Modelling of xlpe nanocomposite power cable using comsol multiphysics

Abstract

vi ABSTRACT This report presents modelling of a nano-insulated cross-linked polyethylene (XLPE) cable with the presence of voids using COMSOL Multiphysics software. Void either with the medium of air or water is one of the factor that causes degradation of the power cable insulation. The void that presence in the power cable is occur during cross linking process where the penetration of water steam happened. Using COMSOL Multiphysics software might be the best method in investigating the electric field distribution and potential field distribution of the void in the power cable. Finite element method is one of the latest numerical methods use in analyze the electrical and potential field distribution of the voids in the power cable. COMSOL Multiphysics is one the powerful tools that implement the finite element method by resolving Poisson’s equation. In this report, comparison of both type of the XLPE cable materials such as pure XLPE cable and nano-insulated cable are made in investigating the electrical and potential field distribution of the voids in the cable by analyze and compare the graph pattern generated by two types of the cable insulation material. Simulation results indicate that the electric field distribution is influenced by the type of the void, void position and presence of nanoparticle in the XLPE insulation.