Analysis of the power frequency electric field generated by high voltage substations

The paper outlines the results of a study regarding the electromagnetic field generated by a 400 kV high voltage substation belonging to the Romanian national Power Grid Company Transelectrica SA. In the first part of the paper, a semi-analytical computation module dedicated to the electric field computation inside substations is presented. Comparison of the computation results with the experimental measurements performed in the substation is outlined. Scenarios to reduce the field value inside substation in order to fulfil the requirements of the actual legislation regarding the occupational exposure to power frequency electromagnetic fields are proposed. The final conclusions of the study performed end the paper.