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Analysis and calculation of magnetic flux density distribution and core loss of nanocrystalline transformer

open access: yesEnergy Reports, 2022
Nanocrystalline transformers have better electromagnetic properties than electrical steel transformers, such as lower losses. Nowadays, numerous nanocrystalline magnetic cores have served in the research work of high-frequency transformers, but there is ...
Zhenyu Cai   +3 more
doaj   +1 more source

Distributional Watson Transforms [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1974
For all Watson transforms W in L2(R+) a triple of Hilbert space LG ⊂ L2(R+) ⊂ L'G is constructed such that W may be extended to L'G. These results allow the construction of a triple L ⊂ L2(R+) ⊂ L', where L is a Gelfand-Fréchet space. This leads to a theory of distributional Watson transforms.
Dijksma, A., de Snoo, H.S.V.
openaire   +3 more sources

FINITE-ELEMENT CALCULATION OF ELECTROMAGNETIC FORCES IN THE DEFERENT SHAPES OF DISTRIBUTION TRANSFORMERS WINDING UNDER SHORT CIRCUIT CONDITION

open access: yesJournal of Engineering and Sustainable Development, 2022
This paper is concerned with calculating the electromagnetic forces in the windings of distribution transformers with different shapes of coils. The electromagnetic forces as well as the magnetic flux density and their distribution were analyzed and ...
Weeam J. Hussein, Kassim R. Hameed
doaj   +3 more sources

Impact on Voltage Regulation in Medium Voltage Distribution Networks Due to the Insertion of Photovoltaic Generators

open access: yesEnergies, 2023
The objective of this paper was to analyze the impacts caused by the operation of voltage regulators in electrical distribution networks and to evidence the number of operations in the face of short-duration voltage variation caused by the high ...
Gustavo Fernandes de Negreiros   +3 more
doaj   +1 more source

Deep Learning-Based Short-Term Load Forecasting Approach in Smart Grid With Clustering and Consumption Pattern Recognition

open access: yesIEEE Access, 2021
Different aggregation levels of the electric grid’s big data can be helpful to develop highly accurate deep learning models for Short-term Load Forecasting (STLF) in electrical networks.
Dabeeruddin Syed   +6 more
doaj   +1 more source

Load Losses and Short-Circuit Resistances of Distribution Transformers According to IEEE Standard C57.110

open access: yesInventions, 2023
Load losses determine transformers’ efficiency and life, which are limited by overheating and deterioration of their elements. Since these losses can be characterized by short-circuit resistances, in this article, we have developed expressions for the ...
Vicente León-Martínez   +3 more
doaj   +1 more source

SOLID INSULATION DISTRIBUTION TRANSFORMER

open access: yesIET Conference Proceedings, 2021
The SIDT (solid insulation distribution transformer) was developed to provide an alternative solution to replace liquid-filled transformers that might leak oil to contaminate surrounding soil and underground water. Restoration costs could be higher than installing a new transformer.
Mun, Byungchul   +2 more
openaire   +3 more sources

Failure Diagnosis and Root-Cause Analysis of In-Service and Defective Distribution Transformers

open access: yesEnergies, 2021
Diagnostic data of transformers are essential in determining their integrity and to estimate their reliability. Such diagnostic data is not available for distribution transformers as only meagre attempts are made to accumulate this information.
Saravanakumar Arumugam
doaj   +1 more source

Critical stress of oval foil winding with epoxy coated insulation determined using measured equivalent modulus of elasticity

open access: yesAutomatika, 2020
In the distribution transformers design oval windings are used due to economic advantages. On the other hand, such windings are more susceptible to radial forces in a short circuit.
Nina Meško   +2 more
doaj   +1 more source

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