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Electric Field Effect on Metallic Particle in Single Phase Dielectric Coated Gas Insulated Busduct Using Finite Element Method

Present paper analyses the effect of electric field on the movement of metallic particles inside a single phase dielectric coated Gas Insulated Busduct(GIB). A reasonable second order differential equation has been derived for a metallic particle motion for ascertaining its trajectory. The particle motion depends on electric field and this field at the instantaneous particle locations can be computed by using analytical or analog or numerical methods. In this paper Finite Element Method(FEM) has been used for calculating the electric field, RK 4 th order method is used for solving particle motion equation and thereby movements of metallic particle are computed. These particle movements are compared with the particle movements obtained by using analytically calculated electric fields. From the results it is observed that the particle maximum movements with FEM calculated electric fields are slightly more than the maximum movements obtained with analytically computed electric fields. The simulation is carried out for various bus configurations with different aluminum and copper particles. The results have been analyzed and presented in this paper.