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Impact of the Cooling Equipment on the Key Design Parameters of a Core–Form Power Transformer

R eferences [1] Del VECCHIO, R. M.—POULIN, B.—FEGHALI, P. T.—SHAH, D. M.—AHUJA, R. : Transformer Design Principles: with Applications to Core-Form Power Transformers, CRC press, 2010. [2] RYAN, H. M. : High Voltage Engineering and Testing 3rd Edition. IET, 2013, N0 32. [3] KULKARNI, S. V.—KHAPARDE, S. : Transformer Engineering: Design and Practice. CRC Press, 2004,, vol. 25. [4] KAPP, G. : Transformatoren für Wechselstrom und Drehstrom (Transformers for Single and Multiphase Currents: A Treatise on Their Theory, Construction, and Use

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Design Optimization with Geometric Programming for Core Type Large Power Transformers

References [1] G. Újházy, “Design of winding systems of power transformers”, Elekrotechnika, pp. 450–459, November-December 1969. [2] R.M. Del Vecchio, B. Poulin, P.T. Feghali, D.M. Shah, R. Ahuja, „Transformer Design Principles – With Applications to Core-Form Power Transformers ”, Crc Press, 2002. [3] G. Újházy, “A transzformátortervezés gépi programozásának kérdései”, Elekrotechnika, pp. 355–363, September 1969. Academic, 2003. [4] O.W. Andersen, „Optimized Design of Electric Power Equipment”, IEEE Computer Applications in Power, Vol. 4, January

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Operation Modes of HV/MV Substations

.schneider-electric.com/documents/technicalpublications/en/shared/electricalengineering/electrical-networks/high-voltage-plus-1kV/ect.pdf Survilo J., Guseva S. Transformer design problems concerning "deep" 20 kV leads-in for rural localities. Latvian journal of phisics and technical sciences. No4. Riga, 2004, p.28-40. Survilo J. Possibility of alternate configuration of high voltage substation. Scientific procedings of Riga technical university; power and electrical engineering, series 4, vol. 23. Rīga, 2008, pp. 10-17. Vanags A. Elektriskie tīkli un sistēmas, I daļa. Rīga, RTU izdevniecība, 2005, 7. piel

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Intelligent Transformer: Possibilities and Challenges

References Iman-Eini, H.; Farhangi, S.; Schanen, J.-L.; Aime, J.;, "Design of Power Electronic Transformer based on Cascaded H-bridge Multilevel Converter," Industrial Electronics, 2007. ISIE 2007. IEEE International Symposium on , vol., no., pp.877-882, 4-7 June 2007. van der Merwe, J.W.; du T. Mouton, H.;, "The solid-state transformer concept: A new era in power distribution," AFRICON, 2009. AFRICON '09. , vol., no., pp.1-6, 23-25 Sept. 2009. Heinemann, L.; Mauthe, G.;, "The

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Direct currents in power transformers

R eferences [1] E. Priest, Solar magnetohydrodynamics , Dordecht, D. Reidel Publ.Co., 1984. [2] D. Mayer, ”Contribution to the investigation of the influence of geomagnetic storms on the electrification system”, Acta Technica AVCR , vol. 58, no. 4, pp. 351-365, 2013. [3] R. Girgis, ”Effects of geomagnetically induced currents on power transformers and power systems”, CIGRE , 21, rue d’Artois, F-75008 Paris, A2-304, pp. 1-8. [4] P. R. Price, ”Geomagnetically induced current effects on transformers”, IEEE Trans. on Power Delivery , vol

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Demagnetization of instrument transformers before calibration

R eferences [1] L. Trigo, G. Aristoy, A. Santos and D. Slomovitz, On Site Calibration of Current Transformers, Proc. of I2MTC 2014 , pp.1245-1246. [2] P. Mlejnek, P. Kaspar and K. Draxler, Measurement of Ratio Error and Phase Displacement of Current Transformers, EMSA ‘06 - 6th European Magnetic Sensors and Actuators Conference. Bilbao , University of the Basque Country, 2006, pp.39. [3] K. Draxler and R. Styblikova, Effect of Magnetization on Instrument Transformers Errors, Journal of Electrical Engineering , 2010, 61(7/s), pp.50-53, ISSN

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Frequency and time fault diagnosis methods of power transformers

References [1] Hrabovcova, V., Rafajdus, P., Franko, M., Hudák, M. (2009). Measuring and Modelling of Electrical Machines. Žilina, Slovakia: EDIS. ISBN 978-80-8070- 924-2. (in Slovak) [2] Wang, T., He, Y.G., Luo, Q.W., Deng, F.M., Zhang, C.L. (2017). Self-powered RFID sensor tag for fault diagnosis and prognosis of transformer winding. IEEE Sensors Journal, 17 (19), 6418-6430. [3] Islam, M.M., Lee, G., Hettiwatte, S.N. (2017). A nearest neighbour clustering approach for incipient fault diagnosis of power

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The transformer species of the Ukrainian Polissya

alien plant species on the phytobiota of Ukraine. In: O. V. Dudkin (ed.). Assessment and Mitigation of Threats to Biodiversity of Ukraine, pp. 129-155. Chimjest Publ., Kiev. Protopopova V. V. & Shevera M. V. 2014. Ergasiophytes of the Ukrainian flora. Biodiv. Res. Conserv. 35: 31-46. Protopopova V. V., Shevera M. V., Bagrikova, N. A. & Ryff L. E. 2012. T he transformer species of the flora of the South Coast of Crimea. Ukr. Bot. J. 69(1): 54-68. Protopopova V. V., Shevera M. V., Chorney I. I., Tokaryuk A. I., Budzhak V

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Locating Pd in Transformers through Detailed Model and Neural Networks

References [1] NADERI, MOHAMMAD S.-VAKILIAN, M.-BLACKBURN, T. R.-PHUNG, B. T.-NADERI, MEHDI S.-NASIRI, A. : A Hybrid Transformer Model for Determination of Partial Discharge Location in Transformer Winding, IEEE Transactions on Dielectrics and Electrical Insulation 14, No. 2 (Apr 2007). [2] MOORE, P. J.-PORTUGUES, I. E.-GLOVER, I. A. : Partial Discharge Investigation of a Power Transformer using Wireless Wideband Radio-Frequency Measurements, IEEE Transaction on Power Delivery 21 No. 1 (Jan 2006). [3] WANG, Z. D

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Induced over voltage test on transformers using enhanced Z-source inverter based circuit

R eferences [1] F. Z. Peng, “Z-source inverter”, IEEE Transactions on Industry Applications , vol. 39, no.2, pp. 504-510, 2003. [2] Geno and Peter, “A Review about testing of distribution transformer”, International Journal of Advancements Technology , vol. 2, no.1, pp. 165-177, 2011. [3] Y. [3], S. Tang, J. Xie and Wei, “Grid-tied photovoltaic system with series Z-source inverter”, IET Renewable Power Generation , vol. 7, no.3, pp. 275-283, January 2013. [4] F. [4], P. C. Gao, F. Loh, and and C. J. Blaabjerg and Gajanayake

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