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UV-vis spectroscopy: A new approach for assessing the color index of transformer insulating oil

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dc.citedby29
dc.contributor.authorLeong Y.S.en_US
dc.contributor.authorKer P.J.en_US
dc.contributor.authorJamaludin M.Z.en_US
dc.contributor.authorNomanbhay S.M.en_US
dc.contributor.authorIsmail A.en_US
dc.contributor.authorAbdullah F.en_US
dc.contributor.authorLooe H.M.en_US
dc.contributor.authorLo C.K.en_US
dc.contributor.authorid57202929965en_US
dc.contributor.authorid37461740800en_US
dc.contributor.authorid57216839721en_US
dc.contributor.authorid22135844300en_US
dc.contributor.authorid36023817800en_US
dc.contributor.authorid56613644500en_US
dc.contributor.authorid6507460925en_US
dc.contributor.authorid36721595300en_US
dc.date.accessioned2023-05-29T06:51:35Z
dc.date.available2023-05-29T06:51:35Z
dc.date.issued2018
dc.descriptionColor; Errors; Health risks; Insulating oil; Mean square error; Power transformers; Preventive maintenance; Risk assessment; Safety engineering; Ultraviolet visible spectroscopy; Area under the curves; Cutoff wavelengths; Good correlations; Oil insulations; Optimal performance; Root mean square errors; Safety and healths; UV-vis spectroscopy; Oil filled transformers; area under the curve; article; human; ultraviolet visible spectroscopyen_US
dc.description.abstractMonitoring the condition of transformer oil is considered to be one of the preventive maintenance measures and it is very critical in ensuring the safety as well as optimal performance of the equipment. Various oil properties and contents in oil can be monitored such as acidity, furanic compounds and color. The current method is used to determine the color index (CI) of transformer oil produces an error of 0.5 in measurement, has high risk of human handling error, additional expense such as sampling and transportations, and limited samples can be measured per day due to safety and health reasons. Therefore, this work proposes the determination of CI of transformer oil using ultraviolet-to-visible (UV-Vis) spectroscopy. Results show a good correlation between the CI of transformer oil and the absorbance spectral responses of oils from 300 nm to 700 nm. Modeled equations were developed to relate the CI of the oil with the cutoff wavelength and absorbance, and with the area under the curve from 360 nm to 600 nm. These equations were verified with another set of oil samples. The equation that describes the relationship between cutoff wavelength, absorbance and CI of the oil shows higher accuracy with root mean square error (RMSE) of 0.1961. � 2018 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo2175
dc.identifier.doi10.3390/s18072175
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85049840964
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85049840964&doi=10.3390%2fs18072175&partnerID=40&md5=2dfda880d100f2fc73c621fdb1c2ee39
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/23758
dc.identifier.volume18
dc.publisherMDPI AGen_US
dc.relation.ispartofAll Open Access, Gold, Green
dc.sourceScopus
dc.sourcetitleSensors (Switzerland)
dc.titleUV-vis spectroscopy: A new approach for assessing the color index of transformer insulating oilen_US
dc.typeArticleen_US
dspace.entity.typePublication
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