The Transmission Company of Nigeria, TCN, has restored the National Power Grid after a partial system disturbance a day earlier.
The incident followed a sudden drop in system frequency from 50.18Hz to 47.63Hz that caused system instability and collapse of a part of the national grid.
However, the partial system disturbance did not affect parts of the grid such as Afam Complex, Alaoji, Ikot Ekpene, Odukpani, and Calabar axis.
Electricity supply to these areas was not interrupted by the incident.
According to reports from the Supervisory Control and Data Acquisition (SCADA), control panel readings by System Operators showed that some units from a particular generating station tripped suddenly, causing an initial loss of 402 megawatts from the grid network.
This caused a destabilizing imbalance, further causing the pulling out a total of 3,560MW from the grid that finally collapsed part of the national grid.
TCN however, commenced the immediate recovery of the grid through the Shiroro Generating Station and almost immediately restored electricity to Abuja axis.
The Alaoji – Onitsha axis was restored at about the same time as Abuja, while the Shiroro – Mando axis, on the other hand was later restored.
A statement from TCN General Manager Public Affairs, Ndidi Mbah indicated that the national grid was fully recovered and operational.
She added that TCN appreciated the understanding of government and the electricity consumers within the affected areas, noting that it is consistently executing projects geared towards putting in place a robust grid.
She equally added that TCN was pursuing a nationwide SCADA implementation that would further contribute to the grid stability.
Emmanuel Ukoh
