Results 21 to 30 of about 4,658,734 (302)

Optimization of distribution transformer efficiency characteristics. Final report [PDF]

open access: yes, 1979
A method for distribution transformer loss evaluation was derived. The total levelized annual cost method was used and was extended to account properly for conditions of energy cost inflation, peak load growth, and transformer changeout during the ...
Braunstein, H.
core   +1 more source

Computational and experimental verification of the equivalent permeability of the step-lap joints of transformer cores

open access: yes, 2008
The paper develops an efficient computational method for establishing equivalent characteristics of magnetic joints of transformer cores, with special emphasis on step-lap design.
N. Nihat   +7 more
core   +2 more sources

A Machine Learning Application for the Energy Flexibility Assessment of a Distribution Network for Consumers

open access: yesEnergies, 2023
This paper presents a step-by-step approach to assess the energy flexibility potential of residential consumers to manage congestion in the distribution network. A case study is presented where a selected transformer station exhibits signs of overloading.
Jaka Rober   +2 more
doaj   +1 more source

Transformation of Frequency Distributions [PDF]

open access: yesNature, 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 ...
openaire   +2 more sources

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

Improving the thermal performance of electrical transformers using hybrid mixture of (transformer oil, nanoparticles, and PCM)

open access: yesAl-Qadisiyah Journal for Engineering Science, 2020
In this paper, an experimental electrical distribution transformer was studied and a new technique was proposed to improve the performance of a new mixed cooling consisting of pure transformer oil, paraffin wax and nanoparticles.
Mushtaq I. Hasan   +2 more
doaj   +1 more source

Experimental Study of the Dynamic Short-Circuit Withstand Capability of an 8400 kVA Power Transformer Specially Designed for Photovoltaic Applications

open access: yesMachines, 2023
This article, besides offering data of great value for any designer of high-power short-circuits of special three-winding design, illustrates the correlation with the corresponding FRA measurements, validating this type of measurement.
Cristian-Eugeniu Sălceanu   +5 more
doaj   +1 more source

On the Laplace Transform of the Lognormal Distribution [PDF]

open access: yesMethodology and Computing in Applied Probability, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Asmussen, Søren   +2 more
openaire   +8 more sources

Pre-breakdown Characteristics of Contaminated Power Transformer Oil [PDF]

open access: yes, 2007
In this paper we have studied pre-breakdown characteristics of transformer oil in the presence of different levels of contamination. The contaminant is fibrous dust from pressboard insulation used for high voltage transformers.
Zuber, H M, Chen, G
core   +2 more sources

Island Partition of Distribution System with Distributed Generators Considering Protection of Vulnerable Nodes

open access: yesApplied Sciences, 2017
To improve the reliability of power supply in the case of the fault of distribution system with multiple distributed generators (DGs) and reduce the influence of node voltage fluctuation on the stability of distribution system operation in power ...
Gang Xu, Shunyu Wu, Yuanpeng Tan
doaj   +1 more source

Home - About - Disclaimer - Privacy