Title :
Electric field calculations in polymers in the presence of water trees
Author :
Notingher, P.V. ; Radu, I. ; Filippini, J.C.
Author_Institution :
Polytech. Univ. of Bucharest, Romania
Abstract :
In this communication we present our calculation procedure based on the finite element method and the first results of the calculation of the electric field. The calculations performed in the needle-plane geometry, confirm that the maximum of amplification of the field is reached at the front of the water tree. However, the amplification coefficient is found lower than the value predicted by the model of concentric inhomogeneous dielectric spheres and its dependence on water tree length is different
Keywords :
electric fields; finite element analysis; organic insulating materials; polymers; trees (electrical); amplification coefficient; electric field calculations; finite element method; needle-plane geometry; polymers; water tree length; water trees; Cable insulation; Dielectrics and electrical insulation; Electrodes; Laboratories; Needles; Permittivity; Polyethylene; Polymers; Power cables; Trees - insulation;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1995. ICSD'95., Proceedings of the 1995 IEEE 5th International Conference on
Conference_Location :
Leicester
Print_ISBN :
0-7803-2040-9
DOI :
10.1109/ICSD.1995.523070
