Oil-immersed transformer based on magnetic type damping sound insulation plate

A technology of oil-immersed transformers and sound insulation boards, which is applied in transformer/inductor cooling, transformer/inductor noise damping, etc., and can solve technical difficulties, high cost, low cost, and low-frequency signal noise reduction effects need to be improved. , to achieve the effect of no increase in design cost and construction cost, low cost, easy installation and maintenance

Pending Publication Date: 2021-07-20
STATE GRID HUNAN ELECTRIC POWER +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former can directly reduce the noise level of the transformer from the source by improving the material and structure of the body, and the noise reduction effect is the most significant, but the technical difficulty and cost are relatively high
The latter reduces transformer noise by applying sound-insulating / absorbing (vibration) materials in the process of noise (vibration) propagation to absorb vibration-acoustic signal energy, which has a certain noise reduction effect and relatively low cost, but for low-frequency signal reduction Noise still needs to be improved

Method used

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  • Oil-immersed transformer based on magnetic type damping sound insulation plate
  • Oil-immersed transformer based on magnetic type damping sound insulation plate
  • Oil-immersed transformer based on magnetic type damping sound insulation plate

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 to Figure 3 It shows an embodiment of the oil-immersed transformer based on the magnetic damping sound insulation board of the present invention. In this embodiment, the damping sound insulation board is installed and tested on a scale model of a 110kV test transformer. The damping sound insulation board is installed and tested. The sound board 2 is installed between the oil tank shell 1 of the transformer and the heat sink 4, and is fixed on the sides 13 of the oil tank shell 1 of the transformer by strong magnets; the structure of the damping sound insulation board 2 is composed of two layers of aluminum layers and a flexible sound insulation layer 22, the flexible sound insulation layer 22 is placed between two aluminum layers, the two damping sound insulation panels 2 adjacent to the same side 13 are overlapped by...

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Abstract

An oil-immersed transformer based on a magnetic type damping sound insulation plate comprises an oil tank shell, the oil tank shell comprises a top face, a bottom face and a plurality of side faces connected between the top face and the bottom face, and at least one side face is provided with the damping sound insulation plate and is attracted and fixed through a magnetic part. The transformer has the advantages of being compact in structure, low in cost, beneficial to reducing the noise of the transformer body and the like.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to an oil-immersed transformer based on a magnetic damping sound insulation board. Background technique [0002] The power transformer is an important part of the power transmission and distribution network of the power system. Its main purpose is to convert the grid voltage to achieve power transmission. With the continuous increase of the scale of the power grid and the shortage of urban land resources, more and more substations are located deep into the city center. Due to a series of reasons such as uneven manufacturing process, aging equipment, long-term operation, and close distance to sensitive points, the noise pollution problem of power transformers has become increasingly prominent. Research on transformer noise control technology is of great significance for the development of power grids. [0003] The noise of the transformer comes from the transformer body and ...

Claims

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Application Information

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IPC IPC(8): H01F27/14H01F27/33
CPCH01F27/14H01F27/33
Inventor 陈炜胡胜卢铃曹浩陈非谢银娥唐奇车垚
Owner STATE GRID HUNAN ELECTRIC POWER
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