Novel insulating paper applied to transformer

Abstract

The invention relates to the technical field of insulating paper, in particular to novel insulating paper applied to a transformer. The novel insulating paper comprises a polyester film formed by slicing and biaxially stretching modified polyester, wherein a rhombus-shaped adhesive layer made of epoxy resin adhesive is coated on the polyester film. As the polyester film has excellent mechanical performance, machinability and good electric insulating performance and the epoxy resin adhesive has excellent bonding viscosity at the same time, the novel insulating layer has good dielectric performance, good dimensional stability, high hardness and good flexibility. Therefore, by adopting the structure, when the novel insulating paper is used in the transformer, the problems of poor mechanical strength, product dislocation, partial discharge, and the like have low probability of being caused, and the insulating performance and the safety performance of the transformer are effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of insulating paper, in particular to a novel insulating paper used in transformers. Background technique [0002] At present, many designers of high-voltage electrical appliances have proposed that the use of insulating materials in high-voltage electrical appliances such as transformers has a very significant effect on improving the electric field distribution, strengthening the insulation strength, and improving the safety and stability of high-voltage electrical appliances. Insulation materials have been widely used in developed countries abroad, and only a small number of domestic manufacturers use products produced by foreign companies, but their prices are relatively expensive. However, many transformer factories use conventional adhesives and ordinary cable paper. During the use of the transformer, it is easy to cause problems such as poor mechanical strength, product misalignment, and partial discha...

AI Technical Summary

Problems solved by technology

Insulation materials have been widely used in foreign developed countries, and only a small number of domestic manufacturers use products produced by foreign companies, but their prices are relatively expensive

However, many transformer factories use conventional adhesives and ordinary cable paper. During the use of the transformer, it is easy to cause problems such as poor mechanical strength, product misalignment, partial discharge, etc., which seriously affects the insulation performance and safety performance of the transformer.

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