The Transmission Company of Nigeria, TCN, has disclosed that the nationwide blackout was as a result of the collapse of the National Grid on May 8, at 2:32p.m. following a multiple tripping on its substation in Onitsha, Anambra.
The Managing Director of TCN, Mr. Mohammed Usman, who disclosed this at a news conference in Abuja on Friday, said the collapse may also have been triggered because one of the generators went off.
Usman noted that though some stability had been achieved with regards to the national grid, it didn’t mean there would be no disturbances.
He said: “What happened a day before yesterday at 14;32 hours, (Wednesday), 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 one of the generators went out.
“We have sent our team of engineers to go and investigate, we normally investigate this kind of disturbances.
“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.”