Results 21 to 30 of about 27,957 (314)
Transformation of Frequency Distributions [PDF]
Nature, 1948 FREQUENCY distributions of numbers of eggs, insects, spores, or other biological entities are descriptive of discrete variation, and can never be represented exactly by a normal distribution or by any other distribution of a continuous variate. Nevertheless, when the number of observations and the range of variation is large, such distributions may ...
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Fuzzy logic applied to the diagnosis of technical conditions of distribution transformers
Journal of Engineering and Applied Science, 2023 The distribution transformers are one of the most important elements for the operation of the distribution networks, considering their quantity and dispersion in the network, and that the failures cause great economic losses, both from the point of view ...
Eduardo Sierra Gil +3 more
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Four-Wire Delta Service Sinusoidal Operation and Compensation Simulator
Energies, 2015 An off-line simulator based on Excel used to evaluate the operation of four-wire delta (4WD) services as well as the effects of reactive and imbalance compensators in sinusoidal steady-state conditions is described in this paper.
Vicente León-Martínez +3 more
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Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]
, 2006 In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Jorge Ramirez +3 more
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Transformers Improvement and Environment Conservation by Using Synthetic Esters in Egypt
Energies, 2021 Distribution transformer (DT) is a crucial component in power systems as it exchanges energies between different voltage levels or between utility grid and DC microgrids.
Ali A. Radwan +5 more
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Assessing and Mitigating Impacts of Electric Vehicle Harmonic Currents on Distribution Systems
Energies, 2020 Harmonic currents of electric vehicle (EV) chargers could jeopardize the power quality of distribution systems and add to the transformer’s losses, thus degrading its lifetime.
Dima Alame, Maher Azzouz, Narayan Kar
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Energies, 2022 In the new era of the renewable energy market in South Africa, there is a knowledge gap in the technical standards relating to distribution transformers, which are exclusively intended to serve in large-scale solar photovoltaic (PV) applications.
Bonginkosi A. Thango, Pitshou N. Bokoro
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The S-Transform of Distributions [PDF]
The Scientific World Journal, 2014 Parseval’s formula and inversion formula for the S-transform are given. A relation between the S-transform and pseudodifferential operators is obtained. The S-transform is studied on the spaces𝒮(ℝn)and𝒮′(ℝn).
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Applied Sciences, 2022 A procedure for improving the energy, economic and environmental sustainability of the transformation houses in low-voltage distribution networks is described in this paper.
Vicente León-Martínez +5 more
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Future Internet, 2023 Digitalization of the failure-probability modeling of crucial components in power-distribution systems is important for improving risk and reliability analysis for system-maintenance and asset-management practices.
A. M. Sakura R. H. Attanayake +1 more
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