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Noise reduction apparatus for transformer, transformer oil tank and transformer

A transformer oil tank and transformer technology, applied in the field of transformers, can solve the problems of insignificant effect and high cost, and achieve the effects of good noise reduction effect, low cost, good durability and reliability

Inactive Publication Date: 2016-07-27
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the one hand, the effect of this method is not obvious, and on the other hand, the cost is also high.

Method used

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  • Noise reduction apparatus for transformer, transformer oil tank and transformer
  • Noise reduction apparatus for transformer, transformer oil tank and transformer
  • Noise reduction apparatus for transformer, transformer oil tank and transformer

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The inventors of the present application found that the main reason for the noise of the transformer is: in the transformer, the magnetostriction of the core silicon steel sheet and the vibration of the coil winding caused by the load current, the vibration is transmitted to the wall surface of the oil tank through the coupling of the connecting member and the transformer oil body , resulting in radiated noise. Further, the inventor considers that the effect of noise reduction can be realized by blocking or reducing the conduction of the internal vibration of the transformer to the external box.

[0030] Based on this, an embodiment of the present invention provides a noise reduction device for a transformer, please refer to ...

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Abstract

The invention discloses a noise reduction device for a transformer, a transformer oil tank and a transformer. The noise reduction device includes: a noise reduction board, and an insulating layer covering the surface of the noise reduction board; the noise reduction board includes: at least two cardboard layers, and a metal sheet layer arranged between adjacent cardboard layers; Moreover, the topmost layer and the bottommost layer of the noise reduction board are both cardboard layers. The noise reduction device has the advantages of low cost and good noise reduction effect. Moreover, since the noise reduction device can be arranged in the idle space in the transformer oil tank, there is no need to avoid the line, and it is not necessary to increase the volume of the transformer. At the same time, the straight inner wall of the transformer is also conducive to simplifying the structure of the noise reduction device, making it easy to process and realize industrial production.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a noise reduction device for a transformer, a transformer oil tank and a transformer. Background technique [0002] With the rapid advancement of my country's power transmission and transformation projects represented by UHV, substations have developed rapidly as relay stations for power transmission. The continuous expansion of urban scale in recent years has made many substations close to environmentally sensitive areas such as residential areas, schools, and hospitals. The noise of substations has seriously affected the work and life of surrounding residents. [0003] In order to reduce the noise pollution of the transformer, the prior art has used to improve the structure of the transformer, and expect to achieve the effect of noise reduction by reducing the vibration of the components. However, on the one hand, the effect of this method is not obvious, and on the other...

Claims

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Application Information

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IPC IPC(8): H01F27/33H01F27/14
CPCH01F27/33H01F27/14
Inventor 马裕超莫娟樊宝珍徐金张霞许志勇杨臻沈鸿冰
Owner CHINA ELECTRIC POWER RES INST
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