C-class three-dimensional wound core dry-type transformer for suspension installation

Abstract

A suspension-mounted C-grade three-dimensional wound core dry type transformer comprises an upper clamp, a lower clamp, mounting supports, holddown plates, cores and coils; the cores and the coils are arranged between the upper clamp and the lower clamp; silica gel cushions are arranged on the surfaces of the upper and the lower clamps, which are in contact with the cores, holddown blocks and holddown screws are arranged between the upper end surfaces of the coils and the upper clamp, and holddown blocks are arranged between the lower end surfaces of the coils and the lower clamp; steels are welded together to form approximately triangular frames as the upper and the lower clamps, the upper and the lower clamps are connected together through four compression screws, stay bars are arrangedbetween the coils and the cores, the lower end surfaces of the coils are tightly placed on the upper surfaces of the holddown blocks on the lower clamp, and the coils are then tightly pressed by tightening the holddown screws. Since the structure is adopted, besides the advantages of the conventional dry type transformer, such as safety, environment-friendliness and high overload capability, the main materials also have the characteristics of high insulating and heat-withstanding grades, little no-load loss, small exciting current, little noise, small size, light weight, high shock resistance, attractive appearance and the like.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and specifically refers to a C-level three-dimensional wound core dry-type transformer installed in suspension. Background technique [0002] At present, the dry-type transformers on the market are mostly installed on the ground, but due to some special site restrictions, the transformers are required to be small in size, light in weight, strong in shock resistance and suspended in installation, such as on locomotives. Although the traditional laminated core dry-type transformer can also be installed in suspension, its heavy weight and large volume can no longer meet the requirements of the site for the volume and weight of the transformer. In order to solve the above problems, we now introduce a class C three-dimensional wound core dry-type transformer with small size, light weight, strong shock resistance, and practical suspension installation. Contents of the invention [0...

AI Technical Summary

Problems solved by technology

Although traditional laminated core dry-type transformers can also be installed in suspension, their heavy weight and large volume can no longer meet the requirements of the site for transformer volume and weight.

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