Research on Electric Field of High-Voltage Transmission Line Power Frequency

This paper presents a model for computing power frequency electromagnetic field of overhead high voltage transmission line based on simulation charge method. Based on this model, the electric field intensity under power line is calculated and the distribution is analyzed in different condition such as different distant between phase line, different phase order for double circuit, and different arrangement of line in single circuit or double circuit. According to the simulation results, the electric fields under overhead transmission line can be forecast. This is no doubt important in environment protection and available in the design of transmission line.