Title :
3-D electric field analysis of high voltage SF6 current transformer using charge simulation method
Author :
Xiaoming, Liu ; Yundong, Cao ; Erzhi, Wang ; Yin Shian ; Yao Xuemei
Author_Institution :
Dept. of Electr. Eng., Shenyang Univ. of Technol., China
Abstract :
The generation of a 3-D grid using FEM is very complex due to the "T" type intersection region of a high voltage (HV) SF6 current transformer (CT). In this paper, the charge simulation method (CSM) based on the uniqueness theorem of static electric field is applied for solving a 3-D open boundary electric field of HV SF6 CT. The coordinate transformation is employed. The equal potential and electric field strength distribution of different profiles are obtained and figured out, taking the effects of shielding covers and porcelain casing on the electric field distribution into consideration
Keywords :
SF6 insulation; current transformers; electric charge; electric fields; gas insulated transformers; power transformer insulation; 3D electric field analysis; 3D open boundary electric field; FEM; SF6; T type intersection region; charge simulation method; coordinate transformation; electric field strength distribution; equal potential; high voltage SF6 current transformer; porcelain casing; shielding covers; static electric field; uniqueness theorem; Analytical models; Computational modeling; Conductors; Current transformers; Dielectrics and electrical insulation; Equations; Finite difference methods; Home appliances; Power transformer insulation; Sulfur hexafluoride;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970664
