Comparative Study on the Impurities Content of Hydrogenated Transformer Oil under Static Condition

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Abstract:

The impurities content of domestic hydrogenated transformer oil and three kinds of naphthenic transformer oil had been determined by using the specified experimental methods. A series of experimental data had been obtained, including mechanical impurities, particulate contamination, corrosive sulfur, sulfur content, total acidity and interfacial tension. The impurities content of four kinds of transformer oil were compared with the quality indicators of transformer oil on GB/T7595-2008. The results showed that the impurities content of the former was not so satisfying although it had excellent electrical properties and the technology needed to be improved.

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129-135

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December 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Z.H. Sheng: Hydrogenated transformer oil. Synthetic lubricants. Vol.35 (2008), pp.8-11 (In Chinese).

Google Scholar

[2] Y. Zhang and J.F. Zhang: Evaluation of Antioxidative Property of Hydrogenated Transformer Oil and Naphthenic Transformer Oil. Synthetic lubricants. Vol. 37 (2010), pp.10-12 (In Chinese).

Google Scholar

[3] Q.H. Hu, B. Yang and J.F. Wang: Oil quality testing item that should not be overlooked in the 500 kV oil-filled equipment. Modern Science. (2009), p.63 (In Chinese).

Google Scholar

[4] R. Li, S.A. Chao, Y.H. Qian and K. Sheng: Research on Present Situation of Corrosive Sulfur in Transformer Oil. Transformer. Vol. 46(2009), pp.19-22 (In Chinese).

Google Scholar

[5] GB7595-2008, "Quality of transformer oils in service". National standard of China.

Google Scholar

[6] GB/T 511-2010, "Petroleum products and additives-Determination of mechanical impurities-Gravimetric method". National standard of China.

Google Scholar

[7] DL/T 432-2007. "Determination of particulate contamination in oil". Electric Power Industry Standard of China

Google Scholar

[8] ASTM D1275 B-2006." Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils".

Google Scholar

[9] GB/T 17040-2008, "Petroletm products-Determination of sulfur-Energy dispersive X-ray fluorescence spectroscopy". National standard of China.

Google Scholar

[10] GB/T 264-83, "Petroleum products-Determination of acid number". National standard of China.

Google Scholar

[11] GB/T 6541-86, "Petroleum products-mineral oils-Deterimination of interfacial tension of oil against water-Ring method". National standard of China.

Google Scholar

[12] J. Qi: Discussion on insulation strength affected by granularity in power transformer oil. Anhui Electric Power. Vol. 21 (2004), pp.31-32 (In Chinese).

Google Scholar

[13] B.j. Xia: Influence and Prevention of Impurity Particles in Power Oil. Power System Engineering. Vol. 21(2005), pp.37-38 (In Chinese).

Google Scholar

[14] Y.P. Lin, Z. Li, X.P. Liu and Y.H. Qian: Situation and Analysis of Oil Quality Investigation of Main Transformer in Guangdong Province. Transformer. Vol. 42 (2005), pp.40-42 (In Chinese).

Google Scholar

[15] Y.H. Qian, W.J. Yao and Y.Y. Zhou: Research on Corrosive Sulfur in Transformer Oil. Guangdong electric power. Vol. 20 (2007), pp.38-40 (In Chinese).

Google Scholar