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Transformer oil not prone to yellowing

A transformer oil, a technology that is not easy to apply in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of low thermal conductivity, etc., and achieve the effects of improving stability, improving easy oxidation, and improving long-term stability

Inactive Publication Date: 2016-02-03
TONGLING SANJIA TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal conductivity of traditional transformer oil is small, which cannot meet the higher and higher heat dissipation requirements. Secondly, the higher and higher voltage levels and miniaturization require that the insulating medium must have higher dielectric strength. Based on this, in order to adapt to the transformer With the development direction of large capacity, ultra-high voltage level and miniaturization, it is imminent to improve the insulation characteristics of traditional transformer oil for long-term operation, and it is imminent to study transformer oil with higher insulation performance and better thermal aging characteristics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A non-yellowing transformer oil made from the following raw materials in parts by weight (kg): 4 zinc acetylacetonate, 0.7 oleic acid, 20 ethanol, 2 polyimide, 0.2 ethylenediamine, and silane coupling agent KH5700. 4. Transformer base oil 1000, polyethyleneimine 2, lauryl selenium 0.5, aluminum nitride 3, cobalt oxide 2, silicon dioxide 3, stearic acid 0.3, sodium tripolyphosphate 0.2.

[0013] Described a kind of non-yellowing transformer oil is prepared by following specific steps:

[0014] (1) Add aluminum nitride, cobalt oxide and silicon dioxide to a ball mill and mix them evenly, then add stearic acid and continue ball milling for 0.5h, mix and stir zinc acetylacetonate, ethanol and oleic acid, ultrasonically until the solution is clear, and then Add the mixed powder prepared above and then conduct a hydrothermal reaction at 160°C for 20 hours, and dehydrate and dry the precipitate for later use;

[0015] (2) Heat the polyimide until it melts, then add ethylenedi...

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PUM

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Abstract

The invention discloses transformer oil not prone to yellowing. The transformer oil is prepared from, by weight, 4-5 parts of zinc acetylacetonate, 0.7-1 part of oleic acid, 20-24 parts of ethyl alcohol, 2-3 parts of polyimide, 0.2-0.4 part of ethylene diamine, 0.4-0.6 part of silane coupling agent KH570, 1000-1100 parts of transformer base oil, 2-3 parts of polyethyleneimine, 0.5-0.6 part of dodecyl selenium, 3-4 parts of aluminum nitride, 2-3 parts of cobalt oxide, 3-4 parts of silicon dioxide, 0.3-0.4 part of stearic acid and 0.2-0.5 part of sodium tripolyphosphate.

Description

technical field [0001] The invention relates to the technical field of industrial lubricating oils, in particular to a transformer oil not easily yellowed. Background technique [0002] In recent years, power accidents at home and abroad have made people realize that the safety of the power system involves the safety of the entire social and economic life. In the process of power transmission and transformation in the power system, the transformer, as the link of power transmission, is one of the most important and critical equipment in the power equipment, and its safe and stable operation is related to the stable operation of the entire power grid. Once a serious accident occurs to the transformer running in the system, it will not only cause the destruction of the equipment itself, but also interrupt the power supply of the power grid, which will have a huge impact on the production and life of the society. Especially as the voltage level of the power system becomes high...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M161/00C10M177/00C10N40/16
Inventor 李新满
Owner TONGLING SANJIA TRANSFORMER
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