The overall package structure of the transformer body

Abstract

The invention relates to the technical field of transformers, in particular to an integral casing structure of a transformer body. It includes an inner coil and an iron core, a set cardboard tube is arranged between the inner coil and the iron core, and multi-layer stays and screens are installed outside the set cardboard tube, and the installed multi-layer stays and screens are arranged outside There is a coil paper tube, and an inner coil is wound outside the coil paper tube; a body supporting plate is provided under the suit cardboard tube, and the inner diameter of the body supporting plate matches the suit cardboard tube, and the body supporting plate Axially extending from the lower part of the suit cardboard tube to the outermost layer of the device body. In the present invention, a suit cardboard tube is arranged between the inner coil and the iron core, and the inner diameter of the support plate of the device body is matched with the suit cardboard tube, so that the stay and the screen between the inner coil and the iron core can be fixed first. Assembling achieves the effect of an overall set, and also realizes that the stays and screens are supported by pallets. This overall set process greatly simplifies the manufacturing process and ensures the reliability of the product.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an integral casing structure of a transformer body. Background technique [0002] As the power grid has higher and higher requirements for power supply quality, higher requirements have been put forward for the stability of power equipment. The transformer is one of the key power equipment in the grid, and the stability of the transformer determines the stability and quality of the grid power supply. Among the various assessments of transformers, the assessment of short-circuit resistance of transformers is the most demanding. The transformer damage caused by insufficient short-circuit capacity of the transformer will not be recoverable in a short period of time, and the impact will be very large. [0003] The whole package process of the transformer body can greatly improve the short-circuit resistance of the transformer, and the specific structure and process of various ...

AI Technical Summary

Problems solved by technology

However, for some innermost coils, the insulation level is relatively high, and the distance between the coil and the iron core is relatively large. When the overall assembly of the body is put into the iron core, it is found that the support effect of the coil and the iron core and the surrounding screen are very poor, which will cause the body The stability of the transformer becomes poor, and finally seriously affects the short-circuit resistance of the transformer

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