Nigeria’s TCN operationalises 330 kV line and associated substation

The Transmission Company of Nigeria (TCN) has operationalised the 330 kV Gombe-Damaturu transmission line and a 150 MVA transformer at the Damaturu substation, along with associated 75 MVAr reactors. The project was commissioned in three months after TCN took over the project from a contractor. The line was constructed back in 2013, but was not energised due to delays in the completion of the associated 330 kV Damaturu substation. The project is part of the Transmission Rehabilitation and Expansion Programme (TREP), which aims to strengthen the grid infrastructure to augment the wheeling capacity, thereby increasing redundancy and consistency in line with the requirements of the N-1 reliability criterion. TREP is an important component of the government’s Power Sector Recovery Program 2017-21, aimed at increasing the power supply and providing more reliable service. In addition, TCN has installed two 60 MVA, 132/33 kV transformers each at the Papalanto and Okpella substations located in Ogun and Edo states respectively. The Papalanto substation’s transformer capacity has been increased from 75 MVA to 135 MVA, while for the Okpella substation capacity has been increased from 15 MVA to 75 MVA.