期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2014
卷号：6
期号：4
DOI：10.15676/ijeei.2014.6.4.5
出版社：School of Electrical Engineering and Informatics
摘要：The presence of metallic contaminating particles lowered the dielectricstrength of the gas sharply. The determination of the insulation breakdown inside gasinsulated bus duct requires the knowledge of the field distribution inside it. FiniteElement Method (FEM) has been used throughout this work, for its favorable accuracy,to calculate the electric field distribution inside the bus duct. In this paper, theelectrostatic modeling of gas insulated bus duct (GIBD) with particle contamination isstudied. The effect of particle length, hemi-spherical radius and ratio (L/r) on theelectric field values is presented. The effect of the dielectric coating of the inner surfaceof enclosure, is presented and discussed. Multi-contaminating fixed particles areconsidered in this work and the electric field distribution in this case is presented. Theeffect of particle length and radius of middle fixed particle of multi contaminatingparticles on the electric field values are also studied. Electric field distribution arounddisc-spacer with and without an earthed particle contamination is presented anddiscussed. Finally, the effect of distance between particle and spacer on the electric fieldvalues is also studied.
关键词：FEM; Electric Field; Multi-Contaminating; Disc Spacer
