CAD/CAE modeling of the human exposure to electric field inside a high voltage substation

Abstract

This paper presents the computer aided design (CAD) and computer aided engineering (CAE) modeling of Cluj-Sud 110 kV high voltage substation in order to examine the influence of substation constructive elements and apparatus (e.g. phase conductors, bypass bus bars, breakers and towers) on the spatial electric field distribution. The substation belongs to FDEE Electrica distributie Transilvania Nord SA. In a first step the detailed three dimensional (3D) CAD models of the substation components are constructed and assembled in the CAD environment SolidWorks. Then the exact 3D coordinates of the terminals are automatically retrieved and the electric field distribution is computed on the 3D CAD model using a CAE software developed. The electric field distribution is represented on horizontal and transversal slices at the 3D CAD model in order to highlight the high intensity field zones and compare them with respect to the actual legislation norms of human exposure.