Publication: Partial discharge identification in high voltage cable jointer under DC voltage stress
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Date
2024-07
Authors
Muhammad Syamim bin Ahmad Basir
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Abstract
This research investigates partial discharge phenomena in high voltage cable jointers under direct current voltage stress, focusing on issues related to insulation
failure and the reliability of electrical systems. It highlights the increasing occurrence of electrical trees and their negative impact on insulation materials, emphasizing the need to understand partial discharge mechanisms better. The study aims to create a reliable method for detecting and analysing partial discharge events to improve the reliability of high voltage cable systems. The approach includes systematic experimental setups designed to measure partial discharge under controlled conditions, using a direct current-high voltage direct current converter, a voltage regulator, and an impedance matching circuit for direct partial discharge measurement. The results provide important insights into the frequency spectra of partial discharge events, especially those caused by electrical trees in silicone rubber insulation. These findings stress the importance of early detection and characterization of partial discharge, which can lead to better maintenance strategies for high voltage systems. The research confirms the effectiveness of the proposed method and suggests directions for future studies in electrical insulation and partial discharge detection, ultimately contributing to the field of high voltage engineering and enhancing safety and reliability in electrical infrastructure.