Method for enhancing insulativity and mechanical strength of high-tension coil of amorphous alloy transformer

A high-voltage coil, mechanical strength technology, applied in the direction of transformer/inductor coil/winding/connection, coil manufacturing, etc., can solve the problems of coil looseness, high and low voltage coil insulation layer strengthening, amorphous alloy transformer to be improved, etc., to achieve improvement Dielectric strength, improving insulation performance, and improving the effect of the ability to withstand sudden short-circuit accidents

Inactive Publication Date: 2010-12-01
SHANGHAI FLYING KING ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional process fails to solve the problem that the coil, especially the wire-wound high-voltage coil, may loosen under the action of electromotive force.
[0005] In addition, the traditional process does not add addition

Method used

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  • Method for enhancing insulativity and mechanical strength of high-tension coil of amorphous alloy transformer
  • Method for enhancing insulativity and mechanical strength of high-tension coil of amorphous alloy transformer
  • Method for enhancing insulativity and mechanical strength of high-tension coil of amorphous alloy transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1-3 As shown, after completing the winding process of the low-voltage coil except the last layer according to the traditional process, perform the following operations:

[0027] Step 1: Wrap the side ends of the special copper tape of the last layer of the transformer for the low-voltage coil 1 of the low-voltage winding with rhombic dispensing paper, and fix the rhombic dispensing paper with glass fiber paper tape;

[0028] Step 2: Put the copper tape of the transformer that has been wrapped with rhombic dispensing paper on both ends of the side, tightly wrap it on the insulating layer of the upper rhombic dispensing paper, and then use the glass fiber paper adhesive tape on the low voltage coil 1 The last layer of copper tape is fixed, and then a layer of rhombus dispensing paper is used for interlayer insulation;

[0029] Step 3: Winding the high-voltage winding, firstly use the high-voltage magnet wire 2 itself to insulate and laminate the upper layer of r...

Embodiment 2

[0034] A method for enhancing the insulation and mechanical strength of high-voltage coils of amorphous alloy transformers. The method includes the following steps:

[0035] (1) Wrap the side ends of the transformer special copper tape on the outer layer of the low-voltage winding with diamond dispensing paper, and fix the diamond dispensing paper with glass fiber paper adhesive tape;

[0036] (2) Wrap the transformer special copper tape wrapped with rhombic dispensing paper on both ends of the side tightly on the insulating layer of rhombic dispensing paper, then fix the copper tape with a glass fiber paper adhesive tape, and then wrap it around the copper tape A layer of rhombus dispensing paper for interlayer insulation;

[0037] (3) The winding of the high-voltage winding is to insulate and laminate the high-voltage part of the magnet wire with the rhombic dispensing paper, and fix the magnet wire with the glass fiber paper adhesive tape;

[0038] (4) On the outer layer of the fir...

Embodiment 3

[0041] A method for enhancing the insulation and mechanical strength of high-voltage coils of amorphous alloy transformers. The method includes the following steps:

[0042] (1) Wrap the side ends of the transformer special copper tape on the outer layer of the low-voltage winding with diamond dispensing paper, and fix the diamond dispensing paper with glass fiber paper adhesive tape;

[0043] (2) Wrap the transformer special copper tape wrapped with rhombic dispensing paper on both ends of the side tightly on the insulating layer of rhombic dispensing paper, then fix the copper tape with a glass fiber paper adhesive tape, and then wrap it around the copper tape A layer of rhombus dispensing paper for interlayer insulation;

[0044] (3) The winding of the high-voltage winding is to insulate and laminate the high-voltage part of the magnet wire with the rhombic dispensing paper, and fix the magnet wire with the glass fiber paper adhesive tape;

[0045] (4) On the outer layer of the fir...

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Abstract

The invention relates to a method for enhancing the insulativity and mechanical strength of a high-tension coil of an amorphous alloy transformer, which comprises the following steps of: wrapping and fixing both ends of the lateral surface of a copper strip special for the transformer which is positioned on an outer layer of a low-tension winding by using rhombic lattice point gummed paper, winding the copper strip on an insulating layer of the rhombic lattice point gummed paper tightly, fixing the copper strip, and winding a layer of rhombic lattice point gummed paper outside the copper strip to perform layer insulation; performing coiling of a high-tension winding to press high-tension electromagnetic wires and the insulating layer of the rhombic lattice point gummed paper firmly, fixing the high-tension electromagnetic wires, and winding a layer of a widened insulating layer of the rhombic lattice point gummed paper on an outer layer of a first layer of high-tension electromagnetic wire; after continuing to wind a second layer of high-tension electromagnetic wire and a third layer of high-tension electromagnetic wire, turning over the widened part in the first layer of the insulating layer of the rhombic lattice point gummed paper along an end in an insulating mode, pressing and winding the widened part by a fourth layer of electromagnetic wire tightly, and fixing the rhombic lattice point gummed paper by using a glass fiber paper adhesive tape. Compared with the prior art, the method has the advantages of enhancing the insulativity and mechanical strength of the high-tension coil of the amorphous alloy transformer and the like.

Description

Technical field [0001] The invention relates to a transformer coil, in particular to a method for enhancing the insulation and mechanical strength of a high-voltage coil of an amorphous alloy transformer. Background technique [0002] Because the coils of amorphous alloy distribution transformers use the winding process of high-voltage coils winding low-voltage coils, there is a high potential difference between the high and low voltage coils during the operation of the transformer, which is prone to destructive results such as discharge and breakdown. [0003] In addition, since the entire coil is in a strong electric field during the operation of the transformer, under the action of electromotive force, the coil, especially the high-voltage coil with wire winding, is prone to loose deformation. Therefore, if there is no protective support at the end of the coil, the deformation and loosening of the coil, especially the high-voltage coil under the action of electromotive force, ma...

Claims

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Application Information

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IPC IPC(8): H01F27/32H01F41/12
Inventor 施冬杰
Owner SHANGHAI FLYING KING ELECTRIC
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