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Determination of Dielectric Losses in a Power Transformer

Energies, 2022
The article presents a method of determining dielectric losses that occur in insulating materials in a power transformer. These losses depend mainly on the electric field stress, pulsation, dielectric loss coefficient, and electrical permittivity of ...
Zbigniew Nadolny
doaj   +3 more sources

Synthesis and characterizations of (Ba1-xCax)Ti4O9, 0 ≤ x ≤ 0.9 ceramics

Journal of Materials Research and Technology, 2021
Manufacturing of energy storage devices with good efficiency and fewer losses has been a distinct topic. A material with good dielectric properties and fewer energy losses is the basic demand of the electronic industry.
Asad Ali, Sarir Uddin, Zafar Iqbal, Madan Lal, Muhammad Hasnain Jameel, Abid Zaman, Abid Ahmad, Waqas Khan   +7 more
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Implications of Nonlinear Material Parameters on the Dielectric Loss under Harmonic Distorted Voltages

Energies, 2021
The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde, Jun Ting Loh, Stefan Kornhuber, Karsten Backhaus, Stephan Schlegel, Steffen Großmann   +5 more
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Effective parameters of dielectric absorption of polymeric insulation with semiconductor coatings of power high voltage cables

Electrical engineering & Electromechanics, 2022
Introduction. The presence of semiconductor shields leads to additional dielectric losses compared to polymer insulation without shields. Losses in cables in the presence of semiconductor coatings depend on the dielectric permittivity and resistivity of ...
G. V. Bezprozvannych, M. V. Grynyshyna
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Unique-Solution Single-Sample Complex Dielectric Characterization Through Linear Phase Approximation

IEEE Open Journal of Antennas and Propagation, 2022
This paper presents a transmission-only (TO) approach that solves the long-standing problem of transmission phase ambiguity. The approach considers a linear frequency-dependent phase approximation to derive the phase mode value analytically and uniquely ...
Constant M. A. Niamien
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Studying the Effect of Aluminum Powder Addition on Dielectric Behavior of Polyester Composite Materials [PDF]

Engineering and Technology Journal, 2013
The effect of both weight fraction of aluminium and frequency on dielectric properties of Al- powder reinforced polyester composite materials were investigated.
Nirvana A. Abd Alameer, Shayma. H. Mohammad   +1 more
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Correlations between physico-chemical properties and dielectric behavior of thermally aged XLPE cables insulation

ENP Engineering Science Journal, 2022
The carried out investigations aim at clarifying the correlations between physico-chemical properties and the variation of dielectric losses of Cross-Linked Polyethylene (XLPE) as Medium Voltage cable insulation during thermal aging. The used cables were
Yasmina Sebbane, Ahmed Boubakeur, Abdelouahab Mekhaldi   +2 more
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Vector Resolved Energy Fluxes and Collisional Energy Losses in Magnetic Nozzle Radiofrequency Plasma Thrusters

Frontiers in Physics, 2021
Energy losses in a magnetic nozzle radiofrequency plasma thruster are investigated to improve the thruster efficiency and are calculated from particle energy losses in fully kinetic simulations.
Kazuma Emoto, Kazunori Takahashi, Yoshinori Takao   +2 more
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CaCu3Ti4O12 ceramics from co-precipitation method: Dielectric properties of pellets and thick films [PDF]

, 2009
Dielectric properties of CaCu3Ti4O12 (CCTO)-based ceramics and thick films (e ∼50m) prepared from powders synthesized by a soft chemistry method (co-precipitation) are presented and discussed.
Barbier, Bertrand, Chartier, Thierry, Combettes, Céline, Dutarde, Emmanuel, Guillemet-Fritsch, Sophie, Lebey, Thierry, Rossignol, Fabrice, Rumeau, Axel   +7 more
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Synthesis and characterization of manganese ferrite from low grade manganese ore through solid state reaction route

Scientific Reports, 2021
Manganese ferrite spinel has been synthesized by using low grade manganese ore and ferric oxide as sources of manganese oxide and iron oxide through solid state reaction route by taking manganese and iron mole ratio of 1:2 respectively.
Salar Ahmad, Sajjad Ali, Ikram Ullah, M. S. Zobaer, Ashwag Albakri, Taseer Muhammad   +5 more
doaj   +1 more source