The Transmission Company of Nigeria (TCN) announced that the national grid has been completely restored after its collapse on Saturday. On Sunday, the TCN confirmed that the grid experienced a partial disturbance around 15:09 hours on Saturday, July 6, 2024, which was likely caused by the unexpected tripping of three units at a power generating station.
TCN General Manager, Public Affairs, Ndidi Mbah in a statement on Sunday, said, “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 Ibom Power Station through which the company continued to feed Uyo, Aba, Itu, Eket, Calabar, etc. 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 hrs yesterday, the entire part of the grid that was affected by today’s incident was successfully restored,” Mbah said.
