Arc Voltage and Current Characteristics in Low-Voltage Direct Current

Wooho Kim, Yong-Jung Kim and Hyosung Kim
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Wooho Kim: Division of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea
Yong-Jung Kim: Division of Electrical, Electronic and Control Engineering, Kongju National University, 275 Budae, Cheonan, Chungnam 310-80, Korea
Hyosung Kim: Division of Electrical, Electronic and Control Engineering, Kongju National University, 275 Budae, Cheonan, Chungnam 310-80, Korea

Energies, 2018, vol. 11, issue 10, 1-14

Abstract: Recently, Low-Voltage DC (direct current) distribution systems have received high lights according to the expansion of DC generations and DC loads such as photovoltaics (PV) generations, electric vehicles (EVs), light emitting diodes (LEDs), computers, DC homes, etc. Low-Voltage DC distribution systems have optimistic perspectives since DC has various good aspects compared to alternating current (AC). However, ensuring safety of human and electric facility in Low-Voltage DC is not easy because of arc generation and difficulty of arc-extinguishing. This paper constructs a low-voltage DC circuit and studies the arc interruption that occurs when separating electrodes from where load currents flow. Also, arc extinguishers are experimented upon and analysed in various levels of source voltage and load currents conditions. Voltage and current characteristics for arc interruption are identified based on experimental results, and we establish the electric generation for arc interruption. Further, the voltage–current characteristics and the correlation of arc during arc duration time arc are verified, and the voltage–current equation and DC arc resistance model for the breaking arc are developed.

Keywords: arc characteristic; arc-extinguisher; DC arc model; DC distribution system; Low-Voltage DC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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