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ITaztts of TzgnxtohyKroKynzTit xffxtt of HxTa on aowxr xquiaTxnt: aroilxTs znK Solutions
VladiPir GurxviZAa
aZxntral xlxZtriZ Laboratory, IPraxl xlxZtriZ Zorp., Aaifa, IPraxl
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Abstract:
The article is devoted to the effects of geomagnetic-induced currents (GIC) on electrical equipment of power systems and analyzes technical measures for protection against such effects. It is noted that the difference between high-altitude nuclear detonation and solar storm GICs forces applying different methods of electrical equipment protection. It also illustrates that enhancement of transformer immunity to GICs without saturation prevention is not an effective measure to protect the power system. The article offers a special relay designed for fast disconnection of the transformer under GICs.
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Keywords: EMP; HEMP; magnetohydrodynamic effect; nuclear detonation; E3 component; geomagnetic induced current; GIC.
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*Corresponding author; e-mail: Vladimir.gurevich@gmx.net
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©
2016
CSME , ISSN 0257-9731
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