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Numerical Calculation of Overhead Power Lines Dynamics [PDF]

Journal of Mechanical Engineering, 2016
This paper contains results of transient analysis of airflow around the ACSR power line cross-section in unsymmetric multi-span. The forces applied to the power line are obtained from CFD simulations, where the wind induced vibration is studied.
Gogola Roman, Murín Justín, Hrabovský Juraj   +2 more
doaj   +2 more sources

Method for Calculating of Lightning Impact Level on Overhead Transmission Line

Applied Sciences, 2021
This paper proposes a simple method for calculating the lightning impact level on overhead transmission power lines, taking into account its entire length. The method uses lightning historical data and the geographic coordinates of power line towers.
Anton Vladimirovich Burtsev, Vasily Nikolaevich Selivanov   +1 more
doaj   +1 more source

Study of the influence of the parameters of modern grounding wires on the value of power losses in them for overhead power lines of 330-750 kV

Electrical engineering & Electromechanics, 2023
Introduction. The problem of estimating power losses in grounding wires with built-in fiber optic cable for overhead power lines of voltage class 330-750 kV is relevant, while it is obvious that the amount of losses depends on the chosen brand of wire ...
A. V. Krasnozhon, A. O. Kvytsynskyi, R. O. Buinyi, I. V. Dihtyaruk, O. V. Krasnozhon   +4 more
doaj   +1 more source

Characteristics of lightning‐induced voltages based on experimental data

High Voltage, 2021
This paper presents an analysis of 64 lightning‐induced voltage waveforms recorded in an experimental system implemented in the campus of the University of São Paulo, Brazil.
Michele N. N. Santos, Alexandre Piantini
doaj   +1 more source

Mathematical Model for Determination of EMF and Current Induced in the Loop of Lighting Protection Cable by Magnetic Fields of 220 KV Phase Currents

Российская Арктика, 2022
The electrical grid of regional power systems primarily uses double-circuit 220 kV overhead power lines to function. This paper provides information on the problem of ice formation on overhead ground wires of 220 kV power lines, including a brief ...
Krotkov E.A., Besmenova N.V., Shchobak A.A.   +2 more
doaj   +1 more source

Estimating the Error of Fault Location on Overhead Power Lines by Emergency State Parameters Using an Analytical Technique

Energies, 2023
Fault location on overhead power lines achieved with the highest possible accuracy can reduce the time to locate faults. This contributes to ensuring the stability of power systems, as well as the reliability of power supply to consumers.
Aleksandr Kulikov, Pavel Ilyushin, Konstantin Suslov, Sergey Filippov   +3 more
doaj   +1 more source

Breakage Mechanism Study of Overhead Ground Wire Under Lighting Stroke Based On Finite Element Analysis [PDF]

E3S Web of Conferences, 2021
Breakage of overhead transmission lines and distribution lines will lead to severe power outage problems, and clarifying the breakage mechanism of the overhead lines is of great importance and value for the reliability and stability of the power system ...
Xia Yunfeng, Kuang Fan, Yang Ting, Chen Guanhao, Yang Rui   +4 more
doaj   +1 more source

Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility

Energies, 2023
To supply stable and high-quality power according to the advancement of industrial growth, electric power companies have performed maintenance of power facilities using various methods.
Hyeseon Lee, Byungsung Lee, Gyurim Han, Yuri Kim, Yongha Kim   +4 more
doaj   +1 more source

Study on icing and its trip laws of transmission lines in Shanxi Power Grid [PDF]

E3S Web of Conferences, 2021
Overhead transmission lines are important carriers of electric energy transmission. Their icing, galloping and shedding in winter and spring seriously threatened the safe operation of Shanxi power grid.
Zhao Bin, Zhang Li-chun, Yang Jia-lun, Ji Kun-peng   +3 more
doaj   +1 more source

MONITORING OF OVERHEAD POWER LINES.

, 2022
Monitoring of overhead power lines allows you to control their integrity and serviceability, to detect defects. For this, 3D reconstruction technologies, neural networks and computer vision are used - they allow you to collect a large list of design parameters, generate reports and defective statements.
Togayev Islom, Togayev Islom, Eshmirzayev Mirzohid   +2 more
openaire   +1 more source