Title:	A New Way of Protection of the Transmission Power System Against the Effects of Magnetic Storms
Authors:	Mayer, Daniel
Citation:	MAYER, D. A New Way of Protection of the Transmission Power System Against the Effects of Magnetic Storms. Journal of Geography and Natural disasters, 2022, roč. 12, č. 3, s. 1-4. ISSN: 2167-0587
Issue Date:	2022
Publisher:	Longdom Publishing
Document type:	článek article
URI:	http://hdl.handle.net/11025/51472
ISSN:	2167-0587
Keywords in different language:	geomagnetic field;coronal mass ejection;geomagnetically induced currents;magnetic semi- saturation;frequency filter
Abstract in different language:	Severe collapses caused by anomalies in the Earth's magnetosphere, known as geomagnetic storms, have been reported in the operation of transmission power systems. A semi-saturating phenomenon occurs in which geomagnetic currents are induced very in high voltage lines, which cause the power transformers of the system to be overloaded with current and subsequently also thermally. The presented article describes a device that will either completely eliminate or at least significantly reduce the possibility of a power transformer accident. The essence of this device are frequency filters, which are automatically connected in parallel to the vhv windings of the power transformers at the beginning of the magnetic storm and are disconnected after the storm subsides. The online information about the effect of the magnetic storm on the system is provided by the indicator to the control workplace.
Rights:	© author
Appears in Collections:	Články / Articles (KEP) OBD

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