Combined transposition wire structure with prefabricated oil duct and manufacturing method thereof

The invention relates to a combined transposition wire structure with a prefabricated oil duct and a manufacturing method thereof and belongs to the technical field of transformer manufacturing. According to the technical scheme, the combined transposition wire structure comprises a combined transposition wire (4) and oil duct seat pads (1), wherein the combined transposition wire is formed by combining two or more single-stranded transposition wires (2) in parallel in a winding axial direction; and the oil duct seat pads are paved and fixed on the upper surface of the combined transposition wire. The combined transposition wire structure with the prefabricated oil duct has the beneficial effects that 1) the difficulty that the addition of the interturn oil duct seat pads can not be completed when multi-stranded wires are subjected to parallel winding in a radial direction is fundamentally overcome; 2) the height-width ratio of a wire harness is greatly reduced under the condition that the section of the wire