Research on ground wire ice melting technology of high-voltage transmission line

High-voltage line ice covering is not only related to the stable operation of the power grid, but also affects people's normal life and the operation of industrial and mining enterprises. At present, some exploration and research on the anti-ice melting technology of transmission lines have been carried out in foreign countries, and some research results have been applied to the process of transmission line melting, and the effect is also ideal after practice. However, due to the incomplete insulation of the overhead ground wire, when the ice is serious, the measures cannot be taken, resulting in the damage of the tower and the shutdown of the line. For this reason, the common ice melting methods are compared according to the ice melting mechanism. Three kinds of ground wire ice melting schemes are proposed, namely, ground wire series loop mode, ground wire parallel mode and long line section mode, to improve the overall ice melting capacity and range of high voltage transmission lines, and further improve the reliability of transmission lines.