Results 11 to 20 of about 858,505 (337)

Optimal parameter extraction of equivalent circuits for single- and three- phase Power transformers based on arctic puffin algorithm accomplished with experimental verification

open access: yesResults in Engineering
The power transformer is a critical device in power systems. This paper addresses one of the major problems which hopes to enhance the accuracy of estimation of parameters, which is critical in power transformer modeling, maintenance, and operating ...
Amlak Abaza   +4 more
doaj   +3 more sources

Parameter estimation in single-phase transformers via the generalized normal distribution optimizer while considering voltage and current measurements

open access: yesResults in Engineering
This research addresses, from a perspective of metaheuristic optimization, the problem regarding parametric estimation in single-phase transformers while considering voltage and current measures at the terminals of the transformer and weighing linear ...
Juan David Camelo-Daza   +3 more
doaj   +3 more sources

Experimental simulation analysis for single phase transformer tests

open access: yesBulletin of Electrical Engineering and Informatics, 2020
Transformer is one of main components in electrical power system which role to increase or reduce voltage. Characteristics of transformer would be vital to ensure the voltage is fully transferred. A single-phase transformer is a type of power transformer that utilizes single-phase alternating current, meaning the transformer relies on a voltage cycle ...
Ali Hamoodi   +2 more
openaire   +3 more sources

Finite-Element Analysis Modeling of High-Frequency Single-Phase Transformers Enabled by Metal Amorphous Nanocomposites and Calculation of Leakage Inductance for Different Winding Topologies

open access: yesIEEE transactions on magnetics, 2019
The solid-state transformer (SST) is an emerging technology which is gaining increasing importance for future power distribution systems. Here, we present 2-D finite-element analysis (FEA) of single-phase SSTs for operating frequencies of 50 kHz.
M. Nazmunnahar   +4 more
semanticscholar   +1 more source

Characterization of Few Mode Fibers by OLCI Technique [PDF]

open access: yes, 2014
International audienceAll LP modes of a few mode fiber are simultaneously characterized using phase-sensitive optical low-coherence interferometry. The differential modal group delay and absolute chromatic dispersion values of each mode are retrieved ...
Gabet, R.   +7 more
core   +3 more sources

Low-frequency model for single-phase transformers based on the three-component Preisach model considering deep saturation

open access: yesInternational Journal of Electrical Power & Energy Systems, 2019
The transformer model is very important for the transient simulations of power systems. Although a large number of researches have been carried out on the developments and applications of the transformer model, there are still some deficiencies in the ...
W. Sima   +6 more
semanticscholar   +1 more source

Online Detection of Inter-Turn Winding Faults in Single-Phase Distribution Transformers Using Smart Meter Data

open access: yesIEEE Transactions on Smart Grid, 2021
Turn-to-turn faults between primary windings due to insulation degradation are a major cause of distribution transformer failure, and occur due to high levels of stress such as overloading and overheating.
Kavya Ashok   +3 more
semanticscholar   +1 more source

Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]

open access: yes, 2014
Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA   +3 more
core   +1 more source

Research on the Magnetostrictive Characteristics of Transformers under DC Bias

open access: yesEnergies, 2023
Direct current (DC) bias leads to increased vibration and noise in transformers. One of the main causes is the magnetostrictive effect of the transformer core.
Xiaoli Yan   +4 more
doaj   +1 more source

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

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