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Bhandia, R. (author), de Jesus Chavez, Jose (author), Cvetkovic, M. (author), Palensky, P. (author)High Impedance Fault (HIF) is a low fault current event which cannot always be efficiently detected or cleared by conventional protection systems. Voltage or current signal distortions are often a possible indicator of HIF signatures which need to be carefully analyzed. This paper proposes a new technique based on second-difference approach to...conference paper 2018