A NEW EXPERIMENTAL STUDY OF MAGNETIC FIELD CONFIGURATION IN THE VICINITY OF THE MEDIUMVOLTAGE ELECTRIC LINES

Abstract

The limit of the magnetic field produced by the distribution power lines is calculated and measured in an urban area, and consideration of risk perception on the environment, recommends several analysis of this field. In this paper, the level of magnetic field is presented for three configurations of the medium-voltage electric lines (30 kV). The proposed computational method is based on the symmetrical configuration of these lines, applied to the three current-carrying conductor’s vectors. This approach leads to a simple formula involving the distance Ri from the conductor to the point of interest P in space. This theoretical and experimental study takes on consideration the real situations and was done at a 50 m as maximum distance from the tower at the height of 1m , 5m and 9m respectively from the ground. The measured and simulated results of magnetic field were assessed to verify the recommended limits and the possible hazard from exposure of the magnetic field configurations on the environment.

Keywords

• Magnetic field
• Electric field
• Electric power distribution
• High-and medium-voltage power lines
• Biot-Savart law