Modified high ignition point transformer oil and preparation method thereof

Abstract

The invention discloses a modified high ignition point transformer oil and a preparation method thereof. The modified high ignition point transformer oil is mainly composed of mineral insulating oil, modified nano-magnesium hydroxide / nano-aluminum hydroxide composite flame retardant and toluene diphenyl phosphate Composed of ester, the modified nano-magnesium hydroxide / nano-aluminum hydroxide composite flame retardant is mainly prepared by modifying nano-magnesium hydroxide and nano-aluminum hydroxide through oleic acid. The preparation method includes (1) preparing a modified nano-magnesium hydroxide / nano-aluminum hydroxide composite flame retardant, (2) adding the composite flame retardant, and (3) adding toluene diphenyl phosphate. The modified high ignition point transformer oil of the present invention not only has the characteristics of excellent heat dissipation performance, insulation performance and low price of mineral insulating oil, but also has the characteristics of high fire resistance and fire prevention performance, and can be replaced without any modification to the existing transformer The original conventional low ignition point mineral insulating oil can be widely used and promoted, and has important practical significance and commercial value.

Description

technical field [0001] The invention belongs to the technical field of insulating oil, and relates to a modified high ignition point transformer oil and a preparation method thereof, in particular to a nano flame retardant modified high ignition point transformer oil and a preparation method thereof. Background technique [0002] At present, transformers are basically oil-immersed transformers, and the most widely used transformer oil is mineral insulating oil, because mineral insulating oil has the advantages of excellent electrical insulation, cooling performance and low cost. However, due to the low ignition point of mineral insulating oil, the transformer is prone to fire when a serious failure occurs, and the probability of fire is 5% to 15%. Therefore, it is urgent to develop high ignition point transformer oil to solve the above problems. [0003] In order to solve the above problems, some scholars have successively developed insulating oil, silicone oil, synthetic e...

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Problems solved by technology

[0003] In order to solve the above problems, some scholars have successively developed polychlorinated biphenyl (PCB)-based insulating oil, silicone oil, synthetic ester (pentaerythritol ester), alpha oil, beta oil, polyalphaolefin, HMWH oil (polymer carbon Hydrogenated oil), vegetable insulating oil and other non-flammable or non-fuel products, but because these insulating oils either cannot meet the requirements of cooling performance, insulation performance and oxidation resistance, etc., or are high in cost, and need to be used at present. Transformation of mineral insulating oil transformers, otherwise there is a great risk, so it is impossible to form a wide range of applications