Metallic particle trajectory in an isolated conductor Gas Insulated Busduct(GIB) with dielectric coated enclosure using Charge Simulation Method

Abstract

In this paper, Dielectric coated outer enclosure of single phase Gas Insulated Busduct(GIB) is simulated for computing the trajectory of contaminated metal particles. A mathematical model is developed to find the movement pattern of a metallic particle in a Gas Insulated Busduct. All forces acting on the metallic particle depends on GIB geometric parameters, electrostatic charge acquired by the particle, electric field present at the particle location, the drag coefficient and Reynold's number. The second order differential equation of moving metallic particle is solved iteratively using Runge Kutta method. Electric fields at the instantaneous particle locations were computed using the Charge Simulation Method (CSM). The movements of metallic particle with Analytical field calculation are compared with charge simulation field calculation methods and presented in this paper.