The Transmission Company of Nigeria, (TCN), on Sunday said the tripping of three units of a power generating station, which suddenly removed 313MW from the grid, caused system instability that led to the loss of bulk supply to a section of the national grid.
Sunday Telegraph had earlier reported that Nigeria was thrown into a power blackout on Saturday, following a grid collapse.
The General Manager, Public Affairs, TCN, Ndidi Mbah, in a statement titled: ‘Grid fully restored after partial grid disturbance,’ said the operators commenced grid restoration efforts immediately after the incident.
She added that at about 21.57 pm yesterday, the entire part of the grid that was affected by yesterday’s incident was successfully restored.
She said: “TCN hereby states that there was a partial disturbance of the grid at about 15.09 hours yesterday, 6th July 2024.
“The system disturbance, which brings to three, the partial grid disturbances, with one total disturbance this year, is suspected to have been triggered by the unexpected tripping of three (3) units of a power generating station, which suddenly removed 313MW from the grid, causing system instability that led to the loss of bulk supply to a section of the national grid.
“Meanwhile, the System Operator reacted to the sudden drop in generation which led to a dip in frequency, by islanding a section of the grid which includes the lbom Power Station through which the company continued to feed Uyo, Aba, Itu, Eket, Calabar e.t.c even when the other section of the grid had no supply.
“Also, the operators commenced grid restoration efforts immediately after the incident. At about 21.57 hours yesterday, the entire part of the grid that was affected by yesterday’s incident was successfully restored.”