Fresh Blackout Hits Abuja as Apo Substation Transformer Trips

Parts of the nation’s capital have once again been plunged into darkness following an early-morning equipment failure at the Apo Transmission Substation on Wednesday.

The Transmission Company of Nigeria (TCN) confirmed the outage, attributing the disruption to the tripping of a 100MVA TR4 power transformer at its 132kV/33kV facility. Preliminary findings trace the failure to an oil spillage on the transformer’s red-phase High Voltage (HV) bushing, which forced four critical 33kV feeders, H31, H33, H35, and H37 offline.

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In an official public notice, the transmission utility stated that technical teams are already mobilized on-site:

“The Transmission Company of Nigeria, TCN, hereby informs the public that the 100MVA TR4 transformer at the 132/33kV Apo Transmission Substation tripped in the early hours of today. Our maintenance crew are already carrying out a detailed investigation on the transformer to ascertain the exact cause of the tripping, to enable us effect repairs and restore the transformer.”

Following the grid disruption, the Abuja Electricity Distribution Company (AEDC) confirmed power losses across several major districts, including the Apo Legislative Quarters, Lokogoma, and Apo Resettlement.

The latest breakdown adds to a pattern of recurring supply interruptions across Abuja, coming just days after scheduled maintenance works left residents grappling with low generation and prolonged blackouts.