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A transformer winding compression device

A transformer winding and compression device technology, applied in the field of transformers, can solve problems such as small compression area, poor uniformity of axial compression, complicated manufacturing of pressure nails and pressure nail washers, etc., to ensure effective compression and reliability , the effect of large compression area

Active Publication Date: 2017-12-01
WUJIANG TRANSFORMER CO LTD
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  • Abstract
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Problems solved by technology

Since there is a metal material inside the nail washer, in order to ensure the insulation distance to the high-voltage lead wire, the diameter of the nail washer should not be too large, so the pressing area is small and the uniformity of axial pressing is poor.
Moreover, the manufacturing of the nails and the nail washers is relatively complicated and the cost is high
In addition, the pressing block structure adopted in the prior art cannot guarantee the effectiveness and uniformity of the axial compression of the transformer winding, and the compression effect is not ideal

Method used

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Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0014] Such as figure 1 and figure 2 As shown, a transformer winding pressing device includes a winding pressing plate 1, an upper support 2 and a pressing assembly. The pressing assembly includes a pressing block 3, an adjusting cardboard 4, insulating bolts 5 and an oil pressure cylinder 6. The winding pressing plate 1 is arranged on the transformer winding, the upper support 2 has a plate clamp 21 and a horizontal support plate 22 vertically arranged on one side of the plate clamp 21, and the pressing assembly is arranged below the horizontal support 22 of the upper support 2 , the press block 3 is arranged on the winding press plate 1, the ...

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Abstract

The invention discloses a transformer winding compression device including a winding pressure plate, an upper support member, and a compression component, the compression component includes a briquette, an adjusting cardboard, an insulating bolt and an oil hydraulic cylinder, the winding pressure plate is arranged on a transformer winding, the upper support member is provided with a plate clamp member and a horizontal support plate, the compression component is arranged under the horizontal support plate of the upper support member, the briquette is arranged above the winding pressure plate, the horizontal support plate of the upper support member is arranged above the briquette, the adjusting cardboard is arranged between the horizontal support plate of the upper support member and the briquette, the insulating bolt successively penetrates through the horizontal support plate, the adjusting cardboard, and the briquette from the top to the bottom, the briquette and the adjusting cardboard are provided with arc-shaped notches, the arc-shaped notches of the briquette and the adjusting cardboard form an accommodating cavity together, and the oil hydraulic cylinder is arranged in the accommodating cavity. The transformer winding compression device guarantees the effective compression and the compression uniformity of the transformer winding, and the arrangement of the structure can reduce the demand for operation space.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a transformer winding pressing device. Background technique [0002] Axial compaction of large power transformer windings is a very important factor to improve the sudden short circuit resistance of the transformer. In terms of structural design, the compression device of the transformer winding should try to achieve the effectiveness and uniformity of axial compression, and the height can be easily adjusted to compensate for manufacturing errors. The compression device in the prior art generally adopts a nail structure or a briquetting structure to compress the transformer winding. figure 1 The structure shown is a traditional nail structure. The lower end of the nail has a washer, and a metal material is arranged inside the washer. The pressing nail is arranged in the pressing device, and the pressing of the transformer coil winding is realized by tightening the pressing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/04H01F27/30
CPCH01F27/306H01F41/04
Inventor 张新根
Owner WUJIANG TRANSFORMER CO LTD
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