Forces affecting metallic particle motion in GIS

The bounce height of a metallic particle in Gas Insulated Switchgear (GIS) is one of the key factors which affect GIS reliability. Simulation of particle motion can evaluate bounce height if the relevant forces acting on the particle are taken into account. This paper presents an approach to simulating particle trajectories including dipolar force and drag force from SF₆ viscosity. The influence of various forces is evaluated through the comparison between the simulation results and particle trajectories determined from high speed camera observation of particle motion.