Combined transformer coil supporting system

Abstract

The invention belongs to the technical field of transformers, aims to solve the problem that no axial heat dissipation channel exists in an existing transformer cake type coil, and relates to a combined transformer coil supporting system. The system comprises multiple layers of supporting assemblies used for bearing coil cakes; the multiple layers of supporting assemblies are connected through axial connecting assemblies; each supporting assembly comprises M combined cushion block units which are radially arranged on each layer of coil cakes; the combined cushion block units arranged on the adjacent coil cakes are arranged in a staggered mode; each combined cushion block unit comprises two groove-shaped gaskets which are arranged on the upper side and the lower side of each layer of coil cakes respectively; and a first opening groove with an inward opening is formed in one end of each groove-shaped gasket, a support assembly is arranged in each opening groove, a second opening groove which is perpendicular to the first opening groove and has an inward opening is formed in the support assembly and used for embedding a multi-turn winding. According to the combined transformer coil supporting system of the invention, a plurality of axial heat dissipation channels can be provided in the coil cakes, so that a coil structure is simplified, the coil strength is enhanced, and the overall heat dissipation efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of transformers, in particular to a combined transformer coil support system. Background technique [0002] Transformers are one of the most important power equipment supporting the power transmission network. With the continuous improvement of the power grid level, traditional transformers are facing more severe challenges; the problem of temperature rise has always restricted the direction of transformer miniaturization, low loss, and long life. The key factor of progress, and the coil is one of the most important heat sources inside the transformer, how to effectively dissipate heat from the coil is the key to solving the problem of temperature rise. [0003] For traditional pie coils, there are no axial heat dissipation channels in the individual pies. Usually, only axial heat dissipation channels are left at the inner and outer diameters of the coil pie, and the cooling medium is guided along the fixed ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems in the prior art, that is, to solve the problem that there is no axial heat dissipation channel inside the existing transformer cake coil, the present invention provides a combined transformer coil support system, which includes a support system for carrying the coil cake a multi-layer support assembly, the multi-layer support assembly is connected by an axial connection assembly;

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