Effect of Al2O3 Nanofillers on Polarization and Depolarization Current (PDC) of New LLDPE/HDPE Compounding for HVDC Application

• Published in: 2022 IEEE International Conference on Power and Energy (PECon) pp. 230 - 233
• Main Authors: Noor, Syatirah Mohd, Muhamad, Nor Asiah, Abdul Halim, Khairul Anwar, Ghani, Sharin Ab, Darussalam, Brunei, Mohd Jamil, Mohamad Kamarol
• Format: Conference Proceeding
• Language: English
• Published: IEEE 05-12-2022
• Subjects: Conductivity; Current measurement; depolarization current; Dielectric measurement; HV insulations; Insulation; LLDPE nanocomposite; Nanocomposites; Polarization current; Polyethylene; Time measurement
• DOI: 10.1109/PECon54459.2022.9987706

Polymeric nanocomposites are being used more frequently to replace traditional insulation because they offer superior mechanical and electrical qualities. An efficient and successful diagnostic method based on time domain measurement is Polarization and Depolarization Current (PDC) measurement, which tracks the behaviour of the dielectric. Finding novel materials with improved dielectric properties is one of the key goals of research in the field of polymer nanocomposite dielectrics. This study uses the Polarization and Depolarization Current (PDC) measuring technique to examine the conductivity variation of LLDPE nanocomposite for formulations of HDPE blends nanocomposites made from polyethylene filled with nanoparticles of Al 2 O 3 . The goal of the experiment was to determine each sample's individual conductivity fluctuations and PDC pattern. The optimal composition for HV insulation in terms of lowest polarization and depolarization current values and lowest conductivity was discovered to be LLDPE/HDPE- Al 2 O 3 at 5 % wt of nanofiller. The findings indicate that adding a certain amount of nanofiller to LLDPE/HDPE-based materials improved the materials' dielectric strength.