Results 21 to 30 of about 3,587,742 (160)

Geomagnetically induced currents in Norway: the northernmost high-voltage power grid in the world

open access: yesJournal of Space Weather and Space Climate, 2014
We have derived comprehensive statistics of geomagnetic activity for assessing the occurrence of geomagnetically induced currents (GIC) in the Norwegian high-voltage power grid.
Myllys Minna   +3 more
doaj   +1 more source

Regional estimation of geomagnetically induced currents based on the local magnetic or electric field

open access: yesJournal of Space Weather and Space Climate, 2015
Previous studies have demonstrated a close relationship between the time derivative of the horizontal geomagnetic field vector (dH/dt) and geomagnetically induced currents (GIC) at a nearby location in a power grid.
Viljanen Ari, Wintoft Peter, Wik Magnus
doaj   +1 more source

Analysis of Large Geomagnetically Induced Currents During the 7–8 September 2017 Storm: Geoelectric Field Mapping

open access: yesSpace Weather, 2023
High temporal and high spatial resolution geoelectric field models of two Mäntsälä, Finnish pipeline geomagnetically induced current (GIC) intervals that occurred within the 7–8 September 2017 geomagnetic storm have been made.
Anna Wawrzaszek   +4 more
doaj   +1 more source

Observations from SANSA’s geomagnetic network during the Saint Patrick’s Day storm of 17–18 March 2015

open access: yesSouth African Journal of Science, 2019
Geomagnetic storms are space weather events that result in a temporary disturbance of the earth’s magnetosphere caused by a solar wind that interacts with the earth’s magnetic field.
Emmanuel Nahayo   +3 more
doaj   +1 more source

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

open access: yes, 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

A multi-objective reactive power optimization strategy for mitigating voltage fluctuation in power network caused by geomagnetic storm

open access: yesAdvances in Mechanical Engineering, 2017
Geomagnetically induced currents through the transformer windings produce biases of transformers, increase transformer reactive power losses, and lead to a significant lack of reactive power support in the power system.
Pei-Hong Yang   +4 more
doaj   +1 more source

Geomagnetically Induced Currents at Middle Latitudes: 1. Quiet‐Time Variability

open access: yesSpace 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
doaj   +1 more source

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

open access: yes, 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

The Response of Ionospheric Currents to External Drivers Investigated Using a Neural Network‐Based Model

open access: yesSpace Weather, 2023
A predictive model for the variation of ionospheric currents is of great scientific and practical importance to our modern industrial society. To study the response of ionospheric currents to external drivers including geomagnetic indices and solar ...
Xin Cao   +6 more
doaj   +1 more source

Assessment of Geomagnetically Induced Currents Impact on Power Grid Modelling

open access: yesMagnetism, 2023
Recent history demonstrates that threat has no borders, though risk does, due to national and regional differences in vulnerabilities and exposure landscapes. The difference between well and poorly managed threat is striking.
Stanislav Gritsutenko   +3 more
doaj   +1 more source

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