Radiastar successfully completed the manufacturing and export of a heavy-duty SFZ11-30000/110 oil-immersed power transformer tank for a utility power transmission project in Russia.
The transformer tank was specially engineered for cold-climate operation and designed to meet the demanding requirements of the Russian power grid system. The project included a reinforced main tank structure, detachable radiator cooling system, conservator oil tank, and high-performance anti-corrosion coating suitable for extreme outdoor environments.
With advanced fabrication technology and strict quality control procedures, Radiastar ensured excellent sealing performance, structural stability, and long-term operational reliability.
| Item | Description |
|---|---|
| Project Name | Russia Utility Substation Transformer Project |
| Product | Power Transformer Oil Tank |
| Transformer Model | SFZ11-30000/110 |
| Export Country | Russia |
| Application | Utility Power Substation |
| Cooling Method | ONAN / ONAF |
| Tank Type | Radiator-Type Transformer Tank |
| Conservator Type | Cylindrical Conservator Tank |
| Surface Treatment | Sandblasting + Heavy Anti-Corrosion Coating |
| Parameter | Specification |
|---|---|
| Transformer Model | SFZ11-30000/110 |
| Voltage Class | 110kV |
| Rated Capacity | 30MVA |
| Frequency | 50Hz |
| Phase | Three Phase |
| Transformer Type | Oil-Immersed Power Transformer |
| Tap Changer | On-Load Tap Changer (OLTC) |
| Cooling Method | ONAN / ONAF |
| Insulation Medium | Mineral Transformer Oil |
| Parameter | Estimated Specification |
|---|---|
| Voltage Level | 110kV |
| Capacity Range | 30MVA |
| Rated Capacity | 30MVA |
| Structure Type | Three-Phase Oil-Immersed Transformer Tank |
| Cooling Type | ONAN / ONAF |
| Tank Weight | Approx. 22T |
| Total Transportation Weight | Approx. 45T |
| Oil Weight | Approx. 12T |
| Tank Length | Approx. 5.5m |
| Tank Height | Approx. 4m |
The transformer oil tank adopted a reinforced welded steel structure designed to withstand:
The structure ensures excellent mechanical strength and operational safety.
The transformer was equipped with detachable radiator panels to improve cooling efficiency and simplify transportation and maintenance.
Advantages include:
The cylindrical conservator tank helps maintain transformer oil quality by minimizing moisture and air contamination.
Benefits include:
Considering Russia’s harsh climate conditions, the transformer tank received advanced anti-corrosion treatment including:
The coating system improves durability under:
Radiastar applies strict manufacturing standards throughout production.
All welding seams were inspected to ensure zero oil leakage risk.
Each transformer tank undergoes:
| Inspection Item | Description |
|---|---|
| Dimensional Inspection | Structural accuracy verification |
| Weld Inspection | Welding seam quality control |
| Pressure Test | Tank sealing verification |
| Leakage Test | Oil leakage prevention |
| Paint Thickness Test | Anti-corrosion coating verification |
Radiastar strictly follows IEC and international transformer manufacturing standards.
The SFZ11-30000/110 transformer tank is suitable for:
As a professional transformer component manufacturer, Radiastar Official Website specializes in:
Radiastar products are exported worldwide and widely used in utility and industrial power infrastructure projects.
