عنوان المقالة:Prediction of the Physical Parameters Change Inside a Spherical Cavity Located in a Material XLPE of a Medium Voltage Cable by Non-Stationary Modeling
The studies on the reliability of the synthetic insulation of a cable for conveying electric power, lean on the behavior and the ageing of dielectric insulators during their service. Several methods have been proposed to study the non-stationary evolution of the physical parameters (temperature, electric field, the pressure and the energy storage) in a heterogeneous insulating material (containing a cavity) of an electric power conveying cable (medium voltage). Our study fits into in this series of works and aims at applying the finite difference method, as a tool of simulation. The purpose was to understand the phenomena taking place within the insulation and to predict the temporal change to the physical parametres, by taking into account the dimensions of the cavity. Results being considered very satisfactory have been obtained
مختاري البشير | MOKHTARI BACHIR | 4288