Results 31 to 40 of about 6,908,000 (315)

Review of Fiber Optic Diagnostic Techniques for Power Transformers

open access: yes, 2020
Diagnostic and condition monitoring of power transformers are key actions to guarantee their safe operation. The subsequent benefits include reduced service interruptions and economic losses associated with their unavailability. Conventional test methods
J. N’cho, I. Fofana
semanticscholar   +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]

open access: yesE3S 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   +7 more
doaj   +1 more source

Issues on optimization of operating modes of power transformers [PDF]

open access: yesE3S 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
doaj   +1 more source

On the Computational Power of Transformers and Its Implications in Sequence Modeling [PDF]

open access: yesConference on Computational Natural Language Learning, 2020
Transformers are being used extensively across several sequence modeling tasks. Significant research effort has been devoted to experimentally probe the inner workings of Transformers.
S. Bhattamishra   +2 more
semanticscholar   +1 more source

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

open access: yesEnergies, 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
doaj   +1 more source

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

open access: yesActa 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

Efficient Computation of Sensitivity Coefficients of Node Voltages and Line Currents in Unbalanced Radial Electrical Distribution Networks [PDF]

open access: yes, 2012
The problem of optimal control of power distribution systems is becoming increasingly compelling due to the progressive penetration of distributed energy resources in this specific layer of the electrical infrastructure. Distribution systems are, indeed,
Boudec, Jean-Yves Le   +3 more
core   +2 more sources

A Fully-Integrated Quad-Band GSM/GPRS CMOS Power Amplifier [PDF]

open access: yes, 2008
Concentric distributed active transformers (DAT) are used to implement a fully-integrated quad-band power amplifier (PA) in a standard 130 nm CMOS process.
Aoki, Ichiro   +8 more
core   +1 more source

Research on transformer vibration monitoring and diagnosis based on Internet of things

open access: yesJournal 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]

open access: yesZbornik 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
doaj   +1 more source

Home - About - Disclaimer - Privacy