High Voltage Engineering and Applications

High-voltage engineering is a crucial part of our modern society, from the different components in the power grid to the copy machines around us. Recently, different challenges have emerged in high-voltage engineering that need special attention from researchers. In this Special Issue, we received 35 articles where 18 were accepted and 17 were rejected. The accepted articles discussed different topics and issues related to high-voltage engineering.
In this Special Issue, we received 35 articles where 18 were accepted and 17 were rejected. The accepted articles discussed different topics and issues related to high-voltage engineering. The first article by Haytham addresses the application of machine learning to transformer health index estimation. The authors used different machine learning algorithms to assess the transformer insulation condition using different transformer oil tests. Subsequently, five articles addressed different issues related to partial discharge (PD). Issues like PD denoising, novel techniques to detect PD under AC, and fast transient and modeling of PD propagation are some of the topics related to PD that were discussed. Then, four articles discussed different topics related to outdoor insulators. Field problems in both ceramic and non-ceramic insulators were highlighted, like pollution flashover and aging under field conditions. The presented work is mixed between experimental and simulation studies. Basic studies follow in four different articles that discuss fundamental issues like surface discharge and interfacial polarization. The focus in these articles was on the use of state-of-the-art modeling techniques like finite element method and space charge simulation. Two articles related to underground cables were to follow. The first articles discusses the influence of voids on electric field distribution in underground cables, and the second article addresses several issues related to cable ampacity. Finally, two articles related to different grounding issues are presented. The topical diversity of the articles is apparent, as is the geographical distribution of the authors; we present articles from China, Canada, Malaysia, the Czech Republic, Slovakia, Iran, France, the UK, the USA, India, and the United Arab Emirates.