International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Vladimir Gurevich*

Central Electric Laboratory, Israel Electric Corp., Haifa, Israel


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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.

Keywords: EMP; HEMP; magnetohydrodynamic effect; nuclear detonation; E3 component; geomagnetic induced current; GIC.

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[1] Gurevich, V. 2015. “Cyber and Electromagnetic Threats in Modern Relay Protection”. CRC Press. Boca Raton. U.S.A.

[2] Westinghouse Electric Corporation. 1985. “Study to Access the Effects of Magnetohydrodinamic Electromagnetic Pulse on Electric Power Systems” (ORNL/Sub-83/43374/1/v). Oak Ridge National Laboratory. Oak Ridge. U.S.A.

[3] International Electrotechnical Commission. 1996. “Electromagnetic Compatibility (EMC) - Part 2: Environment - Section 9: Description of HEMP Environment-Radiated Disturbance” (IEC 61000-2-9). International Electrotechnical Commission. Geneva. Switzerland.

[4] Gilbert, J., Kappenman, J., Radasky, W., and Savage, E. 2010. “The Late-Time (E3) High-Altitude Electromagnetic Pulse (HEMP) and Its Impact on the U.S. Power Grid” (Meta-R-321). Oak Ridge National Laboratory. Oak Ridge. U.S.A.

[5] Gurevich, V. 2003. “Protection Devices and Systems for High-Voltage Applications”. Marcel Dekker. New York. U.S.A.


Received: 2015-05-08
Revised: 2016-03-11
Accepted: 2016-03-15
Available Online: 2016-03-15

Cite this article:

Gurevich, V. 2016. Impacts of magnetohydrodynamic effect of HEMP on power equipment: Problems and solutions. International Journal of Applied Science and Engineering, 14, 49–58.

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