A new technique to measure interfacial tension of transformer oil using UV-Vis spectroscopy

Abu Bakar, Norazhar (2015) A new technique to measure interfacial tension of transformer oil using UV-Vis spectroscopy. Dielectrics and Electrical Insulation, IEEE Transactions on, 22 (2). pp. 1275-1282. ISSN 1070-9878

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Abstract

Interfacial tension (IFT) and acid numbers of insulating oil are correlated with the number of years that a transformer has been in service and are used as a signal for transformer oil reclamation. Oil sampling for IFT measurement calls for extra precautions due to its high sensitivity to various oil parameters and environmental conditions. The current used technique to measure IFT of transformer oil is relatively expensive, requires an expert to conduct the test and it takes long time since the extraction of oil sample, sending it to external laboratory and getting the results back. This paper introduces a new technique to estimate the IFT of transformer oil using ultraviolet-to-visible (UV-Vis) spectroscopy. UV-Vis spectral response of transformer oil can be measured instantly with relatively cheap equipment, does not need an expert person to conduct the test and has the potential to be implemented online. Results show that there is a good correlation between oil spectral response and its IFT value. Artificial neural network (ANN) approach is proposed to model this correlation.

Item Type:	Article
Uncontrolled Keywords:	artificial neural network, interfacial tension, transformer insulation oil, UV-Vis spectroscopy
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electrical Engineering > Department of Control, Instrumentation & Automation
Depositing User:	IR Norazhar Abu Bakar
Date Deposited:	06 Jul 2015 07:18
Last Modified:	06 Jul 2015 07:18
URI:	http://eprints.utem.edu.my/id/eprint/14641
Statistic Details:	View Download Statistic

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