Title :
Electrical properties calculation of HVDC bushing
Author :
Chen, X. ; Morshuis, P.H.F. ; Smit, J.J. ; Marquezin, G. ; Girodet, A.
Author_Institution :
High-Voltage Technol. & Manage., Delft Univ. of Technol., Delft, Netherlands
Abstract :
This paper reports electric properties calculation of a composite housed SF6 insulated bushing based on the finite element method. After introducing different stages of electric field distribution under DC voltage, the finite element method and boundary conditions are described. The electric field distribution, time constant of transmission from conductive distribution to resistive distribution are presented, taking a polarity reversal into consideration. The surface charge formation, its influence of electric distribution, and the influence of polarity reversal are discussed as well. The polarity reversal and its effect on the electric properties of the bushing are focused on in this paper.
Keywords :
HVDC power transmission; bushings; electric fields; electric properties; finite element analysis; DC voltage; HVDC bushing; boundary condition; composite housed SF6 insulated bushing; conductive distribution; electric field distribution; electrical property calculation; finite element method; high voltage direct current transmission; polarity reversal; resistive distribution; Conductivity; Electric fields; HVDC transmission; Insulators; Materials; Permittivity; FEM calculation; HVDC bushing; electric field; surface charges;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2010 Annual Report Conference on
Conference_Location :
West Lafayette, IN
Print_ISBN :
978-1-4244-9468-2
DOI :
10.1109/CEIDP.2010.5723959
