BEVERLY HILLS, September 29, (THEWILL) – The Transmission Company of Nigeria (TCN) announced on Friday that Nigeria’s electricity grid recorded a brief total system collapse on Thursday.
It stated that the total collapse was due to the tripping of three generator units at Egbin power generation station adding that restoration of the grid was at an advanced stage.
According to the daily report on Nigeria’s power sector, the grid collapsed totally on Thursday, September 28, 2017, after the country generated 3,515 megawatts of electricity the day before.
“A total system collapse was recorded on September 28, 2017 at 20:03Hrs,” the report stated.
“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.
“By this incident, the Nigerian electric power grid lost generation completely before restoration commenced at 20:22Hrs.
“A post mortem analysis of the event indicated that grid generation was curtailed to about 4,262.7MW prior to the inception of the disturbance due to capacity under-utilisation, as the operational capability required to maintain grid stability had waned.
“This left the system vulnerable to the extent that perturbations of this magnitude resulted in severe system frequency dip that culminated in system collapse.”