A Report No 2 opening the construction activities on Substation
“Helios 110/20 KV” near the town of Slanchev bryag was signed on 11 April, 2011.
Project has been assigned by NEC EAD as a client, ABB Bulgaria as the main
executor and EL KONTROL as a subcontractor performing construction and erection
works as well as commissioning.
The period for closing the first stage of construction activities was
extremely short. The final goal was the installation of a live power
transformer No2, feeding the MV cables through the new 20 KV switchgear.
Part of the construction work was executed under
unsuitable weather conditions in order to keep the deadlines. The
termination of the works assigned in such a short period of 67 calendar
days was made possible due to the efforts of all the employees working in EL
КOTROL and to the strong organization performed by the contracting
The switchgear was successfully activated on 17 June, 2011, the power
transformer was loaded which started the 72 hours equipment tests.