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Thyristor Arc Eliminator for Protection of Low Voltage Electrical Equipment

Author

Listed:
  • Karol Nowak

    (Institute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland)

  • Jerzy Janiszewski

    (Institute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland)

  • Grzegorz Dombek

    (Institute of Electric Power Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland)

Abstract

The paper presents the layout of two opposing thyristors working as an Arc Eliminator (AE). The presented solution makes it possible to protect an electrical apparatus against the effects of an arcing fault. An Arc Eliminator is assumed to be a device cooperating with the protected apparatus. Thyristors were used because of their speed of operation and a relatively lower cost compared to other semiconductors with the same current-carrying capacity. The proposed solution, as one of the few currently available, makes it possible to eliminate the fault arc—both at short-circuit currents and current values to which overcurrent protections do not react. A test circuit was designed and made to study the effectiveness of the thyristor arc eliminator. A series of tests was carried out with variable impedance in the arc branch, including the influence of circuit inductance on arc time. It was found that the thyristor arc eliminator effectively protects devices powered from a low voltage power network against the effects of a fault or arc fault. The correctness of system operation for a wide range of impedance changes in the circuit feeding the arc location was demonstrated.

Suggested Citation

  • Karol Nowak & Jerzy Janiszewski & Grzegorz Dombek, 2019. "Thyristor Arc Eliminator for Protection of Low Voltage Electrical Equipment," Energies, MDPI, vol. 12(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:14:p:2749-:d:249436
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    References listed on IDEAS

    as
    1. Qing Yang & Jing Wang & Wenxia Sima & Lin Chen & Tao Yuan, 2011. "Mixed Over-Voltage Decomposition Using Atomic Decompositions Based on a Damped Sinusoids Atom Dictionary," Energies, MDPI, vol. 4(9), pages 1-18, September.
    2. Qiwei Lu & Zeyu Ye & Yilei Zhang & Tao Wang & Zhixuan Gao, 2019. "Analysis of the Effects of Arc Volt–Ampere Characteristics on Different Loads and Detection Methods of Series Arc Faults," Energies, MDPI, vol. 12(2), pages 1-16, January.
    3. Lin Yang & Weihao Qiu & Jichao Huang & Yanpeng Hao & Mingli Fu & Shuai Hou & Licheng Li, 2018. "Comparison of Conductor-Temperature Calculations Based on Different Radial-Position-Temperature Detections for High-Voltage Power Cable," Energies, MDPI, vol. 11(1), pages 1-17, January.
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    Citations

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    Cited by:

    1. Karol Nowak & Jerzy Janiszewski & Grzegorz Dombek, 2020. "A Multi-Sectional Arc Eliminator for Protection of Low Voltage Electrical Equipment," Energies, MDPI, vol. 13(3), pages 1-20, January.
    2. Karol Nowak & Jerzy Janiszewski & Grzegorz Dombek, 2021. "The Possibilities to Reduce Arc Flash Exposure with Arc Fault Eliminators," Energies, MDPI, vol. 14(7), pages 1-25, March.

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