Effect of load current on leakage flux of transformer with geomagnetically induced current

2010 ◽  
Vol 21 (1) ◽  
pp. 165-173 ◽  
Author(s):  
Bing Zhang ◽  
Yilu Liu ◽  
Lianguang Liu ◽  
Mark McVey ◽  
R. Matthew Gardner ◽  
...  
2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Shinichi Watari ◽  
Satoko Nakamura ◽  
Yusuke Ebihara

AbstractWe need a typical method of directly measuring geomagnetically induced current (GIC) to compare data for estimating a potential risk of power grids caused by GIC. Here, we overview GIC measurement systems that have appeared in published papers, note necessary requirements, report on our equipment, and show several examples of our measurements in substations around Tokyo, Japan. Although they are located at middle latitudes, GICs associated with various geomagnetic disturbances are observed, such as storm sudden commencements (SSCs) or sudden impulses (SIs) caused by interplanetary shocks, geomagnetic storms including a storm caused by abrupt southward turning of strong interplanetary magnetic field (IMF) associated with a magnetic cloud, bay disturbances caused by high-latitude aurora activities, and geomagnetic variation caused by a solar flare called the solar flare effect (SFE). All these results suggest that GIC at middle latitudes is sensitive to the magnetospheric current (the magnetopause current, the ring current, and the field-aligned current) and also the ionospheric current.


Space Weather ◽  
2020 ◽  
Vol 18 (8) ◽  
Author(s):  
T. Divett ◽  
D. H. Mac Manus ◽  
G. S. Richardson ◽  
C. D. Beggan ◽  
C. J. Rodger ◽  
...  

Space Weather ◽  
2017 ◽  
Vol 15 (8) ◽  
pp. 1020-1038 ◽  
Author(s):  
Daniel H. Mac Manus ◽  
Craig J. Rodger ◽  
Michael Dalzell ◽  
Alan W. P. Thomson ◽  
Mark A. Clilverd ◽  
...  

Space Weather ◽  
2021 ◽  
Author(s):  
Han Wang ◽  
Zan‐Yang Xing ◽  
Nanan Balan ◽  
Yan‐Ling Wang ◽  
Qing‐He Zhang ◽  
...  

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 200237-200258
Author(s):  
Zmnako Mohammed Khurshid Abda ◽  
Nur Fadilah Ab Aziz ◽  
Mohd Zainal Abidin Ab Kadir ◽  
Zeti Akma Rhazali

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