Reconstruction and Refurbishment of 220 kV SS Dagomys
Reconstruction and Refurbishment of 220 kV SS Dagomys
The object location: Dagomys vil, Sochi city, Lazarevsky district, Krasnodar region, RF.
The Customer: JSC «TsIUS YEES» – TsIUS Pivdnia (Structural subdivision of JSC «Federal Network Company of Integrated Power System»).
Designing Stages:
- Conceptual design documentation.
- Detailed design documentation.
The Project Technical-Economic Indices
- The ground area within fences limits, hа – 4.0048.
- Voltage, kV - 220/110/35/10.
- Quantity of 220 kV voltage connections, pcs - 6.
- Quantity of 110 kV voltage connections, pcs - 13.
- Auto transformer АТ200000 (220/110/35 with the on-load transformer control), pcs - 2.
- The 220 kV switchgear circuit diagram with the GIS - «transformers- busbars with 1½ circuit breaker scheme» use.
- Construction time period, months - 36.
Brief Description of Main Solutions
Provided for are two 220/110/35 kV auto transformers with the on-load transformer control, which are to be located in the cells; the 220 kV packaged GIS, to be located in separate building.
The old 220 kV switchyard has been dismantled.
The existing MCB (Main Control Building) has been reconstructed and re-planned.
Provided for is the diesel-generator plant of 630 kVА capacity.
Provided for is the step-by-step re-connection of the 10 kV cable lines from the existing packaged LV switchgears to the new 10 kV indoor switchgear bays.
Regarding the nature features of the ground area for the substation location, there have been realized the measures aimed at water discharge, hydraulic insulation.
The technical solutions have been taken based on the territory seismicity (9 Number).