Application of Ultrahigh Voltage Transformer Oil Purification Software Technology

Abstract

In order to discuss the purification software technology of ultrahigh voltage transformer oil, the index variation trend of antioxidation stability test after each oil adsorption was investigated, and the relationship between the adsorption times and antioxidation stability parameters was obtained. It was proved that the antioxidation stability of the oil was getting better and better with the increase of adsorption times. The composition of hydrocarbon of new oil and recycled oil is analyzed by infrared spectroscopy. The composition of hydrocarbon of new oil and recycled oil is very similar to that of new oil, and their molecular composition structure has not changed much. The experimental results show that: according to dLT929-2005, the absorbance of samples at 1610∼720 cm−1 was measured, and the values of $C_A$ , $C_N$ and $C_P$ were obtained. A 1 mmNaCl liquid pool is used. Sample ① is the new oil; ② is the last simulated oil regeneration; ③ is the D111 overhaul recycled oil; ④ is again the living oil. It is proved that the composition of the oil is more reasonable and can be reused for adsorption and regeneration. In addition, the aromatic carbon value $C_A$ of oil after adsorption treatment decreases due to natural consumption, and new oil can be added appropriately to increase the carbon value $C_A$ .