Repositorio de producción científica de la Universidad de Sevilla

The Effect of Water Treeing on the Electric Field Distribution of XLPE Consequences for the Dielectric Strength

Opened Access The Effect of Water Treeing on the Electric Field Distribution of XLPE Consequences for the Dielectric Strength

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Radu, I.
Acedo García, Miguel
Filippini, Jean César
Notingher, P.
Frutos Rayego, Fabián
Departamento: Universidad de Sevilla. Departamento de Física Aplicada I
Fecha: 2000
Publicado en: IEEE Transactions on Dielectrics and Electrical Insulation 7 (6), 860-868
Tipo de documento: Artículo
Resumen: This paper describes the influence of water trees on dielectric properties of flat samples cut from a HV crosslinked polyethylene (XLPE) cable insulation. In order to obtain experimental results in a short period of time, we used accelerated aging conditions of voltage and frequency as well as differeat techniques for producing a multitude of artificial water tree inception points. The average value of the water tree permittivity and a law for the time-dependence of permittivity inside the treed degraded areas were deduced from measurements of capacitance and water tree lengths. On the basis of the experimental knowledge of permittivity and water tree length, we determined with analytical/numerical methods, the distribution of the electric field for different shapes of treed regions, Because of the increase in length and permittivity of the water tree, the electric field in front of the degraded area is amplified, which is an important factor of risk leading to the electric ...
[Ver más]
Tamaño: 808.7Kb
Formato: PDF

URI: http://hdl.handle.net/11441/34180

DOI: http://dx.doi.org/10.1109/94.892001

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones