Dry-type transformer with improved heat dissipation, and production process thereof

The invention discloses a dry-type transformer with improved heat dissipation, and a production process thereof. The dry-type transformer comprises a transformer base, iron core columns, a high-voltage and low-voltage voltage coil set sleeved on the iron core columns, and a plurality of assembly connecting pieces, wherein the iron core columns, the transformer base and the high-voltage and low-voltage coil set are assembled, installed and connected together through the assembling connecting pieces, the high-voltage and low-voltage voltage coil set comprises three high-voltage coils arranged atintervals and three low-voltage coils arranged at intervals, a first copper bar is arranged on the side, facing the iron core column, of the low-voltage coil, a second copper bar is arranged on the other side of the low-voltage coil, at least one bent heat dissipation plate is installed on the first copper bar, and the heat dissipation plates are made of heat conduction materials. The productionprocess comprises 1, windi