Power Engineers of TGC-1 Increase the Stability and Reliability of the Power Equipment at the Putkinskaya HPP as part of the Northern Transit Project

04 October 2021

On 29 September 2021, the power engineers of TGC-1 PJSC finished the renovation of the 330 kV outdoor switchgear at the Putkinskaya HPP of the Kem HPPs Cascade, completing the set of works to replace power equipment, relay protection and automation devices.

This is part of the large-scale multi-year Northern Transit project operated by the Ministry of Energy, which began in 2014 and includes the construction of a second circuit of power transmission lines that runs in parallel to the existing lines, two power distribution points, Borey and Kamenny Bor, and two substations, Knyazhegubskaya and Loukhi. The new overhead lines will run for 1,050 km to the 330 kV Tikhvin-Liteiny substation in the Leningrad Oblast. The Borey distribution point is located in Kem, near the Putkinskaya HPP. 

“As a result of the Northern Transit project implementation, the throughput of the Kola-Karelian transit will increase by 1.5 times, which will make it possible to provide more power from the generating sources of the Kola Peninsula to consumers in the North-West of Russia. It is very important that the Kola energy system will significantly increase its resistance to emergency situations in adverse weather conditions or during repair of one of the overhead lines. The renovation of the 330 kV outdoor switchgear at the Putkinskaya HPP will increase the reliability of the power equipment at the Putkinskaya HPP,” noted Roman Kartoshkin, Chief Engineer of the Karelsky Branch of TGC-1 PJSC. 


Currently, the Karelsky Branch unites 16 hydroelectric power plants into three HPPs cascades: Vyg, Suna and Kem, and Petrozavodskaya Combined Heat and Power Plant (CHPP). The hydroelectric potential of the region has been developed in the basins of the Suna, Vyg, and Kem rivers. The total capacity of TGC-1 PJSC power plants in the Republic of Karelia: electric — 833.7 MW, heat — 689 Gcal/h.