News
Power Outage: Plant Trip-Off, 450MW Loss Caused Grid Collapse – TCN
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TCN said the system disturbance occurred at about 11.27am on Wednesday resulting in a sudden drop in system frequency from 49.94 Hertz (Hz) to 47.36Hz, which created system instability
- It said the tripped unit at the GenCo was due to ‘Exhaust over Temperature’
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EKO HOT BLOG reports that the Transmission Company of Nigeria (TCN) has said the system collapse recorded on Wednesday morning was caused by a tripped-off turbine that affected an entire Generation Company (GenCo), causing a loss of 450 megawatts (MW).
In a statement on Thursday, TCN spokesperson, Ndidi Mbah, said in spite of setbacks encountered at the initial stage, grid restoration was completed last night.
“As obtainable in all systems, when a component of the electric power system is defective, the entire configuration is vitiated.”
TCN said the system disturbance occurred at about 11.27am on Wednesday resulting in a sudden drop in system frequency from 49.94 Hertz (Hz) to 47.36Hz, which created system instability.
According to reports obtained from the TCN National Control Centre (NCC), the tripped unit at the GenCo was due to ‘Exhaust over Temperature’.
“This unwholesome event, which pulled out other grid-connected units in the plant, resulted in aggregated generation loss of 457MW. In its wake, a train of events ensued – culminating in the collapse of the national grid.
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“Meanwhile, a full-scale investigation is being conducted to establish the cause of this failure,” TCN said.
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