Fault Analysis Method in Case of Arc and Leakage Current in Smart Grid Systems

Smart grid systems that develop near consumers are attracting attention due to the expansion of the scale of new and renewable energy and technological advances, such as PV energy generation systems. The smart grid system has the advantage of developing by exchanging information in real time using electricity and information and communication technology, but because it is located near the consumer, it can cause a lot of human and property damage such as fire and electric shock. Excluding accidents caused by unidentified short circuits among electrical accidents, accidents caused by arcs and leakage currents occur frequently, and it is necessary to ensure safety in power distribution technology. Therefore, this paper studied circuit fault analysis using signal processing technology and monitoring system in the event of leakage current of 1-10 mA in arcs and positive ( +) or negative (-) lines generated at 1 similar to 1500 V in accordance with the current low-voltage direct current (LVDC) technology.