CAUSES OF INDEFINITE FAULTS IN ESTONIAN 110 kV OVERHEAD POWER GRID; pp. 225–243

Authors:
  • PTPaul Taklaja
    Paul Taklaja
  • RORein Oidram
    Rein Oidram
  • JNJaan Niitsoo
    Jaan Niitsoo
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Abstract
The study considers causes of indefinite faults in the 110 kV over­head power grid in Estonia. The number of indefinite faults (flashovers on over­head line insulators) has increased significantly in the last years, causing a lot of problems to the transmission system operator (TSO). The study claims wildlife, more specifically migrating birds white storks, to be responsible for most of the indefinite faults in the power grid (excremental contamination).