Double-layer copper pipe winding for track transformer

Abstract

The invention relates to a double-layer copper pipe winding for a track transformer. The winding comprises a high-voltage winding and a low-voltage winding; the high-voltage winding is arranged in thelow-voltage winding; more than one H-level insulating material layer is wound on the outer surface of a hollow copper pipe, and H-level insulating glue is poured between the high-voltage winding andthe low-voltage winding; the two wiring ends of the hollow copper pipes of the high-voltage winding and the low-voltage winding are connected with wiring bases in a welded mode; and pipe openings of the two wiring ends of the hollow copper pipes of the high-voltage winding and the low-voltage winding are connected with straight-through clamping sleeve connectors of an external cooling water pipe in a welded mode. The double-layer copper pipe winding is simple in structure. Due to the water internal cooling type structure of the hollow copper pipes, the temperature of the winding can be effectively reduced, the service life can be prolonged, the insulating property is good, magnetic field distribution is uniform, and the magnetic induction intensity is high.,

Description

technical field [0001] The invention relates to a transformer device, in particular to a double-layer copper tube winding for a track transformer. Background technique [0002] At present, the transformer used in the track signal control system adopts the form of flat wire winding. The current of this type of winding is highly concentrated on the surface of the conductor, which is prone to skin effect, resulting in reduced winding efficiency, copper loss, and abnormal temperature rise of the transformer. In addition, it is difficult to make the flat wire winding, and the service life is relatively short, and the economic benefit is not high. Contents of the invention [0003] In order to solve the above problems, the present invention provides a simple structure, a hollow copper tube water internal cooling structure, which can effectively reduce the winding temperature, prolong the service life, and has good insulation performance, uniform magnetic field distribution and h...

AI Technical Summary

Problems solved by technology

[0002] At present, the transformer used in the track signal control system adopts the form of flat wire winding. The current of this type of winding is highly concentrated on the surface of the conductor, which is prone to skin effect, resulting in reduced winding efficiency, copper loss, and abnormal temperature rise of the transformer.

In addition, it is difficult to manufacture flat wire windings, and the service life is relatively short, and the economic benefits are not high.

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