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

Author

Frutos, F. ; Acedo, M. ; Radu, I. ; Jiménez, A. ; Pérez-Gómez, J.A. ; Filippini, J.C. ; Jadraque, A.

Author_Institution

Departamento de Fisica Aplicada 1, Univ. de Sevilla, Avda, Sevilla, Spain

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

167

Lastpage

170

Abstract

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_DC, we could simulate polarization currents that had a good deal of accord for measurements in accelerated-aged LDPE specimens

Keywords

ageing; dielectric polarisation; dielectric relaxation; polyethylene insulation; trees (electrical); Curie-von-Schweidler parameters; accelerated-aged specimens; conduction model; conduction processes; dipole interactions; macroscopic variables; microscopic variables; plane-plane samples; polarization currents; polarization voltage; two-wells Debye model; water tree degraded LDPE; Current measurement; Degradation; Dielectric materials; Mathematical model; Permittivity; Polarization; Polyethylene; Potential energy; Trees - insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics, 2001. ICSD '01. Proceedings of the 2001 IEEE 7th International Conference on

Conference_Location

Eindhoven

Print_ISBN

0-7803-6352-3

Type

conf

DOI

10.1109/ICSD.2001.955577

Filename

955577