A new approach to the modelling of the conduction processes in a water tree degraded LDPE

A new approach to the modelling of the conduction processes in a water tree degraded LDPE

A new conduction model that takes into account dipole interactions is presented from a modification of the two-wells Debye model. The proposed model provides easy analytical expressions for the dependencies of the experimental Curie-von-Schweidler parameters on both microscopic and macroscopic varia...

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Hauptverfasser: Frutos, F., Acedo, M., Radu, I., Jimenez, A., Perez-Gomez, J.A., Filippini, J.C., Jadraque, A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Current measurement
Degradation
Dielectric materials
Mathematical model
Permittivity
Polarization
Polyethylene
Potential energy
Trees - insulation
Voltage
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Beschreibung
Zusammenfassung:A new conduction model that takes into account dipole interactions is presented from a modification of the two-wells Debye model. The proposed model provides easy analytical expressions for the dependencies of the experimental Curie-von-Schweidler parameters on both microscopic and macroscopic variables of the LDPE plane-plane samples under test. From the evolution of these variables with water tree degradation width, g, and polarization voltage, V/sub DC/, we could simulate polarization currents that had a good deal of accord for measurements in accelerated-aged LDPE specimens.
DOI:10.1109/ICSD.2001.955577