Compacting process of flexible pipe on transformer

A technology of transformers and hoses, which is applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc. It can solve the problems of deformation of the pressure plate, reduction of transformer anti-short circuit capacity, and uneven force on windings, etc., to achieve improved short circuit resistance. Low cost and uniform force effect

Active Publication Date: 2008-05-14
XIAN XIDIAN TRANSFORMER
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AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a transformer body hose compression process, which solves the technical problems of deformation of the pressure plate during compression, uneven force on the windings, and reduced short-circuit resistance of the transformer in the background art

Method used

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  • Compacting process of flexible pipe on transformer
  • Compacting process of flexible pipe on transformer
  • Compacting process of flexible pipe on transformer

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Embodiment Construction

[0032] see Figure 1~3 , the implementation steps of the present invention are as follows:

[0033] (1) On the clips 1 at both ends of the transformer body, force-bearing substrates 3 are respectively arranged to make the force uniform.

[0034] (2) Level the iron core steps at both ends of the transformer body with insulating laminates 4, so that the inner surface of the insulating laminate 4 and the inner surface of the iron yoke 7 are on the same plane.

[0035] (3) A hose groove 9 is set on the upper body pressure plate 8 of the transformer body, and the size of the hose groove 9 is appropriate to the width and thickness of the hose 11 and a margin is left. For making the body stressed evenly, it is better that the hose groove 9 is symmetrically arranged on the upper body pressing plate 8. The density of the hose groove 9 is determined according to the required pressure of the transformer winding. The width of the hose groove 9 is preferably 100-110 mm, and the depth of...

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Abstract

The technique of the invention relates to a compaction technology for a transformer body. The technology arranges a support board and a force substrate respectively on clamping parts at two ends of the transformer body and levels up an iron core step with a pressure plate of an insulating layer, thus ensuring that the pressure plate of the insulating layer and an inner surface of an iron yoke are on a same plane. A pressure plate on the upper body has a hose groove into which a hose is led. One end of the hose is sealed, and the other end is communicated with a hydraulic system. The surface of the pressure plate on the upper body has a protective layer. The hydraulic system is started up to fill oil and increase pressure in the hose and then keeps the pressure after a stated pressure is reached. A stay plate which is dried in advance is pushed into the hose, and the hose discharges oil and pressure and then exits from the hose groove. The dried stay plate is pushed into the hose groove to finish the compaction for the transformer body. The invention solves the technical problems in the background technique such as poor reliability during compaction which leads to decreased performance of short circuit withstanding of the transformer. The invention can ensure even stress on a winding group of the transformer and can present simple realization technology and low cost.

Description

technical field [0001] The technology of the invention relates to a compression process of a transformer body, in particular to a compression process of a hose for windings of a large transformer body. Background technique [0002] At present, the compression of transformer windings generally adopts the compression method of pressing screws, that is, pressing the insulating pressing plate with pressing screws, and then acting on the transformer winding through the insulating pressing plate. This method mainly has the following disadvantages: [0003] 1. The mode of action is single, the upper pressing plate is easily deformed when the body is pressed, the winding is unevenly stressed, and the short-circuit resistance ability is reduced. [0004] 2. During the pressing operation of the device body, metal foreign objects produced by pressing devices such as pressing nails fall into the device body, causing potential safety hazards. Contents of the invention [0005] The ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/00
Inventor 李强陈敏懋翟海清
Owner XIAN XIDIAN TRANSFORMER
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