Support structure for at least one winding of a power transformer, power transformer and method for manufacturing

A support structure for one or more windings wound around a core of a transformer leg of a power transformer, comprising:

• a press structure configured to transfer and distribute a compression force from a yoke of the power transformer to the one or more windings;
• an insulator structure configured to electrically insulate the yoke from the one or more windings;
• and
• a coolant flow structure (13) configured to guide and distribute a flow of a liquid coolant to or from different parts of the one or more windings;
• wherein
• the press structure, the insulator structure and the coolant flow structure (13) are formed as one integrated part;
• the integrated part comprises a polymer material;
• and
• the coolant flow structure of the integrated part comprises a plurality of first orifices arranged at a first side of the support structure facing the yoke and a plurality of second orifices arranged at a second side of the support structure facing the one or more windings, and a plurality of protrusions formed on the first side and/or the second side, wherein the first and second orifices and the plurality of protrusions are configured to guide the flow of the liquid coolant from the first side to the second side.