MAGNETIC FIELD ANALYSIS OF HIGH VOLTAGE POWER LINES

Abstract

The electromagnetic field, as its name suggests, consists of two components, namely electric field, and magnetic field. In this study, the magnetic analysis of a transmission line used in a high voltage power system at different times in both normal and hypothetical conditions was performed separately. The analyzed transmission line has been analyzed considering the alternating current values at 380 kV, 3-phase and 50 Hz frequencies. The conductors used for each phase consist of two conductors with a diameter of 31.8 mm. In addition, there are two earthing cables and a protection line, each 23.45 mm in diameter, at the top of the transmission pole. The section under study covers an area perpendicular to the length of the conductors, taking into account the height of 40 m for each side from the center of the tower (on the X axis) and 50 m from the ground (on the Y axis). In this study, modeling and magnetic field analysis were carried out using ANSYS @ Maxwell simulation tool. The magnetic flux density and magnetic field strength on the model were obtained.