Lagrange multipliers for the intermediate metallic regions in the computation of the potential distribution of insulator chains by FEM

Cebeci M., Kurum H., Akpinar S.

ELECTRIC MACHINES AND POWER SYSTEMS, vol.26, no.5, pp.495-505, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 5
  • Publication Date: 1998
  • Doi Number: 10.1080/07313569808955837
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.495-505
  • Karadeniz Technical University Affiliated: No


It is very important to predict the behaviour of the high voltage insulators at the operating conditions from the point of improving of the design and practical selection of the insulator type. Therefore, it is necessary to compute the potential and electric field distributions and to determine the critical regions forced much more by the electric field. In case the insulator surface is clean or the pollution film at the surface is dry, a little capacitive current flows and the solution of the problem results in a capacitive potential distribution.