The Transmission Company of Nigeria (TCN) has restored power to areas affected by an arcing incident on the Benin-Egbin 330kV line. The incident occurred on Monday at around 2:47 pm, caused by a heavy system surge that led to arcing at the Egbin Transmission Substation switchyard. This resulted in a power tripping at the Egbin Generating Station, affecting power supply to the Egbin Transmission Substations’ outgoing lines.
Ndidi Mbah, TCN General Manager, Public Affairs, explained that the arcing caused lines to trip, leading to a loss of power supply to several regions, including Lagos, parts of the South West, parts of the North Central, and Abuja. The Osogbo-Ihovbor 330kV line 1 also experienced issues due to increased load.
To prevent further grid disruption, the Osogbo-Ihovbor 330kV line was temporarily cut off. The Benin-Egbin 330kV line 1 Circuit Breaker tripped at 2:56 pm, but the situation was rectified, and power supply was fully restored by 6:10 pm. Other regions, including the South Eastern region, North East, and some parts of the North Central and South West, continued to receive power without interruptions.