Search results for " PEA method"

showing 3 items of 3 documents

Modelling of Pulsed Electro Acoustic Method for Space Charge Detection on Single and Multilayer Dielectrics

Space charge PEA method Simulation Modelling Dielectric Multilayer HVDC.
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Reliability of PEA Measurement in Presence of an Air Void Defect

2020

This paper deals with the reliability of the Pulsed Electro-Acoustic (PEA) technique in the case of a specimen containing an air layer. The first approach to this study has been proposed by the authors in previously published works. In these papers, the mathematical description, the PEA cell simulation model, and some experimental tests have been reported. In this work, a more accurate description of the acoustic wave behavior within the PEA cell and specimen with and without an air layer is given. Moreover, the comparison between simulation and experimental tests for both cases (specimen with and without air layer) allowed the validation of the previously developed PEA cell simulation mode…

Void (astronomy)Control and OptimizationMaterials sciencePEA method020209 energyair voidEnergy Engineering and Power Technology02 engineering and technologyDielectriclcsh:Technology01 natural sciencesAir layer0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringComposite materialEngineering (miscellaneous)Space charge HVDC air void PEA method multilayer010302 applied physicsHVDCmultilayerlcsh:TRenewable Energy Sustainability and the EnvironmentAcoustic waveSpace chargeSettore ING-IND/31 - Elettrotecnicaspace charge; HVDC; air void; PEA method; multilayerspace chargeAcoustic impedanceSingle layerEnergy (miscellaneous)Energies
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The Industrial Applicability of PEA Space Charge Measurements, for Performance Optimization of HVDC Power Cables

2019

Cable manufacturing industries are constantly trying to improve the electrical performance of power cables. During the years, it was found that one of the most relevant degradation factors influencing the cable lifetime is the presence of space charge in the insulation layer. To detect the accumulated charge, the pulsed electro-acoustic (PEA) method is the most used technique. Despite the wide use of the PEA cell, several issues are still present. In particular, the PEA output signal is strongly disturbed by the acoustic waves reflections within the PEA cell. This causes the distortion of the output signal and therefore the misinterpretation of the charge profiles. This, in turn, may result…

space charge; PEA method; PEA cell model; IEEE Std 1732; space charge in cablespea methodControl and OptimizationMaterials science020209 energyAcousticsEnergy Engineering and Power Technology02 engineering and technologylcsh:Technology01 natural sciencesSignalpea cell modelieee std 1732Distortion0103 physical sciences0202 electrical engineering electronic engineering information engineeringspace charge in cablesElectrical and Electronic EngineeringEngineering (miscellaneous)010302 applied physicslcsh:TRenewable Energy Sustainability and the EnvironmentAttenuationHigh voltageAcoustic waveSpace chargePower (physics)Settore ING-IND/31 - ElettrotecnicaReflection (physics)space chargeEnergy (miscellaneous)Energies
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