Transformer body structure of single-phase direct-buried dry-type transformer

Abstract

The invention discloses a transformer body structure of a single-phase direct-buried dry-type transformer, which belongs to the technical field of transformers and comprises an iron core, low-voltagewindings respectively sleeve opposite sides of the iron core, high-voltage windings are arranged outside the low-voltage windings, and the high-voltage windings and the low-voltage windings are integrally formed by pouring epoxy resin. A shielding layer and a high-voltage outgoing line pile head are arranged in the outer side of each high-voltage winding; and a high-voltage outgoing line shieldinglayer is arranged in the outer side of the high-voltage outgoing line pile head. The high-voltage windings and the low-voltage windings are integrally formed through vacuum pouring of epoxy resin. Anintegral body is formed and sleeves the iron core; the high-voltage windings are connected with the low-voltage windings; a resin layer is formed between each high-voltage winding and the shielding layer; the resin layer is used for replacing air and transformer oil, so that insulation is realizable and the size is small, partial discharge can be avoided through shielding and protection of the shielding layer and the high-voltage outgoing line shielding layer, the sealing, waterproof, anti-corrosion, rust-proof and heat dissipation performances are high, the transformer body structure can beflexibly applied to underground environment, and the practicality is high.

Description

technical field [0001] The invention belongs to the technical field of transformers, in particular to a body structure of a single-phase directly buried dry-type transformer. Background technique [0002] At present, in conventional power supply, several traditional power supply schemes cannot meet the requirements of outdoor all-weather uninterrupted operation, which has brought great troubles to power supply and urban management. The main application types are: traditional box room substation and buried transformer. For the traditional box-type substation, its heat dissipation performance is not good, it occupies a large area, and its appearance is not uniform, which is incompatible with the beautiful urban environment; while the buried transformers are mostly oil-immersed transformers, but oil-immersed transformers have maintenance work Large volume, easy to be corroded, easy to rust, high environmental requirements, and the traditional buried oil-immersed transformer is ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the poor heat dissipation performance of today's box-type substations, large floor space, inconsistent appearance, and incompatible with the beautiful urban environment, most of the buried transformers are oil-immersed transformers, which are too large and require heavy maintenance. High requirements on the environment, which is not conducive to the problem of placement in the green belt, the invention provides a body structure of a single-phase direct-buried dry-type transformer

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