Improving the Quality Index of Insulating Oil in Transformers by Applying the Dehumidification Process

AUTHOR(S):

Maria-Cristina Nițu, Ancuța-Mihaela Aciu, Dan Ștefan, Paul Mihai Mircea

TITLE

Improving the Quality Index of Insulating Oil in Transformers by Applying the Dehumidification Process

ABSTRACT

The maintenance solutions applied to power transformers have been and are a current concern of major importance in extending the operating life but also in protecting the environment. This paper highlights the importance of the treatment/revitalization processes of used insulating oils, which aim to bring them within the parameters imposed by the standards, extend the life of the mixed insulation system and reduce the amount of oil considered waste. The paper presents the influence of humidity in the deterioration of the mixed insulation system of the power transformer and the effects of the treatment/revitalization process that lead to the improvement of the oil quality index.

KEYWORDS

used oil, quality index, power transformer, revitalization, maintenance

Cite this paper

Maria-Cristina Nițu, Ancuța-Mihaela Aciu, Dan Ștefan, Paul Mihai Mircea. (2025) Improving the Quality Index of Insulating Oil in Transformers by Applying the Dehumidification Process. International Journal of Environmental Science, 10, 20-27