Partial discharge modeling with increasing applied voltages across different void sizes

Power transformer, bushing, insulator, cable and other related parts of electrical equipment are usually used in the power system network. Catastrophic event like explosion may occur in those network components due to some unexpected reasons. This kind of events triggers the power outage, which in turn results in a financial loss. One of the main causes for such terrible incidents is the imperfect condition of the insulation systems, which leads to deterioration and breakdown of high voltage equipment due to partial discharge. In this paper, the effect of an increase in applied voltage across the three-capacitance model, which represents the phenomena of partial discharge within the solid type insulation, is studied using the EMTP-RV software. Different void sizes and types of dielectric materials are also studied in this paper. The results obtained by the simulation software EMTP-RV and MATLAB are summarized.