Transformer winding with cooling channel
At least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical cooling channel arranged therebetween by means of insulation strips, wherein the insulation strips have a cross-sectional form which avoid a surface profile radially with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material.
1. A transformer winding comprising:
at least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis,
wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical air cooling channel arranged therebetween through insulation strips,
wherein the insulation strips extend along an axial length of said winding modules and have a cross-sectional form that predominately avoids a surface profile that is radial with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material,
wherein the at least one cooling channel has a radially inner wall and a radially outer wall, and
wherein the insulation strips have one of an X-shaped or Y-shaped cross section.
2. The transformer winding as claimed in claim 1 , wherein the insulation strips have a cross section with saw-tooth-like outer edges.
3. The transformer winding as claimed in claim 1 , wherein the insulation strips have a flattened form, at least one of a radially inner end, and a radially outer end.
4. The transformer winding as claimed in claim 1 , wherein the winding modules are galvanically connected to one another.
5. A transformer, comprising at least one transformer core and one transformer winding as claimed in one of claim 1 .