Processing Technology for Improving Oxidation Stability of Transformer Oil

Abstract

The invention relates to a processing technology for improving the oxidation stability of transformer oil, which is composed of 2,6-di-tert-butyl p-cresol, 2-(2'-hydroxyl-5'-methylphenyl)benzotriazepine azole, benzotriazole, and transformer base oil, the content of 2,6-di-tert-butyl-p-cresol is 0.1-1.5%; 2-(2'-hydroxy-5'-methylphenyl)benzene The content of triazole is 0.5‰-0.5%; the content of benzotriazole is 10-200PPm; the balance of transformer base oil (the above are weight percentages). The invention has simple processing, can greatly reduce production cost and improve work efficiency.

Description

Technical field: [0001] The invention relates to a transformer oil, in particular to a processing technology for improving the oxidation stability of the transformer oil. technical background: [0002] Transformer oil is mainly used for insulation and cooling in transformers, and it is required to have cooling and heat dissipation properties, solubility, electrical properties, low temperature performance and gas evolution performance, especially anti-aging and oxidation stability have become important indicators to distinguish the quality of transformer oil. Most of the existing transformer oils adopt the method of improving the refining process and adding antioxidants to ensure the important index of transformer oil oxidation stability. However, there is still a common problem that although the oxidation stability is qualified according to the national standard, the transformer oil will change color in a short time under the exposure of the eyes, and even appear turbid and ...

AI Technical Summary

Problems solved by technology

However, there is still a common problem that although the oxidation stability is qualified according to the national standard, the transformer oil will change color in a short time under the exposure of the eyes, and even appear turbid and precipitate. After testing, there are hydrogen, acetylene, etc. that cannot be contained in the transformer oil. Gas, this is because the base oil of transformer oil is generally refined by hydrogenation process, and the base oil after hydrogenation refinement undergoes a series of photo-oxidation and thermal oxidation condensation polymerization under the action of eyesight, ultraviolet light, magnetic field and heat energy Reaction, hydrogen, acetylene, methane, ethane, ethylene, carbon monoxide, carbon dioxide and other gases are released, and turbidity and precipitation appear, resulting in the abnormal operation of the transformer and affecting the reliability of the power grid