Ben-Gurion University of the Negev, Be’er Sheva, Israel Academic Article uri icon

abstract

  • Electric power systems are designed such that the impedances between generation sources and loads are relatively low. This configuration assists in the maintenance of a stable, fixed system voltage on loads. Due to a strong connection of many parallel power sources, the short-circuit impedance of networks can be relatively low (< 2e5% of the load impedance), resulting in high levels of fault currents (dozens of times of the nominal current). Ongoing growth of an electric power grid is accompanied by the further growth of the fault current …

publication date

  • April 20, 2015