Results 31 to 40 of about 15,628 (237)
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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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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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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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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Partial Discharge Monitoring in Power Transformers Using Low-Cost Piezoelectric Sensors
Sensors, 2016 Power transformers are crucial in an electric power system. Failures in transformers can affect the quality and cause interruptions in the power supply.
Bruno Castro +6 more
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Transformer Monitoring and Protection in Dynamic Power Systems – A Review
Frontiers in Energy Research, 2020 Increasing distributed energy resources, especially the renewable energy resources (RESs) are being installed across power systems these years. These RESs, including solar photovoltaic, wind turbines, etc., provide opportunities for operators to improve ...
Boqi Xie, Dongbo Zhao, Tianqi Hong
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Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Advanced Engineering Research, 2018 Introduction. Power transformers are the basic equipment of the industrial power systems. One of the key indicators of determining the service lifetime of the transformer including its performance characteristics is the condition and residual life of its
A. V. Kostyukov +2 more
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