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<p>Arcs are generated by various electrical factors in electrical industry sites, causing fire and explosion accidents. It is difficult to secure the safety of such arcs with conventional main circuit breakers (MCBs) and fuses used in industrial sites. The current and harmonic analysis method used in the conventional arc detection method has a problem: it is difficult to identify the arc under certain nonlinear loads, such as the thyristors used in dimming lamps. In this study, the noise generated during arcs is extracted and amplified from areas outside the interference of background noise such as ambient device noise and biological noise. It is then converted into a received signal strength indicator (RSSI). Thereafter, we present serial arc detection technology in an AC system using a frequency analysis method that utilizes the Goertzel algorithm, leveraging the fact that the RSSI value has a 120&#xa0;Hz component owing to the 0 current section.</p>

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Study on the Detection of Serial Arcs in AC System with 120 Hz Components of Received Signal Strength Indicator (RSSI)

  • 期刊论文

  • 发表日期：

    2025年2月3日

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  • Chan-Woong Park,
  • Yun-Sung Kim,
  • Woo-Cheol Lee

摘要

Arcs are generated by various electrical factors in electrical industry sites, causing fire and explosion accidents. It is difficult to secure the safety of such arcs with conventional main circuit breakers (MCBs) and fuses used in industrial sites. The current and harmonic analysis method used in the conventional arc detection method has a problem: it is difficult to identify the arc under certain nonlinear loads, such as the thyristors used in dimming lamps. In this study, the noise generated during arcs is extracted and amplified from areas outside the interference of background noise such as ambient device noise and biological noise. It is then converted into a received signal strength indicator (RSSI). Thereafter, we present serial arc detection technology in an AC system using a frequency analysis method that utilizes the Goertzel algorithm, leveraging the fact that the RSSI value has a 120 Hz component owing to the 0 current section.