By Stella Odueme
The Transmission Company of Nigeria (TCN) states that at about 12:56 a.m. on 22nd May 2026, one of the 100MVA 132/33kV transformers at Apo Substation tripped on differential relay indication while on no load.
Acccording to the General Manager, Public Affairs, Ndidi Mbah, on Saturday in a statement, initial inspection revealed oil spillage around the transformer.
However, further investigation by TCN maintenance crew revealed faults with the red and yellow phase 33kV bushings of the 100MVA power transformer.
Presently, the red phase bushing has been resuscitated, while work is ongoing on the yellow phase.
In view of this incident, TCN has requested that Abuja Electricity Distribution Company (AEDC) take supply for customers on the outgoing 33kV feeders connected to the affected 100MVA transformer at Apo Substation from other TCN feeders within its franchise area, pending completion of repairs.
Our engineers are working assiduously to restore the transformer and sincerely apologize for the inconvenience the incident has caused AEDC and electricity customers fed from the affected feeders.
