TCN Explains the Cause of the Most Recent National Grid Failure

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The Transmission Company of Nigeria (TCN) has said the breakdown of the national grid, which occurred early Saturday morning, was a ‘temporary grid disturbance’.....KINDLY READ THE FULL STORY HERE▶

The latest development marked the third grid collapse this week and the eighth in 2024.

According to Ndidi Mbah, TCN’s General Manager of Public Affairs, the grid disturbance was triggered by an explosion at the 330kV Jebba Transmission Substation. Mbah said the bus section of a current transformer malfunctioned, activating the protection system and temporarily disrupting power supply.

Mbah said that TCN engineers promptly intervened, isolating the faulty transformer and reconfiguring the busbar arrangement to restore power supply to the affected areas.

“The Transmission Company of Nigeria hereby states that the national grid experienced a temporary disturbance at about 8:15 am, today, 19th Oct. 2024.

“According to the report from the NCC, the bus section of a current transformer exploded at 330kV Jebba Transmission Substation and as expected, the protection system was activated, and this promptly opened the busbars to curtail the explosion, thereby preventing an outbreak of fire and further damage to adjacent equipment.

“The action of the protection system led to a temporary disturbance on the grid.

“Our engineers at Jebba have successfully carried out switchings, isolating the faulty current transformer. They have equally reconfigured the busbar arrangement, restoring power supply to the station, and other parts of the grid,” the statement read.

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