Resin pouring dry-type transformer with high-voltage coil structure

Abstract

The invention relates to a resin pouring dry-type transformer with a high-voltage coil structure, and the transformer comprises a plurality of groups of transformers, wherein each transformer comprises a high-voltage coil, a low-voltage coil and an insulating sleeve, and the insulating sleeves are arranged in adjacent coils of the high-voltage coils and used for avoiding direct contact of leads between two adjacent layers of high-voltage coils; the service life of the transformer is prolonged, the real-time voltage of the transformer is large, more heat is generated, the use time is long, thegenerated heat is increased, if the real-time voltage of the transformer is large and more heat is generated, for consideration of safety, the use priority of the transformer is lowered, and when thereal-time voltage of the transformer is small and less heat is generated, the use priority can be improved and preferentially selected for use according to actual needs, so the use scheduling of the transformer is more intelligent, the use safety of the transformer bank can be integrally improved, the coefficient of accidents such as fire and overcurrent is reduced, and the service life of the transformer bank is prolonged.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a resin casting dry-type transformer provided with a high-voltage coil structure. Background technique [0002] Resin cast dry-type transformers are widely used in the power grid, but their main insulation structure has not changed for many years. The standard requirements for voltage and lightning impact, the distance between high and low voltage main channels is 33-95mm, the phase distance is 33-95mm, and the distance between the coil end face and the iron core is between 40-60mm; this structure hinders the optimization of resin dry-type transformers The design, the size of the transformer and the amount of materials used cannot be reduced, which is a flaw in the dry-type transformer industry. [0003] During the operation of the dry-type transformer, there is creepage phenomenon on the surface of the high-voltage coil. The reason is that the humidity of the environment is hi...

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Problems solved by technology

[0003] During the operation of the dry-type transformer, there is creepage phenomenon on the surface of the high-voltage coil. The reason is that the humidity of the environment is high and the pollution level is high, so that the surface of the high-voltage coil is damp and forms a conductive bridge. This kind of creepage is a hidden danger for the safe operation of the transformer. In severe cases, the transformer will be burned

[0004] At the same time, during the manufacturing process of the product, insulating

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