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High-strength high-elasticity insulation paper used for transformer

A transformer, high-strength technology, applied in the field of transformers, to achieve the effect of simple equipment, good strength, and low raw material prices

Inactive Publication Date: 2016-02-24
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 with high strength and good elasticity, 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, emulsifier OP , Sodium dodecyl sulfonate 0.2, E44 epoxy resin 2, Sodium lignosulfonate 0.4, Pulp board 500, Ultrafine molybdenum powder 0.5, Asbestos wool 2.2, Nitrile rubber powder 2.1, Nano polystyrene 0.7, Go Appropriate amount of ionized water.

[0014] The insulating paper for a transformer with high strength and good elasticity 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 pla...

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PUM

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Abstract

The invention discloses high-strength high-elasticity insulation paper used for a transformer. The insulation paper is prepared from the following raw materials in parts by weight: 0.6-0.7 part of silane coupling agent kh550, 6-8 parts of mica, 1-1.5 parts of glycine, 0.3-0.4 part of silane coupling agent kh570, 0.1-0.2 part of emulsifier OP-10, 0.2-0.3 part of sodium dodecyl sulfate, 2-3 parts of E44 epoxy resin, 0.4-0.6 part of sodium lignin sulfonate, 500-550 parts of pulp boards, 0.5-0.6 part of ultrafine molybdenum powder, 2.2-2.9 parts of asbestos wool, 2.1-2.4 parts of nitrile rubber powder, 0.7-0.9 part of nano polystyrene, and a proper amount of deionized water. The prepared insulation paper has the advantages that the adopt equipment is simple, the raw material price is low, the operability is good, the insulation paper is suitable for mass production, the prepared insulation paper has the performances of high strength, high elasticity, tensile strength, corrosion resistance, flame retardance and the like, is long in service life, and is worthy of promotion.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to insulating paper for transformers with high strength and good elasticity. 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 saved, the working life of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/52H01B19/00H01F27/32
Inventor 李新满
Owner TONGLING SANJIA TRANSFORMER
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