The Transmission Company of Nigeria (TCN) has attributed the blackout experienced in some parts of the country to sudden upsurge in frequency from 50.33Hz to 51.44Hz caused by issues in one of its substation.
Although, the issues were not disclosed, TCN said it became expedient to shutdown in order to prevent further damage to the system.
This is even as it disclosed that it has commence the implementation of recommendations made by the investigative committee on grid collapse.
The TCN General Manager Public Affairs, Mrs Ndidi Mbah, gave these explanations in a statement made available to Journalists Thursday.
She assured that restoration of power supply is gradually progressing as Abuja axis was restored within minutes.
According to her, “The national grid experienced a disturbance at approximately 11:29am this morning, caused by a sudden rise in frequency from 50.33Hz to 51.44Hz.
“Recovery efforts began immediately, and the Abuja Axis was restored within 28 minutes. Recovery is still ongoing.
“The frequency spike was caused by issues encountered at one of our substations, which had to be shut down to prevent further complications. In addition to this, we are actively engaged in significant repair work on several critical transmission lines and substations.
“This includes the 330kV transmission lines along the Shiroro–Mando axis, major upgrades at the Jebba Transmission Substation, and the restoration of the second Ugwuaji–Apir 330kV transmission line.
“Furthermore, following the submission of the investigative report on the causes of previous grid collapses, we have begun addressing the identified weaknesses in the transmission system.
“Efforts are being made to close the gaps highlighted in the report and to enhance the overall stability and resilience of the grid. These efforts include both technical upgrades and strategic interventions based on the committee’s recommendations.
“However, it is important to note that while these repairs and improvements are underway, some degree of instability in the system is likely to persist until all major works are completed.”
She said that TCN acknowledges the impact of these disruptions and ask for the understanding and patience of the public during this challenging period.
“The company remains committed to improving the reliability of electricity supply, recognizing the vital role that stable power plays in Nigeria’s socio-economic development.
“We assure the public that all necessary measures are being taken to ensure the grid’s long-term stability, in line with the recommendations of the investigative committee, while also addressing infrastructure damage such as vandalized transmission lines.”
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