Results 1 to 10 of about 4,784,586 (262)

Development of a simulation model for assessing the technical condition of oil power transformers by measuring vibroacoustic parameters [PDF]

E3S Web of Conferences
In 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., Ismoilov I.K., Norboev A.E., Beytullaeva R.X., Yuldashev A.A.   +4 more
doaj   +1 more source

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 Conferences
Oil 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, Boynazarov Bekzod, Uzbekov Mirsoli, Yusupov Dilmurod, Zoxidov Iqboljon, Xamrakulova Xilola, Kobilov Mirodil, Nasretdinova Feruza   +7 more
doaj   +1 more source

Topologies and Operation Modes of Rail Power Conditioners in AC Traction Grids: Review and Comprehensive Comparison

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, José Gabriel Pinto, Vitor Monteiro, Antonio P. Martins, Adriano S. Carvalho, Joao L. Afonso   +5 more
doaj   +1 more source

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., Vyatkina O.S., Akhmetova I.G., Pentiuc R.D., Sakipov K.E.   +4 more
doaj   +1 more source

A Novel Application of EIS for Quantitative Coating Quality Assessment During Neutral Salt Spray Testing of High-Durability Coatings

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
doaj   +1 more source

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
doaj   +1 more source

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, Vukelja Petar, Simić Ninoslav   +2 more
doaj   +1 more source

Ensuring safe operating conditions for power transformers under thermal effects of short-circuit curre

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, V. A. Solomin, A. A. Kostyukov   +2 more
doaj   +1 more source

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
doaj   +1 more source

Power Transformations in Correspondence Analysis [PDF]

SSRN Electronic Journal, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources