Results 11 to 20 of about 143,004 (304)

A Novel Approach to Predict Transformer Temperature Rise under Harmonic Load Current Conditions

open access: yesEnergies, 2022
In South Africa, distribution transformers (DTs) facilitating solar photovoltaic applications represent the highest percentage of total ownership cost investment for independent power producers (IPPs).
Bonginkosi A. Thango, Pitshou N. Bokoro
doaj   +1 more source

Greening elements in the distribution networks

open access: yesJournal of Industrial Engineering and Management, 2010
Due to climate change and the increase in environmental awareness in the world, the concept of Green Supply Chain Management appeared. The concept is aimed at the reduction of several elements: energy, materials, the pollution and the waste in production
Tihomir Opetuk, Ivan Zolo, Goran Dukic
doaj   +1 more source

Configurations, Power Topologies and Applications of Hybrid Distribution Transformers

open access: yesEnergies, 2021
Distribution systems are under constant stress due to their highly variable operating conditions, which jeopardize distribution transformers and lines, degrading the end-user service.
Alvaro Carreno   +5 more
doaj   +1 more source

A distributional Hardy transformation [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 1974
In this paper the classical Hardy transformation (5) has been extended to distributions. The celebrated Hankel transformation, Y-transformation and H-transformation are particular cases of the Hardy transformation. The Hankel transformation has been extended to distributions by Zemanian(12).
R. S. Pathak, J. N. Pandey
openaire   +3 more sources

Prediction of remaining life of power transformers based on left truncated and right censored lifetime data [PDF]

open access: yes, 2008
Prediction of the remaining life of high-voltage power transformers is an important issue for energy companies because of the need for planning maintenance and capital expenditures.
Hong, Yili   +4 more
core   +7 more sources

First Approach for the Modelling of the Electric Field Surrounding a Piezoelectric Transformer in View of Plasma Generation [PDF]

open access: yes, 2012
This paper is about an open multi-physics modelling problem resulting from recent investigations into plasma generation by piezoelectric transformers.
Lefèvre, Yvan   +2 more
core   +2 more sources

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

Adjustment of model parameters to estimate distribution transformers remaining lifespan [PDF]

open access: yes, 2018
Currently, the electrical system in Argentina is working at its maximum capacity, decreasing the margin between the installed power and demanded consumption, and drastically reducing the service life of transformer substations due to overload (since the ...
Gotay Sardiñas, Jorge   +3 more
core   +1 more source

The Power of Convex Algebras [PDF]

open access: yes, 2020
Probabilistic automata (PA) combine probability and nondeterminism. They can be given different semantics, like strong bisimilarity, convex bisimilarity, or (more recently) distribution bisimilarity.
Bonchi, Filippo   +2 more
core   +3 more sources

Optimal Planning Method of On-load Capacity Regulating Distribution Transformers in Urban Distribution Networks after Electric Energy Replacement Considering Uncertainties

open access: yesEnergies, 2018
Electric energy replacement is the umbrella term for the use of electric energy to replace oil (e.g., electric automobiles), coal (e.g., electric heating), and gas (e.g., electric cooking appliances), which increases the electrical load peak, causing ...
Yu Su   +4 more
doaj   +1 more source

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