El Kontrol - Beginning
 
 
Name of Project: Reconstruction and enlargement of 110/20 kV Substation Kavarna
   
Contractor: Assignor of this contract is the Portuguese company Efacec Engenharia E Sistemas
   
Description: Project concerns reconstruction and enlargement of 110 kV Switchyard and 20 kV Indoor Switchgear of Substation Kavarna situated on the land of Kavarna town, Dobrich Region.
   
Lead in exploitation: December 2013
   
Finished Activities:

Works start in October 2012. The following tasks are subject to implementation:

- Enlargement of 110 kV Switchyard:

  • erection of concrete foundations for power transformers, erection of portals and tables for installation of electrical equipment;
  • erection of cable trays and foundations for control panels;
  • erection of steel structures – portals and tables for installation of electrical equipment;
  • installation of 110/20kV power transformer;
  • substitution of electrical equipment: circuit breakers, disconnectors, current transformers, voltage transformers, surge arresters, control panels, storage battery, rectifier;
  • installation and connection of busbar system;
  • laying and connection of power and control cables;
  • installation of RTU system;
  • erection of grounding installation and lightning-protection installation;
  • erection of lighting installation and video-surveillance installation;
  • construction of local roads and approaches;
  • erection of a fence;
  • vertical planning.

- Installation of new AC/DC panels

- Installation of new relay/control panels

- Enlargement of 20 kV Indoor Switchgear building:

  • construction works;
  • erection of grounding installation and lightning-protection installation;
  • vertical planning;
  • installation of distribution switchgears

- Control tests and commissioning of all the equipment installed.

   
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