Results 31 to 40 of about 1,101,419 (336)

Impact of the Short-Circuit Current Value on the Operation of Overhead Connections in High-Voltage Power Stations

open access: yesEnergies, 2023
This paper focuses on determining the effects of short-circuit current values on the operation of high-voltage substations. The analyses performed focused on the dynamic and thermal effects on the short-circuit current for different input data ...
Łukasz Kozarek   +11 more
doaj   +1 more source

Operational determination of the point of a short circuit in power lines

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
RELEVANCE. An urgent task is to improve the reliability and quality of power supply. Very often, failures in operation are caused by damage to overhead and cable lines.
K. V. Suslov   +3 more
doaj   +1 more source

Evaluation of loss generated by edge burrs in electrical steels [PDF]

open access: yes, 2016
In large motor cores, faults caused by edge burrs between the core laminations can result in short circuit currents which may be large enough to cause burning or complete machine failure.
Anayi, Fatih, Eldieb, Asheraf
core   +2 more sources

Fault Ride-Through Control Strategy for Grid-Forming Inverters Based on Dynamic Virtual Angular Velocity Regulation [PDF]

open access: yesDianli jianshe
[Objective] The large-scale integration of inverter-based renewable generation introduces new challenges for power-system stability. Although virtual synchronous generator(VSG)control imparts virtual inertia and damping,grid short-circuit faults can ...
ZHAO Ping, DU Long, GONG Yan, LI Zhenxing
doaj   +1 more source

Choosing the type of equivalent circuit of traction substation when calculating short-circuit currents in 25 kV power supply system

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
When calculating short circuit currents in the traction network, it is necessary to take into account the input resistance of the traction substation, including the resistance of the transformers of the substation and the resistance of the power supply ...
E. P. Figurnov   +2 more
doaj   +1 more source

EVALUATION OF THE EFFICIENCY OF THE DEVICE FOR LIMITING TENSION OF THE WIRE IN A SHORT CIRCUIT

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
The intensity of the electrodynamic action of currents of a short circuit on the flexible conductors of overhead lines depends on the magnitude of currents of short-circuit. The commis sioning of new capacities is inevitably accompanied by an increase in
I. I. Sergey   +2 more
doaj   +1 more source

Improved performance of porphyrin-based dye sensitised solar cells by phosphinic acid surface treatment [PDF]

open access: yes, 2009
Chemical surface treatment of porphyrin-sensitised titania films using bis-(4-methoxyphenyl) phosphinic acid after dye adsorption, results in large improvements in DSSC efficiencies which originate primarily from higher short circuit currents. The result
Alessandra Allegrucci   +35 more
core   +2 more sources

Analysis of the Processes of Short-Currents Limiting by Transformer with High-Temperature Superconducting Windings [PDF]

open access: yesProblems of the Regional Energetics, 2017
An important advantage of transformers with high-temperature superconducting winding is their ability to limit the short-circuit currents. The article discusses a physico-mathematical model that analyses transient processes at short-circuit currents in ...
Manusov V.Z.   +2 more
doaj  

Stability Improvement of The Iraqi Super Grid (400kV) using High Voltage Direct Current (HVDC) Transmission

open access: yesJournal of Engineering, 2021
This research analyzes the level of the short circuit effect of the Iraqi super network and decides the suitable location for the High Voltage Direct Current (HVDC) connections in order to obtain the best short circuit reduction of the total currents of ...
Zainab Nadhim Abbas   +1 more
doaj   +1 more source

Research on Measures to Limit Short-Circuit Current by Changing the Structure of the Power Grid

open access: yesEnergies
This paper addresses the increasingly severe issue of excessive short-circuit currents brought about by the rapid development of large power grids. The working principles of structural changes in the grid as a means of limiting currents are studied, and ...
Shuqin Sun   +5 more
doaj   +1 more source

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