Results 11 to 20 of about 3,456 (197)
IEEE Access, 2020 Geomagnetically induced current (GIC) has been a significant concern for the electrical power grid in high latitudes for decades. Its origin starts in the Sun; during extreme space weather, the magnetic field of the Earth varies rapidly.
Zmnako Mohammed Khurshid Abda +3 more
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MachinesDuring geomagnetic storms, a geomagnetically induced current (GIC) flows into grounding transformers, potentially causing anomalous vibrations and audible noise in internal components.
Jingge An, Chao Pan, Xiaobo Shi
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Statistical analysis of geomagnetically induced current data measured around Tokyo, Japan
Earth, Planets and SpaceWe started measuring geomagnetically induced current (GIC) in substations around Tokyo, Japan in 2017 to study the GIC effects on power systems. We defined a period with GIC continuously exceeding 3 A as a GIC event to analyze the long-term data.
Shinichi Watari +2 more
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Diagnostics of geomagnetically-induced currents in high-tension electric transmission lines [PDF]
E3S Web of Conferences, 2019 The problem of geomagnetically-induced currents (GIC) effect on electrotechnical systems is topical as long as uninterrupted power distribution is critically important for all the spheres of human activity.
Sivokon Vladimir +2 more
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Database of geomagnetically induced currents in the main transmission line “Northern Transit”
Solar-Terrestrial Physics, 2023 Database containing the results of measurements of geomagnetically induced currents (GIC) for the period of 2011 to 2022 in transformer neutrals at three 330 kV substations of the main power transmission lines “Northern Transit” passing through the ...
Selivanov V. N. +4 more
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First-principles modeling of geomagnetically induced electromagnetic fields and currents from upstream solar wind to the surface of the Earth [PDF]
Annales Geophysicae, 2007 Our capability to model the near-space physical phenomena has gradually reached a level enabling module-based first-principles modeling of geomagnetically induced electromagnetic fields and currents from upstream solar wind to the surface of the Earth.
A. Pulkkinen +5 more
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The Impact of Geomagnetically Produced Negative-Sequence Harmonics on Power Transformers
IEEE Access, 2021 Geomagnetically induced currents (GICs), although small in magnitude, can inflict detrimental effects on power systems. GICs damage transformers, generate unusual harmonics, trip reactive power support equipment, cause protective relays to malfunction ...
Ahmed Abuhussein +1 more
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Space Weather, 2023 We propose a novel approach to model the ground electric field (GEF) induced by laterally‐nonuniform ionospheric sources in real time. The approach exploits the multi‐site transfer function concept, continuous magnetic field measurements at multiple ...
Mikhail Kruglyakov +4 more
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Analysis of Long‐Term GIC Measurements in Transformers in Austria
Space Weather, 2022 Geomagnetically induced currents (GICs), a result of solar wind interaction with the Earth's magnetic field and the resistive ground, are known to flow in power transmission grids, where they can lead to transformer damage and grid operation problems. In
D. Albert +4 more
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Geomagnetically Induced Currents at Middle Latitudes: 1. Quiet‐Time Variability
Space Weather, 2022 Geomagnetically induced currents (GICs) at middle latitudes have received increased attention after reported power grid disruptions due to geomagnetic disturbances. However, quantifying the risk to the electric power grid at middle latitudes is difficult
Adam C. Kellerman +11 more
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