,ElectricFieldandPotentialDi

5、stributionResults3.StandardMeasurementConditionsforPressureMethods3.1SampleThicknessandPulseDuration(1)DefinitionofRelativeSpaceResolution(2)SampleThicknessandPulseDurationforPEAMethod(3)SampleThicknessandPulseDurationforPWPMethod3.2HighVoltageCircuit(1)SelectionofCouplingCapacitance(2)Sel

6、ectionofSeriesResistance3.3AcousticSignalandTransducerforPEAMethod(1)DetectionofAcousticSignal(2)TransducerThickness(3)AcousticImpedanceMatching3.4AcousticPulseGenerationforPIPWPMethod(1)AcousticPulseGenerationusingTransducer(2)AcousticPulseGeneration(a)ShortDurationVoltageAppliedtoaThickT

7、ransducer(b)LongDurationVoltageAppliedtoaThinTransducer(c)ShortDurationVoltageAppliedtoaThinTransducer3.5AcousticPulseGenerationforLIPPmethod(1)EvaporatedElectrodes(2)MetallicElectrodes(3)SemiconductingElectrodes3.6NanosecondHVPulseGenerator(1)FletcherTypePuls