Title :
Numerical evaluation of the electric field in cable terminations equipped with nonlinear grading materials
Author :
Lupò, G. ; Petrarca, C. ; Egiziano, L. ; Tucci, V. ; Vitelli, M.
Author_Institution :
Dipt. di Ing Elettrica, Naples Univ., Italy
Abstract :
The numerical evaluation of the electric field in a cable termination equipped with stress grading materials, is carried out by adopting a model based on the electro quasi-static approximation of Maxwell equations. In such a model, the different nonlinear electrical properties of the stress grading materials, obtained from experimental investigations, are taken into account. The influence on the electric field distribution of the different characteristics (resistivity vs. applied field) is investigated, in order to draw useful information on proper field control
Keywords :
Maxwell equations; cable shielding; electric connectors; electric fields; Maxwell equations; cable terminations; electric field; electro quasi-static approximation; field control; field distribution; nonlinear grading materials; stress grading materials; Cable insulation; Conducting materials; Conductivity; Laplace equations; Maxwell equations; Permittivity; Power cable insulation; Power cables; Stress control; Thermal stresses;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5035-9
DOI :
10.1109/CEIDP.1998.732965
