Energies, 2019 HVDC cable systems connected to HVDC overhead lines are subject to fast front overvoltages emanating from the line when lightning strikes a shield wire (backflashover) or a pole conductor (shielding failure).
Oscar Lennerhag +4 more
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Improve hardware facilities and work algorithms of overhead contact line remote monitoring systems [PDF]
E3S 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
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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
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On-line Monitoring of Sag and Icing of Overhead Transmission Lines
Journal 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
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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. +2 more
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Nonintrusive overhead‐line current detection using a vertical magnetic‐field sensor array
IET 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
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Influence of contact gaps on the conditions of vehicles supply and wear and tear of catenary wires in a 3 kV DC traction system [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 Short-term contact losses between a pantograph and a contact wire are not included in the standards nor are they taken into account in evaluating pantograph-contact wire interaction.
T. Maciołek +3 more
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Evaluation of the Idle time of Single-Chain and Double-Chain Overhead Power Lines of 6–10 kV by Methods of Queuing Theory [PDF]
Problems 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.
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Research on Overhead Line Cost Prediction Based on Index Construction [PDF]
E3S 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
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Normalization of double-circuit overhead line magnetic field inside Khrushchev building
Electrical engineering & Electromechanics, 2021 This paper deals with the mitigation of 110 kV double-circuit overhead line magnetic field inside five-story Khrushchev buildings. We show that the magnetic field can exceed the reference level 0.5 μT in 90 % part of living space.
K. V. Chunikhin, V. S. Grinchenko
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