Results 11 to 20 of about 33,387 (219)

Comparison between peak values of induction motor currents’ waveforms during nearby three‐phase short‐circuits and results from standardized calculations

open access: yesIET Generation, Transmission & Distribution, 2023
This article shows a comparison of peak values of measured and computed waveforms of induction motor currents during nearby three‐phase short circuits with the results from the standardized calculations of those currents.
Elmer Sorrentino, Andres Vera
doaj   +1 more source

Detection of Irregular Sheath Current Distribution for Diagnosis of Faults in Grounding Systems of Cross-Bonded Cables

open access: yesIEEE Access, 2023
Sheath currents in high voltage cable circuits have proven to be one of the most convenient indicators for assessing cable health. The sheath currents are regularly distributed with fluctuation in a certain range under normal conditions, while the ...
Gen Li   +5 more
doaj   +1 more source

Improved equation to describe the induction motor currents during nearby three‐phase short‐circuits

open access: yesIET Electric Power Applications, 2023
This article shows an improved equation to describe the induction motor currents during a three‐phase short‐circuit near to motor terminals. The proposed equation considers three details which are not in the equation shown in the IEEE Std.
Elmer Sorrentino, Andres Vera
doaj   +1 more source

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

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

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

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

Application of Artificial Neural Network-Based Tool for Short Circuit Currents Estimation in Power Systems With High Penetration of Power Electronics-Based Renewables

open access: yesIEEE Access, 2023
The increasing integration of Power Electronics (PE)-based renewable energy sources into the electric power system has significantly affected the traditional levels and characteristics of fault currents compared to the ones observed in power systems ...
Rafat Aljarrah   +6 more
doaj   +1 more source

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  

Home - About - Disclaimer - Privacy