Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy

Leong Yang Sing, Pin Jern Ker, Md Zaini Jamaludin, Aiman Ismail, Fairuz Abdullah, Looe Hui Mun, C. Nuru Saniyyat, M. Shukri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Monitoring and inspection of inhibitor content in transformer insulating oil has been a routine test for power utilities. Although new uninhibited transformer insulating oil contains naturally occurring inhibitors, these inhibitors could deplete over time during operation. Once the inhibitor depleted completely, the oil would start to deteriorate at a faster rate and eventually could lead to faults in transformer. The common method of determining the weight percentage of inhibitor in transformer oil is through Fourier Transform Infrared (FTIR) spectroscopy. However, this method is laboratory-based, which means oil sampling at site is necessary and the oil samples need to be transported to the laboratory. The necessity for oil sampling, coupled with the high cost of FTIR equipment have led to high maintenance cost. Therefore, this work investigated the possibility of using single wavelength or waveband optical detection for the determination of weight percentage of inhibitor in transformer oil using ultraviolet-visible-near infrared (UV-VIS-NIR) spectroscopy. Result of the work shows that the samples with inhibitor produced an absorbance peak at 1403nm. The peak absorbance of the spectral response is proportional to the weight percentage of inhibitor content that was measured using the conventional method, which is IEC 60666. An equation was derived to model the peak absorbance and weight percent of inhibitor content (%IC) of the oil and it was verified with additional oil sample with a known weight percent of Inhibitor content.

Original languageEnglish
Title of host publicationProceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages179-183
Number of pages5
ISBN (Electronic)9781509011780
DOIs
Publication statusPublished - 05 Apr 2017
Event6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016 - Batu Ferringhi, Penang, Malaysia
Duration: 25 Nov 201627 Nov 2016

Publication series

NameProceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016

Other

Other6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016
CountryMalaysia
CityBatu Ferringhi, Penang
Period25/11/1627/11/16

Fingerprint

Insulating oil
Transformer
Ultraviolet spectroscopy
Inhibitor
Spectroscopy
Percentage
Sampling
Near infrared spectroscopy
Percent
Fourier transform
Fourier transform infrared spectroscopy
Oils
Costs
Fourier transforms
Near-infrared Spectroscopy
Inspection
Spectral Response
Infrared Spectroscopy
Infrared radiation
Wavelength

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Computer Science Applications
  • Control and Systems Engineering
  • Mechanical Engineering
  • Control and Optimization

Cite this

Sing, L. Y., Ker, P. J., Jamaludin, M. Z., Ismail, A., Abdullah, F., Mun, L. H., ... Shukri, M. (2017). Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy. In Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016 (pp. 179-183). [7893567] (Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCSCE.2016.7893567
Sing, Leong Yang ; Ker, Pin Jern ; Jamaludin, Md Zaini ; Ismail, Aiman ; Abdullah, Fairuz ; Mun, Looe Hui ; Saniyyat, C. Nuru ; Shukri, M. / Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy. Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 179-183 (Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016).
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abstract = "Monitoring and inspection of inhibitor content in transformer insulating oil has been a routine test for power utilities. Although new uninhibited transformer insulating oil contains naturally occurring inhibitors, these inhibitors could deplete over time during operation. Once the inhibitor depleted completely, the oil would start to deteriorate at a faster rate and eventually could lead to faults in transformer. The common method of determining the weight percentage of inhibitor in transformer oil is through Fourier Transform Infrared (FTIR) spectroscopy. However, this method is laboratory-based, which means oil sampling at site is necessary and the oil samples need to be transported to the laboratory. The necessity for oil sampling, coupled with the high cost of FTIR equipment have led to high maintenance cost. Therefore, this work investigated the possibility of using single wavelength or waveband optical detection for the determination of weight percentage of inhibitor in transformer oil using ultraviolet-visible-near infrared (UV-VIS-NIR) spectroscopy. Result of the work shows that the samples with inhibitor produced an absorbance peak at 1403nm. The peak absorbance of the spectral response is proportional to the weight percentage of inhibitor content that was measured using the conventional method, which is IEC 60666. An equation was derived to model the peak absorbance and weight percent of inhibitor content ({\%}IC) of the oil and it was verified with additional oil sample with a known weight percent of Inhibitor content.",
author = "Sing, {Leong Yang} and Ker, {Pin Jern} and Jamaludin, {Md Zaini} and Aiman Ismail and Fairuz Abdullah and Mun, {Looe Hui} and Saniyyat, {C. Nuru} and M. Shukri",
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Sing, LY, Ker, PJ, Jamaludin, MZ, Ismail, A, Abdullah, F, Mun, LH, Saniyyat, CN & Shukri, M 2017, Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy. in Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016., 7893567, Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016, Institute of Electrical and Electronics Engineers Inc., pp. 179-183, 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016, Batu Ferringhi, Penang, Malaysia, 25/11/16. https://doi.org/10.1109/ICCSCE.2016.7893567

Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy. / Sing, Leong Yang; Ker, Pin Jern; Jamaludin, Md Zaini; Ismail, Aiman; Abdullah, Fairuz; Mun, Looe Hui; Saniyyat, C. Nuru; Shukri, M.

Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016. Institute of Electrical and Electronics Engineers Inc., 2017. p. 179-183 7893567 (Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy

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AU - Ker, Pin Jern

AU - Jamaludin, Md Zaini

AU - Ismail, Aiman

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AU - Mun, Looe Hui

AU - Saniyyat, C. Nuru

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N2 - Monitoring and inspection of inhibitor content in transformer insulating oil has been a routine test for power utilities. Although new uninhibited transformer insulating oil contains naturally occurring inhibitors, these inhibitors could deplete over time during operation. Once the inhibitor depleted completely, the oil would start to deteriorate at a faster rate and eventually could lead to faults in transformer. The common method of determining the weight percentage of inhibitor in transformer oil is through Fourier Transform Infrared (FTIR) spectroscopy. However, this method is laboratory-based, which means oil sampling at site is necessary and the oil samples need to be transported to the laboratory. The necessity for oil sampling, coupled with the high cost of FTIR equipment have led to high maintenance cost. Therefore, this work investigated the possibility of using single wavelength or waveband optical detection for the determination of weight percentage of inhibitor in transformer oil using ultraviolet-visible-near infrared (UV-VIS-NIR) spectroscopy. Result of the work shows that the samples with inhibitor produced an absorbance peak at 1403nm. The peak absorbance of the spectral response is proportional to the weight percentage of inhibitor content that was measured using the conventional method, which is IEC 60666. An equation was derived to model the peak absorbance and weight percent of inhibitor content (%IC) of the oil and it was verified with additional oil sample with a known weight percent of Inhibitor content.

AB - Monitoring and inspection of inhibitor content in transformer insulating oil has been a routine test for power utilities. Although new uninhibited transformer insulating oil contains naturally occurring inhibitors, these inhibitors could deplete over time during operation. Once the inhibitor depleted completely, the oil would start to deteriorate at a faster rate and eventually could lead to faults in transformer. The common method of determining the weight percentage of inhibitor in transformer oil is through Fourier Transform Infrared (FTIR) spectroscopy. However, this method is laboratory-based, which means oil sampling at site is necessary and the oil samples need to be transported to the laboratory. The necessity for oil sampling, coupled with the high cost of FTIR equipment have led to high maintenance cost. Therefore, this work investigated the possibility of using single wavelength or waveband optical detection for the determination of weight percentage of inhibitor in transformer oil using ultraviolet-visible-near infrared (UV-VIS-NIR) spectroscopy. Result of the work shows that the samples with inhibitor produced an absorbance peak at 1403nm. The peak absorbance of the spectral response is proportional to the weight percentage of inhibitor content that was measured using the conventional method, which is IEC 60666. An equation was derived to model the peak absorbance and weight percent of inhibitor content (%IC) of the oil and it was verified with additional oil sample with a known weight percent of Inhibitor content.

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M3 - Conference contribution

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Sing LY, Ker PJ, Jamaludin MZ, Ismail A, Abdullah F, Mun LH et al. Determining the inhibitor content of transformer insulating oil using UV-Vis spectroscopy. In Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016. Institute of Electrical and Electronics Engineers Inc. 2017. p. 179-183. 7893567. (Proceedings - 6th IEEE International Conference on Control System, Computing and Engineering, ICCSCE 2016). https://doi.org/10.1109/ICCSCE.2016.7893567