Registration of GIC in Power Systems of the Kola Peninsula

Auroral Omega Bands are a Significant Cause of Large Geomagnetically Induced Currents

“…Each station records a quasi‐DC current with a 10 Hz sampling rate (we use 1 min averages) in the dead‐grounded neutral line of the transformer. These four stations were established for a systematic monitoring of GIC (Barannik et al, ; Sakharov et al, , ).…”

“…A GIC measurement system was deployed at "Federal Grid Company" power lines at Kola Peninsula and Karelia in 2011 by the Polar Geophysical Institute (Murmansk) and Center for Physical and Technical Problems of Northern Energetics, Kola Science Center of the Russian Academy of Sciences (Apatity) during the FP7/EURISGIC project (2007Viljanen et al 2012). The system includes four stations at the 330 kV power line and one station at the 110 kV power line (see marks on the map in Figure 2b).…”

“…Each station records a quasi-DC current with a 10 Hz sampling rate (we use 1 min averages) in the dead-grounded neutral line of the transformer. These four stations were established for a systematic monitoring of GIC (Barannik et al, 2012;Sakharov et al, 2007Sakharov et al, , 2009. Ground magnetic field observations are available from the Russian Lovozero magnetometer (LOZ) in close proximity to the GIC stations VKH and RVD.…”

Observations of Geomagnetic Induced Currents in Northwestern Russia: Case Studies

“…At each substation uses Hall sensors that directly measure the currents flowing into the ground through the grounded neutral wire of autotransformers. Positive values mean GICs going into the ground (Sakharov et al, 2007;2016;Barannik et al, 2012;Selivanov et al, 2023). We use also the data from the east-west aligned gas pipeline station located near Mäntsälä, Finland (https://space.fmi.fi/gic/index.php).…”

“…Kelly et al, 2017;Mac Manus et al, 2017;Clilverd et al, 2021;Watari et al, 2021). In the north-west of Russia, the Polar Geophysical Institute together with Northern Energetic Research Centre in the frame of EC grant EURISGIC (2011-2014) built a system for monitoring such currents in the solidly grounded neutral wire of autotransformers in the existing Karelian-Kola power transmission line (Viljanen, 2011;Viljanen et al, 2012;Sakharov et al, 2007;2016;Selivanov et al, 2023).…”