National grid collapse left millions of Nigerians without power

[dropcap]T[/dropcap]he Transmission Company of Nigeria (TCN) Friday revealed that a total system collapse of the national grid on Sept. 28 at 8:03 p.m, caused temporary loss of electricity generation for the nation’s power grid.

“A total system collapse was recorded on September 28, 2017 at 20:03Hrs.

“Reports obtained from stations and the sequence of events generated by the SCADA system indicated that the system collapse was triggered by the tripping of Egbin Units ST4, ST6 and ST5 at ‘20:03:15, 20:03:32 and 20:03:34’ respectively, the TCN said.

It explained that the capacity under-utilisation and the operational capability required to maintain grid stability, which had waned, made the grid system vulnerable. It said the vulnerability and disturbance of the system resulted in severe system frequency dip that culminated in the system collapse.

“TCN hereby solicits for the understanding of all Nigerians as it continues with efforts to provide the electricity industry with a world class national grid. “It will strive to ensure that the stride attained recently in frequency control is sustained in line with world industry standards and codes,“ the statement further stated.