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DIRECTED
ENERGY
PROFESSIONAL
SOCIETY
Abstract: 24-Symp-054
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UNCLASSIFIED, PUBLIC RELEASE
Hazard Analysis of DC Arc Flash from Electrochemical Prime Power
Hazards from an arc flash event result in most electrical injuries and fatalities in cases where proper preventative measures are not taken. Present and future directed energy systems employ electrochemical prime power and the arc flash hazards they introduce are not well understood. Efforts to understand arc flash have been studied in AC systems but not extensively for DC sources like lithium-ion batteries and capacitors. This lack of understanding results in personal protective equipment being prescribed to operators of these systems that could be far too little or even far too much. An ongoing research effort by the University of Texas at Arlington is being performed to characterize arc flash hazards from electrochemical prime power. A series of experiments studying DC arc flash events induced by electrochemical energy storage have been performed with devices assembled at voltages as high as 500 VDC and pulsed power capacitors operating at voltages as high as 8 kVDC. This work will discuss the experimental setup, the experiments performed, and analysis of hazards to date.
•This effort was funded through ONR Grant N00014-21-1-2783, by NAVSEA CPSD through Naval Engineering Education Consortium Grant N00174-22-1-0023, and by the Directed Energy Professional Society (DEPS) in the form of a scholarship. The opinions and findings here are those of the authors and may not reflect the views and opinions of the sponsors.
UNCLASSIFIED, PUBLIC RELEASE
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