Dry-type transformer and method of manufacturing a dry-type transformer

摘要

A dry-type electrical transformer comprising:
- a coil assembly including at least one winding, said at least one winding comprising an electrical conductor (2) wound around a longitudinal axis into a plurality of concentric turns (3);
- at least one cooling sector (4) defined between adjacent turns of said plurality of concentric turns;
- a plurality of spacers (40) which are positioned inside said at least one cooling sector and are spaced from each other so as to allow having a plurality of air ducts (41) each defined between two adjacent spacers of said plurality of spacers; and
- at least one electrical shield (50) which is positioned in said at least one cooling sector and is arranged so as to electrically shield said plurality of air ducts.