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Transformer body holddown and method

A compression device and transformer technology, applied in the field of transformer manufacturing, can solve the problems of low production efficiency, additional loss leads, discharge, etc., achieve the effect of simple structure, reduce the main insulation distance, and improve production efficiency

Active Publication Date: 2015-04-29
WOLONG ELECTRIC GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of low production efficiency, additional loss and discharge of the lead wire to the nail sleeve due to the use of the nail sleeve structure in the prior art

Method used

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  • Transformer body holddown and method
  • Transformer body holddown and method

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Experimental program
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Embodiment Construction

[0033] Below in conjunction with each accompanying drawing, the present invention is described in detail.

[0034] Such as figure 2 , 3 As shown, a compacting device for a transformer body includes a web 1 arranged on the transformer iron core, and also includes several compacting mechanisms arranged at intervals along the length direction of the web 1, and each compacting mechanism includes:

[0035] The connector 2 is arranged in parallel above the pressure plate 6 on the top of the body, and one end is fixed on the web 1, and the connector 2 has a threaded hole;

[0036] The two ends of the laminated block 9 abut against the connector 2 and the pressing plate 6 respectively, and the top of the laminated block 9 has a positioning hole corresponding to the threaded hole;

[0037] The bolt 8 is matched with the threaded hole, and the end extends into the positioning hole. In this embodiment, the bolt 8 can be a standard part or an insulating part.

[0038] Such as figure...

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Abstract

The invention discloses a transformer body holddown and a method. The transformer body holddown partially comprises a web arranged on a transformer core, and further comprises a plurality of holddown mechanisms which are arranged at intervals along the length direction of the web, and each holddown mechanism consists of a connecting part, a laminating block and a bolt; each connecting part is arranged in parallel over holddown plates on the top of a transformer body, moreover, one end of each connecting part is fixed on the web, and each connecting part is provided with a threaded hole; both ends of each laminating block respectively abut against the corresponding connecting part and the holddown plates, and the top end of each laminating block is provided with a positioning hole corresponding to the corresponding threaded hole; each bolt is fitted in the corresponding threaded hole, and the end of each bolt extends into the corresponding positioning hole. As each holddown mechanism only consists of three parts, compared with the structure of the conventional pressure bolt structure with five parts, the structure is simpler, consequently, the efficiency of production is increased greatly, and cost is reduced; each laminating block is made of insulating material, thus reducing main insulation distance and decreasing the discharge probability of windings and leads.

Description

technical field [0001] The invention relates to the field of transformer manufacturing, and relates to a transformer body pressing device and method. Background technique [0002] With the expansion of power grid capacity, people have higher and higher requirements for the reliability of transformer operation in the process of power transmission. Therefore, improving the short-circuit resistance of transformer is undoubtedly the most favorable measure to improve the reliability of transformer operation. In the production of transformers, under the condition that other factors remain unchanged, to improve the short-circuit resistance of transformers, it is necessary to improve the reliability of the compact structure of the transformer body. [0003] Such as figure 1 As shown, it is a schematic diagram of an existing nail-type pressing device, which includes a web 1 and a connecting piece 2 whose end is fixed on the web 1. Press the nail set on the top to compress the body,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/30H01F41/04
Inventor 孙勇王伟侯春杰孙长山
Owner WOLONG ELECTRIC GRP CO LTD
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