Examining the Use of Acoustic Emission Technique for Evaluating Partial Discharge in Power Cables: A Review

Partial discharges in power cables are an inherent phenomenon during their operation, often leading to failures and significant financial losses. Various prediction methods exist, but they often lack sensitivity in detecting partial discharges and fail to pinpoint the location of potential faults. Conversely, the acoustic emission method offers a more effective solution, enabling precise monitoring of partial discharge levels within equipment and accurate localization of faults in power cables. Enhancing the quality of result analysis requires adhering to specific requirements and implementing various procedures to improve diagnostic effectiveness. This paper provides an overview of fault diagnosis utilizing acoustic emission across different evaluation techniques, presenting results obtained from operating various power cables.