Thermal conductive transformer oil containing nanometer aluminum oxide

A nano-alumina and transformer oil technology, applied in the field of transformer oil, can solve the problems of poor thermal conductivity and poor oxidation resistance, and achieve the effects of good dispersion stability, low preparation cost and good electrical insulation performance.

Active Publication Date: 2014-07-30
JIANGSU HUASHENG ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transformer oil solves the problems of poor thermal conductivity and poor oxidation resistance of transformer oil prepared from vegetable oil. By introducing linear alkanes obtained through d

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 0.05 parts of modified nano-alumina to 70 parts of refined vegetable oil, then add 30 parts of linear alkanes, ultrasonically disperse for 2 hours, add 0.3 parts of 2,6-di-tert-butylphenol and 0.2 parts of tea polyphenols for antioxidant agent, 0.5 parts of benzotriazole, and then undergo ultrasonic dispersion treatment for 1 hour to obtain the transformer oil product.

Embodiment 2

[0027] Add 0.05 parts of nano-alumina to 60 parts of refined vegetable oil, then add 40 parts of linear alkanes, ultrasonically disperse for 2 hours, add 0.3 parts of 2,6-di-tert-butylphenol and 0.2 parts of alkylbenzene-α-naphthylamine Antioxidant, 0.5 part of benzotriazole, 0.1 part of thiadiazole, and then undergo ultrasonic dispersion treatment for 1 hour to obtain a transformer oil product.

[0028] Transformer oil main performance index prepared by the present invention

[0029] project

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PUM

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Abstract

The invention relates to transformer oil. The transformer oil comprises base oil and 0.01-0.05wt% of modified nanometer aluminum oxide measured on the basis of the base oil. The base oil comprises 60-70wt% of refined vegetable oil and 30-40wt% of straight-chain alkanes, wherein the straight-chain alkanes are obtained by deep hydrogenation of the vegetable oil. The transformer oil disclosed by the invention solves the problems of worse thermal conductivity and poor oxidation resistance of transformer oil prepared from vegetable oil. By introducing straight-chain alkanes obtained by deep hydrogenation of vegetable oil, the nanometer materials in the transformer oil disclosed by the invention have better dispersion stability and the oxidation resistance of the transformer oil is also further improved.

Description

technical field [0001] The invention relates to the technical field of transformer oil, in particular to a transformer oil containing nanometer materials and vegetable oil. Background technique [0002] Transformers can be divided into dry-type transformers, oil-immersed transformers and gas-filled transformers according to the insulation method. The oil-immersed transformer has a compact structure and good cooling effect. Under similar functional conditions, the product investment is lower and the performance is more reliable. Transformer oil has two functions, one is to insulate between the transformer windings, and between the windings and the iron core and the oil tank, and the other is to generate convection when heated, thereby cooling the transformer iron core and windings. [0003] The thermal conductivity of traditional transformer oil is small. In order to meet the heat dissipation requirements, a large heat dissipation space is required, which is not conducive to...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M125/10C10N40/16C10N30/04
Inventor 许唯张守国葛玉华
Owner JIANGSU HUASHENG ELECTRICAL CO LTD
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