Results 1 to 10 of about 469,763 (187)

Improve hardware facilities and work algorithms of overhead contact line remote monitoring systems [PDF]

open access: yesE3S Web of Conferences, 2022
An autonomous diagnostic measuring device, that allows to reduce expenses for the maintenance and the need for highly qualified personnel, is proposed in the article.
Smerdin Aleksandr   +3 more
doaj   +1 more source

Evaluation of the Idle time of Single-Chain and Double-Chain Overhead Power Lines of 6–10 kV by Methods of Queuing Theory [PDF]

open access: yesProblems of the Regional Energetics, 2022
The aim of this work is to substantiate the idle time evaluation of the overhead power line (OPL) according to the reliability indicators of its main elements using the probability value of the overhead power line availability factor. Statistical studies
Basmanov V.G., Kholmanskikh V.M.
doaj   +1 more source

Application of ANFIS Technique for Wide-Band Modeling of Overvoltage of Single-Conductor Overhead Lines with Arrester above Dispersive and Two-Layer Soils [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
In this paper, an efficient closed-form expression for overvoltage of overhead lines under direct strike in the presence of lightning arresters is presented.
Saeed Reza Ostadzadeh
doaj   +1 more source

Characteristics of lightning‐induced voltages based on experimental data

open access: yesHigh 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

On-line Monitoring of Sag and Icing of Overhead Transmission Lines

open access: yesJournal of Harbin University of Science and Technology, 2023
In order to realize on-line icing and galloping monitoring of overhead transmission lines, an on-line monitoring method for overhead transmission lines based on phase-sensitive optical time domain reflectometry (Φ-OTDR) is proposed.
YANG Xiaolong   +4 more
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

open access: yesРоссийская 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.   +2 more
doaj   +1 more source

Nonintrusive overhead‐line current detection using a vertical magnetic‐field sensor array

open access: yesIET Generation, Transmission & Distribution, 2023
With the growing infrastructure for overhead lines, the demand for overhead‐line condition‐monitoring technologies has become increasingly urgent. Traditional current transformers used to measure three‐phase currents are bulky and difficult to install ...
Kun‐Long Chen   +2 more
doaj   +1 more source

Research on Overhead Line Cost Prediction Based on Index Construction [PDF]

open access: yesE3S Web of Conferences, 2019
In order to meet the growing demand of the society for electric power, the construction of electric power infrastructure is constantly carried out. However, investment in construction and cost control are particularly important.
He Yongping   +4 more
doaj   +1 more source

Method for Calculating of Lightning Impact Level on Overhead Transmission Line

open access: yesApplied 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   +1 more
doaj   +1 more source

Autonomous Live-Line Maintenance Robot for a 10 kV Overhead Line

open access: yesIEEE Access, 2021
Live work is a dangerous and complex operation that endangers the lives of operators. This paper presents an autonomous live-line maintenance robot (ALMR), which is applied to 10 kV overhead lines.
Jiabo Feng, Weijun Zhang
doaj   +1 more source

Home - About - Disclaimer - Privacy