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Diarylane insulating oil

A technology of diarylalkane and insulating oil, which is applied in the field of high voltage polypropylene full-film dielectric power capacitors and diarylalkane insulating oil field, can solve the problem of low aromaticity of insulating oil, composition of aromatic groups and aliphatic groups Unreasonable, high oil viscosity and other problems, to achieve the effect of improving aromaticity, simple synthesis method and low production cost

Inactive Publication Date: 2009-07-15
西安电力电容器研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the technical problems of unreasonable composition of aromatic groups and aliphatic groups in each component of insulating oil in the background technology, low aromaticity of insulating oil and high viscosity of oil at low temperature

Method used

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  • Diarylane insulating oil
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Examples

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Embodiment approach 1

[0025] By weight percentage, the component of embodiment one of the present invention is:

[0026] Main ingredients: 80% to 100% of phenylxylylmethane, 0% to 20% of one of diphenylethane, phenyltolylethane, monobenzyltoluene, diphenylmethane or any combination thereof.

[0027] An epoxy stabilizer is also added to the above main components, and the weight percentage of the main component and the epoxy stabilizer is 100:0.5-1.

[0028] By weight percentage, the specific example of embodiment one of the present invention is as follows:

example 1      example 2    example 3

[0030] Phenylxylylmethane 100 90 80

[0031] Monobenzyltoluene 0 10 20

[0032] Other components 0 0 0

[0033] An epoxy stabilizer is also added to the main components of the above examples 1-3, and the weight percentage of the main component to the epoxy stabilizer is 100:0.5.

Embodiment approach 2

[0035] By weight percentage, the component of embodiment two of the present invention is:

[0036] 80-100% of diphenylethane, 0-20% of one of phenylxylylmethane, phenyltolylethane, monobenzyltoluene, diphenylmethane or any combination thereof.

[0037] An epoxy stabilizer is also added to the above main components, and the weight percentage of the main component and the epoxy stabilizer is 100:0.5-1.

[0038] By weight percentage, the specific examples of embodiment two of the present invention are as follows:

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Abstract

A diaryl alkane isolating oil, the molecule structure formula of it is I, the R1, R2 and R3 represents H or CH3 separately. This isolating oil can be as the immersion oil of some condenser, and it can be as the immersion of paper mediator, paper membrane complex mediator and whole membrane mediator. It especially is suitable to the immersion of high pressure whole polypropylene membrane. The aromatic and fat element of this invention are optimizing combination, and this improves the aroma of the isolating oil further and decreases the viscosity of the isolating oil at low temperature, so the electric field resistance of the isolating oil during the whole usage processes is stable. It can be applied to the higher intensity of working electric field.

Description

technical field [0001] The invention relates to an impregnating agent for a capacitor insulating medium, in particular to a diaryl alkane insulating oil, which is mainly used as an impregnating agent for a high-voltage polypropylene full-film dielectric power capacitor. Background technique [0002] At present, the impregnants for high-voltage full-film power capacitors mainly use the following types: [0003] One is diarylethane, such as phenylxylylethane (PXE), phenylethylphenylethane (PEPE), etc. Because phenylxylylethane and phenylethylphenylethane have good insulating properties and good compatibility with polypropylene film, they have been widely used in the power capacitor manufacturing industry. However, its electrical aging performance in the high and low temperature range is poor, and the working electric field strength it bears is low. [0004] The other is monobenzyltoluene and dibenzyltoluene (M / DBT) blended oil. Although its performance is improved compared t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M115/02C10N40/16
CPCH01G4/221
Inventor 郭天兴陈温良吴俊丽
Owner 西安电力电容器研究所
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