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We’re working towards restoring collapsed national grid – TCN

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Ibrahim Ramalan
Ibrahim Ramalan
Ibrahim Ramalan is a graduate of Mass Communications from the Ahmadu Bello University (ABU) Zaria. With nearly a decade-long, active journalism practice, Mr Ramalan has been able to rise from a cub reporter to the exalted position of an editor; first as Arts Editor with the Blueprint Newspapers before resigning in 2019; second and presently as an Associate Editor of the Daily Nigerian online newspaper. He can be reached via ibroramalan@gmail.com, or www.facebook.com/ibrahim.ramalana, or @McRamalan on Twitter.
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The Transmission Company of Nigeria, TCN, on Thursday said restoration of the national grid was almost completed following its collapse on Wednesday.

Ndidi Mbah, TCN General Manager, Public Affairs, said this in a statement made available to newsmen in Abuja.

Mrs Mbah said that the national grid experienced system disturbance at about 11:27a.m. on Wednesday, but that its restoration was almost completed as at 11:00p.m.

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“The incident was a result of sudden drop in system frequency from 49.94 Hertz (HZ) to 47.36Hz, which created system instability,” she said.

Hertz is a unit of frequency which replaces the earlier term of one cycle per second (cps).

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Mrs Mbah said that reports from the National Control Centre, NCC, revealed that the collapse was precipitated by the tripping of a unit with a load of 106 Megawatts, MW, in one of the generating stations due to “Exhaust over Temperature”

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She said the tripping pulled out other grid-connected units in the plant, which resulted in aggregated generation loss of 457MW.

“A train of events ensued, culminating in the collapse of the national grid.

“As obtainable in all systems, when a component of the electric power system is defective, the entire configuration is vitiated,” she said.

Mrs Mbah said an investigation was going on to establish the cause of the failure.

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She said the Nigerian Electricity Supply Industry, NESI, appreciated the understanding of the government and consumers of electricity within and outside the country.

Mrs Mbah said that NESI was committed to leveraging on interventions instituted thus far to enhance power supply reliability.

NAN

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