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Transformer Oil Dielectric Characteristics in Microwave Assisted Reconditioning Processes

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Abstract

Maintenance of transformer oil is needed to maintain the quality of power service. Thermal heating and filtering are the main ways to remove contaminants from the oil. In this research, a preliminary study was carried out using microwaves as thermal heaters in the reconditioning process of used transformer oil. The reconditioning process is carried out by filtering and thermal heating varies from temperatures of 40–100 °C using a microwave oven. Dielectric characteristics are shown by analyzing breakdown voltage, dielectric power loss, viscosity, and dc conductivity measurements. The amount of moisture content is also taken into account in measuring the level of thermal efficiency of the heater. Under the influence of microwaves, an increase in the characteristics of the dielectric strength in the form of an increase in breakdown voltage reaches 140.50%. Microwave heating is very good in reducing the water content in oil with a level of thermal efficiency reaching 25.55–40.40%. Removal of contaminants is better done by microwaves characterized by a decrease in the value of the dielectric power loss and dc conductivity at each treatment.

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References

  1. N’Cho JS, Fofana I, Beroual A, Aka-Ngnui T, Sabau J (2012) Aged oils reclamation: facts and arguments based on laboratory studies. IEEE Trans Dielectr Electr Insul 19(5):1583–1592

    Article  Google Scholar 

  2. Okabe S, Ueta G, Tsuboi T (2013) Investigation of aging degradation status of insulating elements in oil-immersed transformer and its diagnostic method based on field measurement data. IEEE Trans Dielectr Electr Insul 20:346–355

    Article  Google Scholar 

  3. Ueta G, Tsuboi T, Okabe S, Amimoto T (2012) Study on degradation causing components of various characteristics of transformer insulating oil. IEEE Trans Dielectr Electr Insul 19:2216–2224

    Article  Google Scholar 

  4. Hadjadj Y, Fofana I, Van De Voort FR, Bussieres D (2016) Potential of determining moisture content in mineral insulating oil by fourier transform infrared spectroscopy. IEEE Electr Insul Mag 32(1):34–39

    Article  Google Scholar 

  5. Liu J, Zhou L, Luo Y, Huang X, Wu G (2013) Dielectric frequency response of oil-paper composite insulation with transient moisture distribution. IEEE Trans Dielectr Electr Insul 20(4):1380–1387

    Article  Google Scholar 

  6. Zhou Y, Huang M, Chen W, Jin F (2015) Space charge behavior of oil-paper insulation thermally aged under different temperatures and moistures. J Electr Eng Technol 10(3):1124–1130

    Article  Google Scholar 

  7. Wada J, Ueta G, Okabe S, Amimoto T (2014) Method to evaluate the degradation condition of transformer insulating oil-experimental study on the hydrophilic and dissociative properties of degradation products. IEEE Trans Dielectr Electr Insul 21(2):873–881

    Article  Google Scholar 

  8. Zukowski P et al (2016) Dielectric losses in the composite cellulose–mineral oil–water nanoparticles: theoretical assumptions. Cellulose 23(3):1609–1616

    Article  Google Scholar 

  9. Jones C (2016) Condition assessment of the electrical insulation in a high voltage current transformer using an oil/sand mix. IEEE Electr Insul Mag 32(1):14–20

    Article  Google Scholar 

  10. Khelfane I, Debche A, Nacer A, Beldjilali A, Toudja T, Moulai H (2014) Moisture and electrical discharges effect on naphthenic mineral oil properties. IET Sci Meas Technol 8(6):588–594

    Article  Google Scholar 

  11. Tokunaga J, Koide H, Mogami K, Hikosaka T (2016) Comparative studies on the aging of thermally upgraded paper insulation in palm fatty acid ester, mineral oil, and natural ester. IEEE Trans Dielectr Electr Insul 23(1):258–265

    Article  Google Scholar 

  12. (2007) IEEE guide for the evaluation and reconditioning of liquid immersed power transformers. In: IEEE Std C57.140-2006, pp cl–67

  13. Kohtoh M, Kaneko S, Okabe S, Amimoto T (2009) Aging effect on electrical characteristics of insulating oil in field transformer. IEEE Trans Dielectr Electr Insul 16(6):1698–1706

    Article  Google Scholar 

  14. Raymon A, Karthik R (2015) Reclaiming aged transformer oil with activated bentonite and enhancing reclaimed and fresh transformer oils with antioxidants. IEEE Trans Dielectr Electr Insul 22(1):548–555

    Article  Google Scholar 

  15. Loiselle L, Fofana I, Sabau J, Magdaleno-Adame S, Olivares-Galvan JC (2015) Comparative studies of the stability of various fluids under electrical discharge and thermal stresses. IEEE Trans Dielectr Electr Insul 22(5):2491–2499

    Article  Google Scholar 

  16. Lam SS, Russell AD, Lee CL, Chase HA (2012) Microwave-heated pyrolysis of waste automotive engine oil: Influence of operation parameters on the yield, composition, and fuel properties of pyrolysis oil. Fuel 92(1):327–339

    Article  Google Scholar 

  17. Lam SS, Russell AD, Chase HA (2010) Microwave pyrolysis, a novel process for recycling waste automotive engine oil. Appl Energy 35(7):2985–2991

    Article  Google Scholar 

  18. Alomair OA et al (2012) Improving heavy oil recovery by unconventional thermal methods. In: SPE Kuwait international petroleum conference and exhibition

  19. Bientinesi M et al (2013) A radiofrequency/microwave heating method for thermal heavy oil recovery based on a novel tight-shell conceptual design. J Pet Sci Eng 107:18–30

    Article  Google Scholar 

  20. Arvas S, Sajjad H, Altaf A, Khan S, Arvas E (2016) Microwave heating of heavy oil and bitumen. In: 2016 IEEE Asia-Pacific conference on applied electromagnetics, APACE 2016, pp 319–322

  21. Bera A, Babadagli T (2015) Status of electromagnetic heating for enhanced heavy oil/bitumen recovery and future prospects: a review. Appl Energy 151:206–226

    Article  Google Scholar 

  22. Zhang Y, Adam M, Hart A, Wood J, Rigby SP, Robinson JP (2018) Impact of oil composition on microwave heating behavior of heavy oils. Energy Fuels 32(2):1592–1599

    Article  Google Scholar 

  23. Metaxas AC, Meredith RJ (2008) Industrial microwave heating, power and energy. The Institution of Engineering and Technology, London

    Google Scholar 

  24. Ferguson R, Lobeiras A, Sabau J, Background T (2002) Suspended particles in the liquid insulation of aging power transformers. IEEE Electr Insul Mag 18(4):17–23

    Article  Google Scholar 

  25. Meredith R (1988) Engineers’ handbook of industrial microwave heating, IEE power. The Institution of Electrical Engineers, London

    Google Scholar 

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Authors and Affiliations

  1. Department of Electrical Engineering and Information Technology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia

    Yuli Rodiah, Tarcicius Haryono & Fransisco Danang Wijaya

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  1. Yuli Rodiah
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  2. Tarcicius Haryono
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  3. Fransisco Danang Wijaya
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Correspondence to Yuli Rodiah.

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Rodiah, Y., Haryono, T. & Danang Wijaya, F. Transformer Oil Dielectric Characteristics in Microwave Assisted Reconditioning Processes. J. Electr. Eng. Technol. 15, 1261–1267 (2020). https://doi.org/10.1007/s42835-020-00384-y

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  • DOI: https://doi.org/10.1007/s42835-020-00384-y

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