On June 24 at 18:27, the 220-kV Uzlovaya substation (Almetyevsk branch of the Grid Company) experienced an emergency shutdown of the 1st and the 2nd 110-kV bus systems due to the damage in a circuit breaker at the 110-kV Uzlovaya-GPZ overhead line, followed by an oil discharge to the adjacent 110-kV switch cell of the T-1 transformer.
As a result of the accident, power supply was terminated for a part of consumers in the Almetyevsk City and the Almetyevsk Municipal District, a total of 80,000 people in six settlements.
After performing operational switching for separating damaged sections on the 1st and 2nd 110- kV bus systems, the restoration of the power supply to consumers began at 19:06 and ended at 20:42.
The damaged equipment underwent emergency recovery operations.
On June 24 at 19:00, a meeting was announced of the Tatarstan Headquarters for Ensuring Power Supply Security, which was commenced at 20:30 under the leadership of Deputy Prime Minister and Minister of Industry and Trade of Tatarstan Albert Karimov.