Partial Discharge within a Spherical Cavity in Solid Dielectric Material

1 M.Tech Scholar, EE Department, DCRUST Murthal, Haryana, India 2Assistant Professor, EE Department, DCRUST Murthal, Haryana, India 3Assistant Professor, ECE Department, IITB Sonepat, Haryana, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Abstract For high-voltages variety of materials are used for insulation purpose. Measurement of partial discharge is an efficient tool for the performance assessment of electrical insulation. In this, simulation of PD activity for spherical cavity in homogeneous dielectric material has been developed. The model is used to study the influence of material temperature and cavity size on PD activity. The model uses a finite element analysis (FEA) method with comsol. It is found that certain parameters in this model are cavity size and temperature dependent. Thus, critical parameters influencing partial discharge behaviour for different cavity sizes within the material and material temperatures can be identified. The obtained result may improve an understanding on PD behaviour.