El Kontrol - Beginning
Name of Project: Substation Mizia 400/220/110 kV – Reconstruction of 400 kV, 220 kV and 110 kV Switchyards
Contractor: Electricity System Operator EAD

Substation Mizia 400/220/110 kV is situated in Pleven District. Its reconstruction has become necessary due to obsolescence of the existing 400 kV, 220 kV и 110 kV equipment. It was dismantled and substituted with new equipment. The adjacent concrete and steel structures were also reconstructed.

Lead in exploitation: December 2013
Finished Activities:

For implementation of this project EL KONTROL participated in Consortium ELCORECT 2012 together with the companies Etra-el Veliko Tarnovo and Elstiv-Engineering Pleven.

Implemented activities:

  • Reconstruction of 400 kV Switchyard
  • Dismantle of existing 400 kV equipment, dismantle of steel structures and breaking of concrete foundations;
  • Construction of concrete foundations and cable shafts;
  • Primary commutation activities installation of 400 kV equipment – circuit breakers, disconnectors, current measuring transformers, voltage transformers, surge arresters;
  • Mounting of steel structures;
  • Reconstruction of cable tranches, construction of a new pipe network;
  • Laying and connection of power and control cables;
  • Reconstruction of existing roads and extension of existing road deviations;
  • Construction of earthing installation;
  • Erection of lighting installation;
  • Commissioning works
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