The Transmission Company of Nigeria (TCN) has stated that the collapsed national grid, which to blackouts all over the country, has been restored.
The collapse which occurred at about 12:20 p.m was restored the same day at 4:59 p.m. TCN’s General Manager, Public Affairs. Mrs Ndidi Mbah made this known in Abuja on Thursday.
She said that the collapse was triggered by a sudden drop in system frequency to 47.21Hz. She added that reports received from Supervisory Control and Data Acquisition (SCADA) and other power generating stations showed that at about 12:20 p.m., two generating units tripped in one generating station.
“While four equally tripped in another generating station, causing a loss of 261MW and 350MW respectively, bringing the total loss of electricity on the grid to 611MW. It is suspected that the sudden loss of 611MW from the grid caused system instability and its eventual collapse.”
“After the collapse, TCN’s system operators immediately commenced the restoration of the grid and by 12:46 p.m., power supply in Abuja was fully restored from Shiroro Generating Station at 1:05 p.m.”
“TCN equally commenced grid restoration from the Delta Power Station, and at 4:59 p.m, a full restoration of the entire grid was achieved,” she said.
Mbah said that TCN appreciates the government, electricity customers’ nationwide and international customers for their patience.
