OREANDA-NEWS. PJSC Stroytransgaz (STG) has completed the construction of 500 kV high voltage power line Rostovskaya NPP (Nuclear Power Plant) - Tikhoretskaya No.2 with a length of 360 km at the commission of FGC UES JSC.

The new OHL was routed parallel to the existing 500 kV OHL Rostovskaya NPP-Tikhoretskaya No. 1 over the territory of Rostov Oblast and Krasnodar Krai. During the construction, the two special crossings were built over Cheprak basin and Veselovsk reservoir.

Rostovskaya NPP - Tikhoretskaya No.2 OHL is one of the major facilities of the distribution scheme of power generating unit No. 3 of Rostovskaya NPP.

STG's scope of works also included the reconstruction of some sections of existing power lines totaling about 138 km in length:

500 kV OHL Rostovskaya NPP - Nevinnomyssk;

500 kV OHL Rostovskaya NPP -Tikhoretsk 1,

500 kV OHL Rostovskaya NPP - Yuzhnaya,

500 kV OHL Rostovskaya NPP - Budennovsk,

500 kV OHL Kubanskaya-Tikhoretsk.

STG provided for the reconstruction of four substations with a voltage of 500 kV each: "Tikhoretskaya", "Shakhty", "Budennovsk", "Yuzhnaya". For the Budennovsk and Yuzhnaya substations, STG has modernized 500 kV outdoor switchgear and replaced power equipment of linear cells, and protection relays, and emergency control automatics. The emergency control cabinets have been replaced at the 500 kV "Shakhty" substation. At the Tikhoretskaya substation, the new 500 kV linear cells were constructed, a 500 kV shunt reactor was installed with the in-line connection, and the reconnection of the 500 kV OHL for 500 kV outdoor switchgear was provided for.