Arrangement structure of lead wires of a converter transformer

Abstract

The invention relates to a converter transformer lead arrangement structure. The converter transformer lead arrangement structure comprises a combined hoisting base above an oil tank body, wherein the combined hoisting base comprises a transverse base body and vertical base bodies communicating with the transverse base body respectively, the number of the vertical base bodies is the same as that of core legs, and the lower ends of the vertical base bodies are arranged above the oil tank body corresponding to coil assembling positions; coil leads on a coil assembler pass through the oil tank body to be introduced into the corresponding vertical base bodies and are merged at the position of a sleeve; and a plurality of lead insulated screening tubes in end-to-end connection through screening tube transition pieces sleeve the outside of coil leads positioned inside the combined hoisting base. According to the converter transformer lead arrangement structure, the volume of a transformer is reduced, the use of rolled steel and transformer oil is reduced, and the transportation of transformers is facilitated; meanwhile, due to the fact that a cylindrical electrode is arranged inside the combined hoisting base, so that the distribution of electric field intensity is more uniform, the insulation reliability can be improved, the product quality is guaranteed, and the production cost is also reduced.

Description

technical field [0001] The invention belongs to the technical field of converter transformers, and in particular relates to an arrangement structure of lead wires of a converter transformer. Background technique [0002] In recent years, with the continuous development of UHV DC transmission projects, high-voltage, large-capacity converter transformers have increasingly become an inevitable trend of development. The increase of the capacity of the converter transformer will be accompanied by some new problems. The most direct is that the overall size of the transformer will increase. However, both road transportation and rail transportation have size restrictions. The shape of the transformer must be controlled within a certain range, which plays a certain role in restricting the design and manufacture of the transformer. Contents of the invention [0003] In view of the above problems, the present invention provides a lead wire arrangement structure, which reduces the ...

AI Technical Summary

Problems solved by technology

However, both road transport and rail transport have size restrictions

The shape of the transformer must be controlled within a certain range, which plays a certain role in restricting the design and manufacture of the transformer.

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