Designing and adjusting method for gear of rectifier transformer of ice melting device and ice melting device

The invention relates to the technical field of electrical engineering, in particular to a rectifier transformer gear design and adjustment method of an ice melting device and the ice melting device. The rectifier transformer gear design method of the ice melting device comprises the following steps: acquiring a maximum working voltage and a minimum working voltage required by an ice melting line with a preset length; setting the gear number of the rectifier transformer; and corresponding to the maximum working voltage, the minimum working voltage and the gear number, setting the voltage value corresponding to the output of each gear as a geometric progression. According to the technical scheme disclosed by the invention, the voltage of each gear of the transformer is reasonably designed, so that the ice melting device outputs the finely-adjusted ice melting voltage, the ice melting device shows relatively good adaptability to the to-be-ice-melted power lines with various line types and line lengths in a melt