Research of critical electric fields in accessories for power cables

In studies, design or malfunction examination involving power cables accessories, it is important to locate the areas where the electric field can reach critical values and to know its components. The authors explain how an electric field computation software allows this kind of problem to be solved. This highly interactive software is based on a computation method well suited for problem solutions where the geometries are lengthy as is often the case for cable accessories. The computation of a time-harmonic analysis allows the resistivity of materials to be taken into account. Two practical examples show the application of this investigation method and high voltage accessories