Dry-type transformer

The utility model provides a dry-type transformer. The dry-type transformer comprises an iron core (10) and three winding assemblies (20). The iron core is provided with three iron core columns (12). Each winding assembly comprises a secondary winding (21), a pair of secondary outlet conductor rows (22), a primary winding (26) and a group of primary outlet conductor rows (27). And the secondary winding sleeves the iron core column and is formed by winding a conductor foil. The secondary outlet conductor bars are respectively welded on the secondary windings, and the secondary outlet conductor bars in the three winding assemblies respectively extend to a secondary leading-out position. The primary winding is sleeved on the secondary winding, is formed by winding a conductor foil and is divided into a plurality of voltage regulating sections; the primary outlet conductor bars are welded to the primary windings respectively, and the primary windings in the three winding assemblies are sequentially connected end