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A new approach of tap changer maintenance incorporating nanoparticle insulating oil

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Abstract

In this paper, maintenance process for on-load tap changer (OLTC) would be enhanced using nanofluid that developed by adding nanoparticles (titanium dioxide, TiO2) to the insulating oil. The occurrence of the internal arcs inside OLTC resulted in the formation of carbon atoms on the inner bonding points during its operation. Over time, these points became unusable since the contact resistance value was high. To increase the efficiency of the maintenance process, infrared radiation was used to excite the additive TiO2 atoms to attract carbon atoms. Electrical tests were performed before and after the proposed maintenance process according to IEC standards. The results showed significant differences in the maintenance process with and without nanoparticles. A prediction model to identify the OLTC state was constructed based on support vector machine classifier. The results revealed the ability of the predicted model to predict the OLTC state with accuracy 100%.

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Acknowledgements

The authors would like to acknowledge the financial support received from Taif University Researchers Supporting Project Number (TURSP-2020/34), Taif University, Taif, Saudi Arabia.

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Authors and Affiliations

  1. Department of Electrical Engineering, College of Engineering, Taif University, Taif, 21944, Saudi Arabia

    Sherif S. M. Ghoneim & Ibrahim B. M. Taha

  2. Faculty of Engineering, Port Said University, Port Said, Egypt

    Sobhy S. Dessouky

  3. Faculty of Engineering, Tanta University, Tanta, Egypt

    Ibrahim B. M. Taha

  4. Egyptian Electricity Transmission, Cairo, Egypt

    Mohamed Shaaban

  5. Faculty of Technology and Education, Suez University, Suez, Egypt

    Sherif S. M. Ghoneim & Saad A. Mohamed Abdelwahab

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  1. Sherif S. M. Ghoneim
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  2. Sobhy S. Dessouky
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  3. Ibrahim B. M. Taha
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  4. Mohamed Shaaban
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  5. Saad A. Mohamed Abdelwahab
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Correspondence to Sherif S. M. Ghoneim.

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Ghoneim, S.S.M., Dessouky, S.S., Taha, I.B.M. et al. A new approach of tap changer maintenance incorporating nanoparticle insulating oil. Electr Eng 103, 931–944 (2021). https://doi.org/10.1007/s00202-020-01137-w

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  • DOI: https://doi.org/10.1007/s00202-020-01137-w

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