Title :
Charge accumulation in DC cables: a macroscopic approach
Author :
McAllister, I.W. ; Crichton, G.C. ; Pedersen, A.
Author_Institution :
Dept. of Electr. Power Eng., Tech. Univ. Denmark, Lyngby, Denmark
Abstract :
The accumulation of space charge in solid dielectrics is examined from the macroscopic point of view using electromagnetic field theory. For practical dielectrics, it is shown that the occurrence of such charges is an inherent consequence of a non-uniform conductivity. The influence of both temperature and electric field strength upon this space charge formation is elucidated. Thereafter the theory is applied to DC cables
Keywords :
electromagnetic field theory; power cable insulation; space charge; DC cables; electric field strength; electromagnetic field theory; macroscopic theory; nonuniform conductivity; solid dielectrics; space charge accumulation; temperature effect; Cables; Conductivity; Dielectrics; Differential equations; Electromagnetic field theory; Laplace equations; Solids; Space charge; Space technology; Temperature;
Conference_Titel :
Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1942-7
DOI :
10.1109/ELINSL.1994.401528
