Reconstruction of PS “N. Kolev” in Sofia was successfully finished
On March 5, 2014 the State Acceptance Commission of the National Construction Supervision Department (NCSD) verified and confirmed ROCON’s side-work on reconstruction of power station "Nikola Kolev" in Sofia, owned by CEZ Distribution Bulgaria.
Work on the site covers all activities - from reconstruction of switchgear to the replacement of old electromechanical relay protections. Power transformers were equipped with new differential relay and backup relay protection series DRAGON- 3 as RTI 403D3 and RFI401D3 types.