Optimizing Corona Electrode Geometry: A Comparative Electric Field Analysis
The present paper reports simulation-based investigations of electric field distributions in different geometrical configurations of the corona electrode. Previously, various corona electrode arrangements have been used in the literature for uniform corona aging of insulating samples. However, to date, no conclusive comparative study has been performed to choose the best corona electrode design that would result in a uniform electric field distribution. So, in the present study, simulation investigations have been carried out using Finite Element Methods (FEM) to explore the impact of corona discharges that affect the electric field distribution at various gap spacings between the HV and GND electrodes. An understanding of the effect of such conditions that leads to the intensification of the electric field is needed to better design the corona electrode for experimental purposes. The effect of the electric field distribution in the vicinity of the corona-treated insulating surface is developed. This study provides information on the selection of the best-suited electrode design to achieve a homogeneous electric field.