Enlargement of 110 kV Switchgear in 110/10/6.3 kV Substation Chelopech

Assignor:
PM Electrical Ltd.

Location:
Chelopech Village

Assigned: 2013 / Completed: 2014

Project description

110/10/6.3 kV Substation Chelopech is located in Chelopech Village, Sofia District. Enlargement of the Substation has become necessary, due to the activity of a functioning copper-gold mine. Enlargement includes construction of a new 110 kV transformer, and substitution of the facilities in the two existing 110 kV bays.

Activities

  • Dismantle of existing electrical equipment;
  • Supply and installation of 110 kV and 10 kV electrical equipment: FS6 circuit breakers, disconnectors, current and voltage transformers, surge arresters;
  • Supply and erection of galvanized steel structures;
  • Supply, laying and connection of MV power cables;
  • Supply and installation of busbar system, branch connection links, and connections among equipment;
  • Installation and connection of 400 MVA transformer, earthing on 6.3 kV side;
  • Installation of grounding system, lightning-protection system, and of lighting system;
  • Construction of concrete foundations, transformer oil-collection pit, oil-discharge canal, fire wall, support wall, fences, concrete roads, cable trenches;
  • Electrical tests and commissioning of 110/10/6.3 kV Substation Chelopech.

 

 

Reference BG          Reference EN