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Dry-type extraction oil immersed transformer

A technology of oil-immersed transformers and transformers, which is applied in the field of transformers

Inactive Publication Date: 2014-03-26
沈阳市敦敏电气有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a dry-type lead-out oil-immersed transformer, to at least solve the problems of high production cost and complicated structure of the conventional oil-immersed transformer, Low safety factor, difficult maintenance and other issues

Method used

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  • Dry-type extraction oil immersed transformer
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  • Dry-type extraction oil immersed transformer

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Embodiment Construction

[0026] Such as figure 1 Shown is a dry-type lead-out oil-immersed transformer, which includes a transformer oil tank 1 filled with transformer oil, and a transformer body 2 composed of high-voltage coils and low-voltage coils is arranged in the transformer oil tank 1, and the transformer The body 2 is immersed in the transformer oil as a whole, and an air cushion 12 is arranged between the upper cover 11 of the transformer oil tank 1 and the upper surface of the transformer oil. The low-pressure side leads to the bushing 4 connected. Because the transformer body 2 has no improvement with the traditional transformer body, therefore, figure 1 The specific structure of the transformer body 2 is not drawn in the figure.

[0027] The oil-immersed transformer uses dry-type bushings as high and low-voltage lead-out terminals. At the same time, an air cushion is installed under the upper cover of the transformer oil tank. The required high oil temperature problem saves a lot of e...

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Abstract

The invention discloses a dry-type extraction oil immersed transformer. The dry-type extraction oil immersed transformer comprises a transformer oil tank (1) filled with transformer oil, a transformer body (2), a high-pressure side extraction casing pipe (3) and a low-pressure side extraction casing pipe (4), the transformer body (2) is arranged in the transformer oil of the transformer oil tank (1) and comprises a high-voltage coil and a low-voltage coil, the high-pressure side extraction casing pipe (3) and the low-pressure side extraction casing pipe (4) are connected with the high-voltage coil and the low-voltage coil respectively through wires, an air cushion (12) is arranged between an upper cover (11) of the transformer oil tank (1) and the upper surface of the transformer oil, and the high-pressure side extraction casing pipe (3) and the low-pressure side extraction casing pipe (4) are dry-type casing pipes. The transformer has the advantages of being simple in structure, concise in design, high in safety coefficient, small in maintaining quantity, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to a transformer, and in particular provides a dry-type lead-out oil-immersed transformer. Background technique [0002] Oil-immersed transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It mainly relies on transformer oil as the cooling medium for cooling and cooling. According to the cooling method of oil-immersed transformers, it can be divided into oil-immersed self-cooling, oil-immersed air-cooled, oil-immersed water-cooled, forced oil circulation, etc. Since the existing oil-immersed transformer requires a high oil level, it is necessary to use an oil conservator or a tubular oil gauge to raise the oil level and press the oil level so that the transformer oil is filled with the oil-immersed bushing, and the overall sealing requirements of the product are very high. The oil pressure is high, the maintenance is heavy, and the oil-ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14H01F27/32H01F27/08
Inventor 曲鸣
Owner 沈阳市敦敏电气有限责任公司
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