TCN links grid collapse to multiple tripping of Onitsha ‎substation

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Transmission Company of Nigeria (TCN) says the collapse of the National Grid on May 8 at 14:32 hours was caused by a multiple tripping around its substation in Onitsha, Anambra State.
Managing director of TCN, Mohammed Usman, said this at a news conference in Abuja on Friday.
The national electricity grid had on Wednesday experience some disturbance resulting in reduction of electricity allocation to electricity distribution companies in the country.
Mohammed said the collapse might also had been triggered because of one of the generators that went off, saying, “What happened a day before yesterday at 14:32 hours was a case of system collapse, we had tripping.
“The reason for the grid collapse was that there was a multiple tripping around Onitsha substation; we are also suspecting that that one of the generator went out. We have sent our team of engineers to go and investigate, we normally investigate this kind of disturbances.’’
He, however, said despite the fragile nature of the nation’s power grid, the TCN had archived some level of stability on the national grid.
“Although, we have achieved some level of stability on the grid through the massive investment that we have done in the last two years.
“It does not mean that our grid has become disturbance free, because our grid is still very fragile, it is a journey that we are in that will take us to have a modern and stabilised grid.
“You remember, I had told you that we need to archive four important things to have a stabilised grid.
“We need to have critical investment in lines and substations so that we put N-1 across the country, that will ensure that any equipment that goes out at any point in time will not affect supply on that