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Interrelation of surface tension, optical turbidity, and color of operational transformer oils

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Power Technology and Engineering Aims and scope

Measurements of the acidity, optical turbidity, surface tension, and color of transformer oil from 54 power transformers, autotransformers, and shunt reactors are reported. Changes in surface tension, optical turbidity, and color are found to obey adequate linear correlations, while the acidity has no correlation with any of these properties. Numerical criteria for the maximum permissible state (quality) of the oil with respect to optical turbidity and color are obtained. Recommendations to operating staff are provided for cases in which the criteria for optical turbidity and color are exceeded.

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Translated from Élektricheskie Stantsii, No. 4, April 2011, pp. 51 – 56.

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L’vov, S.Y., Lyut’ko, E.O., Lankau, Y.V. et al. Interrelation of surface tension, optical turbidity, and color of operational transformer oils. Power Technol Eng 45, 240–244 (2011). https://doi.org/10.1007/s10749-011-0256-y

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  • DOI: https://doi.org/10.1007/s10749-011-0256-y

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