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Effects of Transformer Oil Properties and Contamination on Its Spectral Response

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Authors
Abu Bakar, Norazhar
Abu-Siada, Ahmed
Islam, Syed
El-Naggar, M.
Date
2014
Type
Conference Paper

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Citation
Abu Bakar, N. and Abu-Siada, A. and Islam, S. and El-Naggar, M. 2014. Effects of Transformer Oil Properties and Contamination on Its Spectral Response, in International Conference on Condition Monitoring and Diagnosis, CMD 2014, Sep 21 2014. Jeju, Korea: CMD 2014.
Source Title
CMD 2014 flash memory
Source Conference
International Conference on Condition Monitoring and Diagnosis, CMD 2014
School
Department of Electrical and Computer Engineering
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Abstract

UV Spectrophotometry is a non-intrusive test that can be employed to determine power transformer’s integrity. Light transmitted through transformer oil sample containing various contaminations is decreased by that fraction being absorbed and is detected as a function of wavelength. This paper investigates the impact of various contaminations and oil properties such as water content, acidity, interfacial tension and average voltage breakdown on the spectral response of the transformer oil. In this regard, various transformer oil samples are collected from in-service transformers and the aforementioned parameters are measured. Same oil samples are scanned with UV-Vis spectroscopic and the spectral responses are obtained and analysed.