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

Abstract

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 harness is ensured not to be changed, and the phenomena that the wire harness is easy to incline and be in disorder are avoided, thus the combined transposition wire structure has good winding manufacturability; 3) the addition process of the oil duct seat pads is omitted when winding manufacturing is carried out, thus the difficulty of a coil winding process is obviouslyreduced; and 4) the winding quality and production efficiency of the coil are improved.

Description

technical field [0001] The invention relates to a combined transposition wire structure with a prefabricated oil passage and a manufacturing method thereof, belonging to the technical field of transformer manufacturing. Background technique [0002] At present, the winding wires widely used in large-scale transformer coils are mainly paper-wrapped wires, combined wires and ordinary transposed wires. Their winding process and performance are recognized by the majority of transformer manufacturers. The structural design and winding process are becoming more and more complicated. The single structure form of ordinary winding wire can no longer meet the special winding requirements, and even the coils of some structures cannot be wound with the current winding process. It is imminent to develop and manufacture new winding wire structures for structural coil winding power and work efficiency. In the background technology, there is a winding structure in the coil winding, which i...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a combined transposition wire structure with prefabricated oil passages and its manufacturing method, which solves the problem of inclined misalignment when multiple transposition wires are radially wound together, and also overcomes the problem of adding oil passages between each wire Difficulties encountered in pads, providing a new solution for the winding process

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