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Non-deformable dimension high-stability insulation paper for transformer

A dimensional stability, transformer technology, applied in the field of transformers, to achieve the effect of improving flame retardancy, simple preparation method, and improving weather resistance

Inactive Publication Date: 2016-02-17
TONGLING SANJIA TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using mica to modify insulating paper can obtain insulating paper with better performance, but there are few researches on this aspect at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An insulating paper for transformers that is not easily deformed and has high dimensional stability, prepared from the following raw materials in parts by weight (kg): silane coupling agent kh5500.6, mica 6, glycine 1, silane coupling agent kh5700.3, emulsifying Agent OP, sodium dodecyl sulfonate 0.2, E44 epoxy resin 2, polyacrylamide 0.5, pulp board 500, polyacrylate 0.6, antimony sulfide 0.7, bone meal 1.2, deionized water amount.

[0014] The insulating paper for a transformer that is not easily deformed and has high dimensional stability is prepared by the following specific steps:

[0015] (1) Add the silane coupling agent kh550 into the solution with a mass ratio of ethanol to water of 1:1, heat it in a water bath to 35°C, add dropwise oxalic acid to adjust the pH value to 4, hydrolyze for 1 hour, and dip the mica sheet into Stir and soak in 75% ethanol for 1 h, then ultrasonically wash for 10 min, soak in deionized water for 0.5 h, and finally place in an oven to...

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PUM

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Abstract

The invention discloses non-deformable dimension high-stability insulation paper for a transformer. The insulation paper is prepared by use of the following raw materials in parts by weight: 0.6-0.7 part of a silane coupling agent kh550, 6-8 parts of mica, 1-1.5 parts of glycine, 0.3-0.4 part of a silane coupling agent kh570, 0.1-0.2 part of an emulsifier OP-10, 0.2-0.3 part of sodium dodecanesulphonate, 2-3 parts of an E44 epoxy resin, 0.5-0.6 part of polyacrylamide, 500-550 parts of a pulpboard, 0.6-0.8 part of polyacrylate, 0.7-0.9 part of antimony sulfide, 1.2-1.5 parts of bone meal and a proper amount of deionized water. The preparation method provided by the invention is simple, the process is simple and controllable, the product dimension stability is high, deformation is not easily generated, and the insulation paper is worth popularization.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to insulating paper for transformers that is not easily deformed and has high dimensional stability. Background technique [0002] In recent years, with the rapid development of my country's electric power, electrical, electronics, home appliances and communications industries, people have higher and higher requirements for transformers. Cellulose insulating paper is one of the most widely used internal insulating materials in oil-immersed power transformers. Since it cannot be replaced during operation, its mechanical and insulating properties directly determine the service life of the transformer. In the actual transformer, the insulating paper is subjected to high-intensity electric field stress for a long time, and once a breakdown occurs, the transformer will fail. If the electrical performance of insulating paper can be improved, the usage of insulating paper can be save...

Claims

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Application Information

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IPC IPC(8): H01B3/52H01B19/00H01F27/32
Inventor 李新满
Owner TONGLING SANJIA TRANSFORMER