Transformer with improved insulation structure

Abstract

The invention discloses a transformer with an improved insulation structure. The transformer comprises a first outer side winding wire layer, a second outer side winding wire layer, a gradient winding wire layer and pieces of interlayer insulating paper, wherein the gradient winding wire layer is arranged between the first outer side winding wire layer and the second outer side winding wire layer; the pieces of interlayer insulating paper are arranged among the winding wire layers; and gradient winding combinations are arranged along a diagonal line of the first outer side winding wire layer and the second outer side winding wire layer. According to the transformer provided by the invention, the pieces of interlayer insulating paper are placed in a multi-gradient manner; with the adoption of the structure, the quantity of the interlayer insulating paper among the winding wire layers can be reduced; and under the condition that the insulation between the winding wire layers of the transformer meets an electric distance, the size of a transformer winding is smaller while the quantity of the interlayer insulating paper is less; therefore, with the adoption of the transformer provided by the invention, the size of the transformer winding can be effectively reduced so as to reduce the loss and the material consumption of the transformer.

Description

technical field [0001] The invention relates to a transformer, in particular to a transformer capable of effectively reducing the size of the transformer winding, thereby reducing the loss of the transformer and improving the insulation structure of consumable materials, belonging to the technical field of power transmission equipment. Background technique [0002] At present, with the rapid development of low-carbon environmental protection economy, it is more and more important to reduce the loss of transformer (including no-load loss and load loss) and consumables. The existing technology of interlayer insulation of transformer windings is graded insulation (see attached figure 1 shown), including the first winding wire layer 1, the second winding wire layer 3, the third winding wire layer 4, and the interlayer insulating paper 2; the second winding wire layer 3 is arranged between the first winding wire layer 1 and the second winding wire layer Between the three winding...

AI Technical Summary

Problems solved by technology

The existing technology of interlayer insulation of transformer windings is graded insulation (see attached figure 1 shown), including the first winding wire layer 1, the second winding wire layer 3, the third winding wire layer 4, and the interlayer insulating paper 2; the second winding wire layer 3 is arranged between the first winding wire layer 1 and the second winding wire layer Between the three winding wire layers 4; the interlayer insulating paper is arranged between each winding wire layer; its disadvantage is that there are more insulations and the winding size is large, so it is difficult to reduce the loss and consumables of the transformer. The problem of interlayer insulation technology is imminent

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