Method for lapping insulated paper tapes for transformers

A technology for transformers and paper tapes, applied in the direction of coil manufacturing, etc., can solve the problems of difficult quantitative control of soaking, inconsistent paper tape bearing capacity, low toughness of insulating paper tapes, etc., to achieve guaranteed insulation performance, smooth wrapping, and uniform infiltration. consistent effect

Inactive Publication Date: 2013-12-18
JIANGSU JURONG UNITED COPPER MATERIAL
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Due to the low moisture content required by the process, the insulating paper tape is dry and brittle, with low toughness. It is easy to break when producing transposed wires and paper-wrapped winding wires. Paper splicing, more precise requirements for production equipment
In order to overcome these shortcomings, it is necessary to immerse the entire insulating paper tape in a pure water bucket for ten minutes, tear off and discard the ten layers of paper tape with excessive surface infiltration (about 15 meters), and the waste is large. The degree of infiltration of each paper tray is different, and even the degree of infiltration of different parts of a single whole paper tape is different, resulting in inconsistent bearing capacity of the paper tape, and places with more water content are easier to tear, making production control difficult.

Method used

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  • Method for lapping insulated paper tapes for transformers

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Embodiment Construction

[0013] A method for wrapping an insulating paper tape for a transformer, the steps of the method are as follows:

[0014] A spray wet paper device is installed on the paper winding production line, and the spray wet paper device is set behind the paper rack for the insulating paper tape and in front of the winding equipment; for the spray wet paper device, see figure 1 , the device includes a spray wet paper device including a casing 4, a heating atomization spraying device 1 and a humidity detection control device 2, the heating atomization spraying device 1 is arranged in the casing 4, and the heating atomization spraying device 1 is controlled by a power switch 3 Connect with the humidity detection control device 2. The humidity detection control device detects the air humidity in the casing and compares it with the set humidity parameter, and controls the heating atomization spray device through a power switch. The humidity parameter set by the humidity detection control ...

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Abstract

The invention discloses a method for lapping insulated paper tapes for transformers. The method includes arranging a spray wetting device on a paper lapped winding production line and particularly at the back of an insulated paper tape holder and in front of winding equipment, and feeding the insulated paper tapes into the winding equipment through the spray wetting device so as to complete lapping. The insulated paper tapes are wetted uniformly by means of air humidity control, so that wastes are avoided. As the insulated paper tapes are wetted uniformly, bearing capacity thereof is uniform and production efficiency is improved. The toughness of the paper tapes is improved and is uniform, so that the insulated paper tapes can be lapped evenly and fitly and are not easy to be broken during production, labor intensity is reduced, and insulating property of products is good.

Description

technical field [0001] The invention relates to a winding method of an insulating paper tape, in particular to a winding method of an insulating paper tape for a transformer. Background technique [0002] The transposed conductors and paper-wrapped winding wires used in transformer coils are made of bare copper flat wires or enamelled flat wires wrapped with insulating paper tapes. The insulation performance of the coils is closely related to the correct use of insulating paper. [0003] Due to the low moisture content required by the process, the insulating paper tape is dry and brittle, with low toughness. It is easy to break when producing transposed wires and paper-wrapped winding wires. Paper splicing requires more precise production equipment. In order to overcome these shortcomings, it is necessary to immerse the entire insulating paper tape in a pure water bucket for ten minutes, tear off and discard the ten layers of paper tape with excessive surface infiltration (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/12
Inventor 刘松
Owner JIANGSU JURONG UNITED COPPER MATERIAL
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