Risk Analysis for Large Power Transformers in Solar Storms

Alan S. Hoback, Algird Szumlas

University of Detroit Mercy Report, Dept. of Civil, Architectural & Environmental Engr., vol. 2019(8), 2019/08/15, pp. 1-4.


Large power transformers (LPTs) are a vital component of the electrical grid system. Solar flares induce currents in long conductors such as transmission lines that connect LPTs. These currents have caused damage in the electrical grid in the past. Considering that the last major solar flare to hit the earth was pre-electric grid, the grid is unprepared. Therefore, the U.S. economy is at risk from damage. LPTs can be replaced with newer units that can resist damage. The alternatives of LPT replacement versus the null case are compared to show the economic advantages of proactive planning.

Link to full paper.


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