INDUCTION CURRENTS IN HVAC NETWORKS UNDER EARTH MAGNETIC FIELD DISTURBANCE

Authors

  • Valerii Valentynovych Kyryk Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського», Ukraine https://orcid.org/0000-0003-0419-8934
  • Vadym Ihorovych Mossakovskyi Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського», Ukraine

DOI:

https://doi.org/10.20535/1813-5420.2.2012.157035

Keywords:

activity of the sun, solar wind, geomagnetic storm, geomagnetic induced current, earth surface potential, saturation, harmonic spectrum, local overheating

Abstract

It is analyzed of a magnetic field disturbance of Earth and its influence on a power supply system. The formation mechanism of geomagnetic induced currents which can render subzero influence on communication is considered, including on extended high-voltage electric networks. This influence is taken to the negative effects such as the half-cycle saturation of power transformer and half-cycle saturation of current transformer because in compare to the alternating currents frequency the GIC can be considered direct currents.

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