Dynamic overload on-load wide-amplitude pressure regulating distribution transformer

A distribution transformer, wide-width technology, applied in the field of transformers, to reduce temperature rise, improve power supply reliability, and solve the problem of low voltage quality

Inactive Publication Date: 2015-02-25
HEFEI HUAWEI AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The present invention is to avoid the deficiencies in the above-mentioned prior art, and provides a dynamic overload on-load wide-range voltage-regulating distribution transformer to solve the problem that the distribution transformer often operates in a light-load or no-load state and low voltage

Method used

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Embodiment Construction

[0048] see figure 1 , the dynamic overload on-load wide-amplitude voltage regulating distribution transformer of the present invention includes a low-voltage paper tube 1, a high-voltage paper tube 4 and a casing 10; a low-voltage coil 2 is arranged between the low-voltage paper tube 1 and the high-voltage paper tube 4 ; The low-voltage coil 2 includes two coils, and a low-pressure oil passage 15 is provided between the two coils of the low-voltage coil 2; Oil passage 3; a high-voltage coil is arranged between the high-voltage paper tube 4 and the casing 10, and the high-voltage coil is divided into a first part of high-voltage coil 5, a second part of high-voltage coil 6 and a third part of high-voltage coil 7; the The high-voltage paper tube 4 and the first part of the high-voltage coil 5 are arranged adjacent to each other, and a first high-pressure oil passage 8 is provided between the first part of the high-voltage coil 5 and the second part of the high-voltage coil 6. A...

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Abstract

The invention discloses a dynamic overload on-load wide-amplitude pressure regulating distribution transformer. The dynamic overload on-load wide-amplitude pressure regulating distribution transformer comprises a low-voltage paper tube, a high-voltage paper tube and an outer shell; two low-voltage coils arranged between the low-voltage paper tube and the high-voltage paper tube, and a low-voltage oil way is formed between the two low-voltage coils; an oil way between the high voltage and the low voltage is arranged between the low-voltage paper tube and the high-voltage paper tube; the high-voltage paper tube is adjacent to a first high-voltage coil, a first high voltage oil way is arranged between the first high-voltage coil and a second high-voltage coil, and a second high voltage oil way is arranged between the second high-voltage coil and a third high-voltage coil; a corrugation cooling fin is arranged in an oil tank of the transformer, an upper oil way opening and a lower oil way opening are formed in the corrugation cooling fin, and oil circulates between the upper oil way opening and the lower oil way opening. The dynamic overload on-load wide-amplitude pressure regulating distribution transformer can solve the problem that in the prior art, the distribution transformer often operates in the light load state or the unloaded state and at low voltage, and has the advantages that the good radiating effect is achieved, and the power distribution reliability is improved.

Description

technical field [0001] The invention relates to a transformer, in particular to a dynamic overload on-load wide-amplitude voltage regulating distribution transformer. Background technique [0002] The loss of the transformer occupies a very considerable proportion in the loss of the power grid, especially the distribution network is large and wide. Distribution transformers are widely used, and their power losses are of concern. The loss reduction of distribution transformers is directly related to the economic benefits of power companies and society. [0003] Distribution transformers are mainly used in rural power grids and urban distribution networks. The rural power grid load has the characteristics of strong seasonality and large peak-to-valley difference, while the peak-to-valley difference of urban power grid is more obvious, and its peak-to-valley rotation is more frequent. However, in order to meet the power demand during peak load, the transformer must be config...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/04H01F27/28H01F27/14
Inventor 宋少敏方丽莉李永祥
Owner HEFEI HUAWEI AUTOMATION
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