Title :
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
fDate :
6/23/1905 12:00:00 AM
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, VDC, 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;
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
DOI :
10.1109/ICSD.2001.955577
