Investigation and Review of Partial Discharge Modeling Considerations in H.V. Apparatus

In power systems, high voltage apparatus are protected to ensure reliable operation of power system, to perform this purpose, various solid, liquid and gas materials are used to insulate the equipment. The materials used in insulation are not completely pure and have some impurities. One of these impurities is the presence of air bubbles and voids in solid insulation, which reduces the resistance of insulation. The insulation of the power system equipment is under severe electrical, thermal and mechanical stresses, and due to these stresses, it gets damaged in impurity points. Due to these stresses, the phenomenon of partial discharge occurs, which greatly reduces the quality and resistance of insulating materials. Therefore, analysis and measurement of this phenomenon in power system equipment will be necessary and useful. In this article, we have analyzed the phenomenon of partial discharge in one of the most widely used solid insulators due to the presence of an empty space, and for this purpose, we have used the analysis by presenting a circuit model and simulating it in the Simulink MATLAB environment.

کلیدواژه ها:

Partial discharge ، Insulation ، Power system ، High voltage equipment