Simulation of electric field distribution in XLPE cable containing alumina nanoparticles

This paper includes a comprehensive investigation into the electric stress behaviour of crosslinked polyethylene (XLPE) cables containing alumina nanoparticles. XLPE is commonly utilised in high-voltage applications because of its excellent dielectric characteristics, mechanical strength, and heat resistance. However, there are two main factors contribute to the critical issues that lead to dielectric breakdown because the XLPE insulation may age over time and high voltage applications create significant electrical stress within the insulator of XLPE cable. Therefore, this research studies electric field distribution in XLPE and XLPE containing alumina nanoparticles. Alumina was chosen in this research due to its high thermal conductivity to efficiently transfer heat and high resistant to corrosion, acids and bases. By adding lhe alumina nanoparticles in XLPE it will enhance the performance of the cable. This research also studies the various shapes of alumina nanoparticles (sphere. rod and triangle) with three different cases (3 layers, 5 layers and layers) of alumina nanoparticles in XLPE cable. The research includes modeling XLPE and XLPE containing alumina nanoparticles with different shapes through three cases, followed by simulation and analysis by using COMSOL. Multiphysics software. The outcome of this research, XLPL containing sphere alumina nanoparticles gives better results with the increment of 58% (2.37 x 107V/m) compared to pure XLPE (1.50 x 107V/m), increment about 8.44% from Case I (2.37 x 107V/m) to Case 2 (2.57 x 107V/m) and decrement about —2.33% from Case 2 (2.57 x 107V/m) to Case 3 (2.51 x 107V/m) to enhance the performance of cable in terms of higher electric field intensity around nanoparticles while reducing the electric field distribution and it will contribute to the higher breakdown strength.