Title :
Numerical evaluation of the efficacy of booster sheds and RTV coating in improving the performance of HVDC wall bushings
Author :
Tang, L. ; Raghuveer, M.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
In this paper, the critical flashover voltages of a 600 kV HVDC wall bushing with booster sheds and RTV coating are estimated by using a model recently developed by the authors. The improved performance of HVDC wall bushings is numerically verified, and agrees well with the results of large scale experiments and operational experience. The numerical evaluation and results obtained are very helpful in assessing the performance of HVDC wall bushings under different severe conditions and promoting the use of remedial measures
Keywords :
HVDC power transmission; bushings; electric fields; flashover; insulating coatings; insulator testing; numerical analysis; 600 kV; HVDC wall bushings; RTV coating; booster sheds; critical flashover voltages; electric field distribution; large scale experiments; numerical evaluation; operational experience; remedial measures; resistive glaze coatings; severe conditions; simulation; Coatings; Conducting materials; Conductive films; Conductivity; Flashover; HVDC transmission; Insulators; Petroleum; Porcelain; Surface treatment;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1997. IEEE 1997 Annual Report., Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-7803-3851-0
DOI :
10.1109/CEIDP.1997.641098
