Results 21 to 30 of about 3,583,049 (117)

Forecasting GIC Activity Associated With Solar Wind Shocks for the Australian Region Power Network

Space Weather, 2022
s Space weather induced Geomagnetically Induced Currents (GICs) that are hazardous to power networks at high latitudes are often the result of rapid changes in near‐Earth space current systems such as the auroral electrojets and field‐aligned currents ...
R. A. Marshall, E. A. Pearce, C. L. Waters, M. Terkildsen   +3 more
doaj   +1 more source

Estimation of Geomagnetically Induced Currents (GICS) in the Namibian transmission network [PDF]

, 2013
Includes bibliographical references.Geomagnetically Induced Currents (GICs) have become a matter of concern not only to networks located in high magnetic latitude regions but also in networks located in mid-latitude regions.
Simon, Magnaem Ngendina
core   +1 more source

Investigation of the Geomagnetically Induced Current Index Levels in the Mediterranean Region During the Strongest Magnetic Storms of Solar Cycle 24

Space Weather, 2023
Geomagnetically induced currents (GICs) constitute an integral part of space weather research and are a subject of ever‐growing attention for countries located in the low and middle latitudes.
A. Z. Boutsi, G. Balasis, S. Dimitrakoudis, I. A. Daglis, K. Tsinganos, C. Papadimitriou, O. Giannakis   +6 more
doaj   +1 more source

Optimal Blocking Devices Placement for Geomagnetic Disturbance Mitigation Based on Sensitivity of Induced Geoelectric Fields

IEEE Access, 2022
When geomagnetic storms occur, geomagnetically induced currents (GICs), as a kind of quasi-DC, flow through the transformer and cause the increase of reactive power loss ( $Q_{\mathrm {GIC}}$ ). Several mitigation actions (e.g., changing grid topology or
Wang Shengquan, Wu Yiming, Sun Yongjun, Cheng Jun, Wei Chao   +4 more
doaj   +1 more source

The response of transformers to geomagnetically induced- like currents [PDF]

, 2014
Includes bibliographical references.This dissertation discusses the development and implementation of a rigorously developed protocol for characterizing and testing transformers with GIC-like currents based on their magnetization curve characteristics ...
Chisepo, Hilary K
core   +1 more source

Spatial scale of geomagnetic Pc5/Pi3 pulsations as a factor of their efficiency in generation of geomagnetically induced currents

Earth, Planets and Space, 2021
Geomagnetically induced currents (GICs) in a quasi-meridional power transmission line on the Kola Peninsula are analyzed during the intervals of Pc5/Pi3 (frequency range from 1.5 to 5 mHz) pulsations recorded at the IMAGE magnetometer network.
Nadezda V Yagova, Vyacheslav A Pilipenko, Yaroslav A Sakharov, Vasily N Selivanov   +3 more
doaj   +1 more source

Comparison of methods for modelling geomagnetically induced currents [PDF]

Annales Geophysicae, 2014
Assessing the geomagnetic hazard to power systems requires reliable modelling of the geomagnetically induced currents (GIC) produced in the power network.
D. H. Boteler, R. J. Pirjola, R. J. Pirjola   +2 more
doaj   +1 more source

A New Standalone Tool for DC‐Equivalent Network Generation and GIC Calculation in Power Grids With Multiple Voltage Levels

Space Weather, 2022
Space Weather phenomena pose a major socio‐economic threat due, in part, to the vulnerability of power network transformers to geomagnetically induced currents (GIC).
S. Marsal, J. M. Torta, V. Canillas‐Pérez, J. J. Curto   +3 more
doaj   +1 more source

Geomagnetically Induced Current-Monitoring Method Based on High Voltage Wires for Transformers

IEEE Access, 2022
Hall sensors have a relatively low withstand voltage but have been used at the neutral point of transformers to monitor geomagnetically induced currents (GICs).
Chun-Hui Gao, He Gao, Wen-Lin Liu, Hai-Peng Shi, Si-Tong Yan, Qian-Ran Zhang   +5 more
doaj   +1 more source

Statistical relationships between variations of the geomagnetic field, auroral electrojet, and geomagnetically induced currents

Solar-Terrestrial Physics, 2019
Using observations from the IMAGE magnetic observatories and the station for recording geomagnetically induced currents (GIC) in the electric transmission line in 2015, we examine relationships between geomagnetic field and GIC variations.
Vorobev A.V., Pilipenko V.A., Sakharov Ya.A., Selivanov V.N.   +3 more
doaj   +1 more source