The Need for Experimental and Numerical Analyses of Thermal Ageing in Power Transformers
Energies, 2022 Most power transformers are oil-immersed transformers for which its insulation system consists of oil and cellulosic solid. The insulation liquid impregnates the solid-covering air spaces, which improves the efficiency of the insulation system.
Inmaculada Fernández
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Electrical engineering & Electromechanics, 2016 Introduction. An important problem in power transformers resource prognosis is the formation of moisture dynamics trends of transformer insulation. Purpose.
V.V. Vasilevskij
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Development of a simulation model for assessing the technical condition of oil power transformers by measuring vibroacoustic parameters [PDF]
E3S Web of ConferencesIn the electric power industry, oil-type power transformers are considered the main device that ensures reliable transmission of electric power, and their technical capabilities are analyzed.
Yusupov D.T. +4 more
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An express assessment of the technical condition of an oil-filled power transformer using a simulation model based on the vibroacoustic parameters of the transformer tank [PDF]
E3S Web of ConferencesOil power transformers are the main device that ensures the reliability of power distribution in the electric power network. It is the only device for connecting electric power rings of any voltage.
Ismoilov Ibrokhimjon +7 more
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Energies, 2020 Electric locomotives in AC traction power systems represent a huge single-phase non-linear load and, detrimentally, affect the power quality and the efficiency of the three-phase power grid.
Mohamed Tanta +5 more
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Issues on optimization of operating modes of power transformers [PDF]
E3S Web of Conferences, 2019 The article presents measure to optimize the operating modes of power transformers in order to minimize losses of electrical energy. The influence of actual voltage and service life of power transformers on electric power losses is shown. It was proposed
Alyunov A.N. +4 more
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Research on transformer vibration monitoring and diagnosis based on Internet of things
Journal of Intelligent Systems, 2021 A recent advent has been seen in the usage of Internet of things (IoT) for autonomous devices for exchange of data. A large number of transformers are required to distribute the power over a wide area.
Wang Zhenzhuo, Sharma Amit
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A GaN-based wireless power and information transmission method using Dual-frequency Programmed Harmonic Modulation [PDF]
, 2020 Information transmission is often required in power transfer to implement control. In this paper, a Dual-Frequency Programmed Harmonic Modulation (DFPHM) method is proposed to transfer two frequencies carrying power and information with the single ...
Deng, Wei +5 more
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Acta Chimica Slovenica, 2019 The aim of the study was to exemplify the benefits of using electrochemical impedance spectroscopy (EIS) for quantification of coating quality during accelerated corrosion testing before the appearance of visual changes on the surface of the coating. The
Marina Mrda Lalic, Sanja Martinez
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Generator step up transformer overvoltage protection in EPS power plants [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2015 This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection.
Mrvić Jovan +2 more
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