NUMERICAL DETERMINATION OF ELECTRIC FIELD AROUND A HIGH VOLTAGE ELECTRICAL OVERHEAD LINE

This paper proposes a mathematical model of electric field caused by high voltage conductors of electric power transmission systems using the finite elements method. The numerical computation of electric field around of a high voltage 110 kV electrical overhead line is analyzed. The six conductors of a 110 kV transposed high voltage transmission line with double circuit are considered. The spectrum of electric field intensity close to the overhead electric power line and the studied body are analyzed using the ANSYS Multiphysics software package. The results obtained by simulation confirm that the electrostatic field computation for the conductor system and a human body lead to an accurate result. The used method can be useful in the design of the transmission power lines for estimating the insulation distance.