Science and technological developments: article

V.V. Kolobov M.B. Barannik V.V. Ivonin
Northern Energetics Research Centre – Branch of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences” NERC KSC RAS
Journal: Science and technological developments
Tome: 101
Number: 2
Year: 2022
Pages: 23-32
UDK: 550.837.61+ 550.837.63+550.837.211
DOI: 10.21455/std2022.2-3
Keywords: electromagnetic sounding, controlled current source, ELF-ULF radiation, overhead power line, pulse width modulated inverter, matching unit
Аnnotation: In the FENICS experiments performed in 2007, 2009, 2014 and 2019 under the guidance of A.A. Zhamaletdinov received unique data of deep electromagnetic sounding with grounded sections of industrial overhead power lines (OHPL) at distances from 180 to 840 km from the center of the supply line to the measuring installation. At the stages of 2014 and 2019, the components of the electromagnetic field and the current strength in the source were recorded with the measuring equipment VMTU-10 (VEGA LLC, SPb), which made it possible to perform synchronous processing of measurement data with GPS reference. Unlike the previ-ous stages, in 2019 L-403 (Murmansk–Nikel) was used as a source of the sub latitudinal direction, which differs in a number of parameters from the L-401 previously used for these purposes. The paper describes the main fea¬tures of the generation of ELF-ULF radiation for geophysical research using industrial power lines.
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