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The Short-Circuit Protections in Hybrid Systems with Low-Power Synchronous Generators

Author

Listed:
  • Bartosz Rozegnał

    (Institute of Electromechanical Conversion, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

  • Paweł Albrechtowicz

    (Institute of Electromechanical Conversion, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

  • Dominik Mamcarz

    (Institute of Electromechanical Conversion, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

  • Natalia Radwan-Pragłowska

    (Institute of Electromechanical Conversion, Cracow University of Technology, Warszawska 24 St., 31-155 Cracow, Poland)

  • Artur Cebula

    (Department of Energy, Cracow University of Technology, Jana Pawła II Av., 31-864 Cracow, Poland)

Abstract

Single-phase short-circuits are most often faults in electrical systems. The analysis of this damage type is taken for backup power supply systems, from small power synchronous generators. For these hybrid installations, there is a need for standard protection devices, such as fuses or miniature circuit breaker (MCB) analysis. Experimental research mentioned that a typical protective apparatus in low-voltage installations, working correctly during supplying from the grid, does not guarantee fast off-switching, while short-circuits occur during supplication from the backup generator set. The analysis of single-phase short-circuits is executed both for current waveform character (including sub-transient and transient states) and the carried energy, to show the problems with the fuses and MCB usage, to protect circuits in installations fed in a hybrid way (from the grid and synchronous generator set).

Suggested Citation

  • Bartosz Rozegnał & Paweł Albrechtowicz & Dominik Mamcarz & Natalia Radwan-Pragłowska & Artur Cebula, 2020. "The Short-Circuit Protections in Hybrid Systems with Low-Power Synchronous Generators," Energies, MDPI, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:160-:d:472547
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    References listed on IDEAS

    as
    1. Paweł Ocłoń & Janusz Pobędza & Paweł Walczak & Piotr Cisek & Andrea Vallati, 2020. "Experimental Validation of a Heat Transfer Model in Underground Power Cable Systems," Energies, MDPI, vol. 13(7), pages 1-10, April.
    2. Dominik Mamcarz & Paweł Albrechtowicz & Natalia Radwan-Pragłowska & Bartosz Rozegnał, 2020. "The Analysis of the Symmetrical Short-Circuit Currents in Backup Power Supply Systems with Low-Power Synchronous Generators," Energies, MDPI, vol. 13(17), pages 1-14, August.
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    Cited by:

    1. Paweł Albrechtowicz, 2021. "Phase-Shifting Transformer Efficiency Analysis Based on Low-Voltage Laboratory Units," Energies, MDPI, vol. 14(16), pages 1-17, August.

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