The paper “Experience in monitoring geomagnetically induced currents in the Altai republic power grid” has been published in Solar-Terrestrial Physics Journal

One of the authors is the Senior Researcher of Paratunka Complex Geophysical Observatory of IKIR FEB RAS, Cand. Sci. (Tech.). Gvozdarev Aleksey Yurevich

The paper is devoted to the description of a device for measuring geomagnetically induced currents (GISs). The device is installed at the Ininskaya power substation in the Altai Republic. Since April 2024, periodic monitoring of GIS in the 110 kV power transformer grounding neutral has been carried out.

GISs were registered during geomagnetic disturbances up to 138 mA, which, taking into account the parallel grounding of the Ininskaya substation and the Ininskaya solar power plant, means the presence of 1.3 A total GIS in the grounding of both objects. GISs are shown to occur during Pc3 and Pc5 geomagnetic pulsation observations.

The qualitative agreement has been found between the GIC measurement results and the model values calculated from Baigazan magnetic station data in the approximation of the homogeneous Earth’s crust conductivity. The grounding resistance is shown to exert an effect on recorded GICs.

Full text of the paper is available at: https://naukaru.ru/en/nauka/article/89176/view