Russia's first 110 kV high-voltage substation Kozhukhovo turns 100

On April 30, 1922, Kozhukhovo, the first 110 kV high-voltage substation in Russia, was put into operation in Moscow, in accordance with the GOELRO plan. The history of Russian high-voltage electric power industry starts from this day. A memorial plaque on the "Rosseti Moscow Region" power supply center, now reminds of an event, significant for the entire electric grid complex of our country.

The energy facility, unique for the beginning of the XX century, ensured the power output of the new Kashirskaya Regional Power Station into the power system of the developing capital region. The 110 kV lines transmitted electricity through three 6.6 kV cables to the Moscow city power grid.

Over 100 years, the substation has been upgraded four times, each time making Kozhukhovo look more and more modern. However, it also has power equipment that is almost 100 years old. It is still located in a historic red brick building built in 1922 and is functioning stably.

At the same time, it is at the Kozhukhovo substation that many innovations have been put to good use. The first tests of SF6-insulated equipment, radiometers, thermal imagers, bird repellent devices and other technical solutions were carried out there, which subsequently became widely used in the electric power industry.

At present, reliable and uninterrupted operation of the substation is provided by modern electrical equipment, including four power transformers with a capacity of 63 MVA each.

In order to improve the quality of electricity supply and provide the possibility of technological connection of new consumers, in the next 2 years it is planned to build a complete switchgear with 110 kV SF6-insulated equipment and 10 kV closed switchgear, as well as modern SF6-insulated circuit breakers.

For the day, the Kozhukhovo substation is an important link in Moscow energy infrastructure. It is included in the list of power centers that have an output of over 58 MVA available for technological connection. It supplies electricity to socially significant facilities in the Southern Administrative District of Moscow, including Medical-Sanitary Unit No. 34, City Clinical Hospital No. 53, Federal State-Funded Healthcare Institution Center for Hygiene and Epidemiology, Fire Department No. 20, traction substations No. 13 and 21 of the State Unitary Enterprise "Mosgortrans", as well as over 200,000 residents of Danilovsky, Zamoskvorechye and Yuzhnoportovy districts.