• Common and differential mode of dc-bias in three-phase power transformers 

      Wang, Wei; Nysveen, Arne; Magnusson, Niklas (Peer reviewed; Journal article, 2022)
      Dc magnetization due to the geomagnetically induced currents (GICs) and HVDC (High Voltage Direct Current) systems may cause core saturation and result in serious destruction in the transformer performance as well as the ...