TCN Transmission News
The Transmission Company of Nigeria (TCN) wishes to correct the misinformation circulated by the Eko Electricity Distribution Company (EKEDP) on 26/8/26 regarding operations at the Lekki Transmission Substation.
Contrary to EKEDP’s claim that TCN's T11 transformer tripped unexpectedly and was awaiting inspection, the actual incident involved the simultaneous tripping of EKEDP's Oniru 33kV and Agungi 33kV feeders at 04:34am on 26th August, 2026, due to overcurrent and earth fault. This fault resulted in the inter-tripping of TCN's TR1-60MVA 132/33kV transformer primary and secondary breakers, accompanied by heavy bang and smoke.
TCN Maintenance Crew promptly responded, rehabilitated the damaged secondary breaker, and restored both primary and secondary breakers later that same day. However, upon EKEDP’s trial closure of its Oniru feeder, the same relay indications caused another trip, necessitating further corrective work.
Key Clarifications:
- No outage occurred on TCNs T11 transformer as claimed by EKEDP.
- The incident was strictly related to EKEDP's Oniru 33kV and Agungi 33kV feeders.
- TCN’s technical team has been on-site, working assiduously to restore supply within the shortest possible time.
TCN assures electricity customers impacted by the incident that we are actively addressing the fault caused by the DisCo's feeders and regrets any inconvenience caused.
We are committed to working assidiously to put in place a more robust transmission network
Signed Management Transmission Company of Nigeria (TCN) 27/8/26