Volume 40, Issue 3, September 2023, Pages 735–745
Gnoléba Célestin Bogui1, Koutoua Simon Kassi2, and Zié Yéo3
1 UMRI Génie Electricité et Electronique Appliquée, Institut National Polytechnique Houphouët Boigny (INP-HB), BP 1093 Yamoussoukro, Côte d’Ivoire
2 LRAE (Laboratoire de Recherche sur l’Appareillage Electrique), Département Génie Electrique et Electronique, Institut National Polytechnique Houphouët Boigny, BP 1093 Yamoussoukro, Côte d’Ivoire
3 LRAE (Laboratoire de Recherche sur l’Appareillage Electrique), Département Génie Electrique et Electronique, Institut National Polytechnique Houphouët Boigny, BP 1093 Yamoussoukro, Côte d’Ivoire
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The liquid-insulated power transformer is the most critical and expensive component of the power supply system. In order to improve monitoring of the state of health of these devices (transformers) installed on the power grid in the bank of the large metropolis of Abidjan, dissolved gas analysis (DGA) was used. Conventional interpretation techniques were developed to diagnose transformer oil. The database we used consists of those of the Compagnie Ivoirienne d'Electricité (CIE) in 2018. It includes 25 samples containing analysis of the five main dissolved gases (H2, CH4, C2H2, C2H4, C2H6). The five defect classes we considered, namely partial discharge (PD), D1 and D2 electrical defects, T1&T2 and T3 thermal defects, are taken from the IEC and IEEE. For interpretation, five methods were adopted, namely the IEC, Doenenburg, Rogers criteria using the ppm gas concentration ratio technique, the Duval triangle using percentage gas concentrations and the IEEE criterion using ppm gas concentrations. The highest success rate of 72% was obtained when using the Duval triangle criterion. But the greatest consistency with a rate of over 70% was observed using the IEC ratio criterion.
Author Keywords: power transformer, dissolved gas analysis, diagnostics, conventional methods, North Abidjan.
Gnoléba Célestin Bogui1, Koutoua Simon Kassi2, and Zié Yéo3
1 UMRI Génie Electricité et Electronique Appliquée, Institut National Polytechnique Houphouët Boigny (INP-HB), BP 1093 Yamoussoukro, Côte d’Ivoire
2 LRAE (Laboratoire de Recherche sur l’Appareillage Electrique), Département Génie Electrique et Electronique, Institut National Polytechnique Houphouët Boigny, BP 1093 Yamoussoukro, Côte d’Ivoire
3 LRAE (Laboratoire de Recherche sur l’Appareillage Electrique), Département Génie Electrique et Electronique, Institut National Polytechnique Houphouët Boigny, BP 1093 Yamoussoukro, Côte d’Ivoire
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The liquid-insulated power transformer is the most critical and expensive component of the power supply system. In order to improve monitoring of the state of health of these devices (transformers) installed on the power grid in the bank of the large metropolis of Abidjan, dissolved gas analysis (DGA) was used. Conventional interpretation techniques were developed to diagnose transformer oil. The database we used consists of those of the Compagnie Ivoirienne d'Electricité (CIE) in 2018. It includes 25 samples containing analysis of the five main dissolved gases (H2, CH4, C2H2, C2H4, C2H6). The five defect classes we considered, namely partial discharge (PD), D1 and D2 electrical defects, T1&T2 and T3 thermal defects, are taken from the IEC and IEEE. For interpretation, five methods were adopted, namely the IEC, Doenenburg, Rogers criteria using the ppm gas concentration ratio technique, the Duval triangle using percentage gas concentrations and the IEEE criterion using ppm gas concentrations. The highest success rate of 72% was obtained when using the Duval triangle criterion. But the greatest consistency with a rate of over 70% was observed using the IEC ratio criterion.
Author Keywords: power transformer, dissolved gas analysis, diagnostics, conventional methods, North Abidjan.
How to Cite this Article
Gnoléba Célestin Bogui, Koutoua Simon Kassi, and Zié Yéo, “Use of dissolved gas analysis methods as tools for monitoring the state of health of power transformers installed on the electrical network in the northern shore of the large metropolis of Abidjan,” International Journal of Innovation and Applied Studies, vol. 40, no. 3, pp. 735–745, September 2023.
