Nigeria: Rehabilitation of Old Circuit Breakers Begins Nationwide - TCN

22 November 2021

The Transmission Company of Nigeria (TCN) has commenced the rehabilitation and replacement of old Circuit Breakers in the nation's transmission network.

Ndidi Mbah, general manager, Public Affairs, on Sunday, noted that the project is geared towards further improving bulk power transmission to distribution load centers nationwide.

The rehabilitation and replacement work which were officially flagged off at the 37 years old 330/132kV Ajaokuta Substation, Kogi State, marks TCN's determination to ensure that all circuit breakers in its network are certified healthy and performs optimally.

Mbah, noted that decision to start with the circuit breakers in Ajaokuta Substation was due to the strategic role the substation plays in transmitting bulk electricity to distribution load centers of AEDC and BEDC, covering areas such as; Abuja, Lokoja, Ayangba, Okene, Okpila, and Benin among others.

According to her, TCN's efforts at rehabilitating the circuit breakers despite routine maintenance undertaken by in-house engineers is to ensure that they continue to perform optimally and eliminate any incident of sudden breakdown due to age.

TCN noted that the exercise will be extended to all substations in the country whose circuit breakers are 20 years and above.

"In line with TCN's quest to further improve the capacity of its workforce, it assigned its engineers to work directly with the contractors to ensure hands-on training and practical skills transfer.

"Proper retrofitting or replacement of the circuit breakers will ensure that they operate optimally for the next 15 to 20 years.

"Circuit Breakers protect power transformers from any abnormal conditions or fault that may occur within or from outside the network.

"They also provide power supply flexibility in the substations' switchyard when maintenance work is ongoing, without interrupting bulk power supply to distribution load centers in the grid.

"TCN will not relent in its efforts to maintain, repair, and replace power transmission equipment, as well as install new ones to ensure a more stable and efficient transmission of bulk power to the distribution substations nationwide" reads the statement in parts.

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