China S11-M Oil-Immersed Transformers: Energy-Efficient Solutions from Leading Suppliers and Factory
Through dual optimization of materials and structural design, they achieve remarkable improvements in energy efficiency and reliability, making them ideal for industrial power supply, urban grid expansion, and renewable energy integration.
The oil tank features a fully sealed corrugated structure that completely isolates transformer oil from air, effectively preventing oil degradation and moisture absorption. This design extends maintenance intervals to 2–3 times longer than conventional products while delivering superior heat dissipation and short-circuit resistance. The product also incorporates low-noise design, high-reliability construction, and core-free maintenance features, making it adaptable to complex outdoor environments including high temperatures, high humidity, and salt spray conditions.
With rated capacities ranging from 30kVA to 2500kVA and voltage levels up to 35kV, it meets diverse needs from small factories to large industrial parks. Its eco-friendly features align with green grid construction requirements, making it an ideal choice for driving energy transition.
Fully Sealed Corrugated Tank
Completely isolates transformer oil from air, preventing oil degradation and moisture absorption for extended service life.
Extended Maintenance Intervals
Maintenance intervals are 2–3× longer than conventional products, significantly reducing operational downtime and costs.
Superior Heat Dissipation
Advanced structural design ensures excellent thermal management and enhanced short-circuit resistance under load.
Low-Noise Design
Engineered for quiet operation, suitable for urban environments and noise-sensitive industrial applications.
Eco-Friendly Construction
Aligns with green grid construction requirements, supporting renewable energy integration and energy transition goals.
Adaptable to Harsh Environments
Performs reliably in high temperatures, high humidity, and salt spray conditions for demanding outdoor deployments.
| Parameter | Specification |
|---|---|
| Rated Capacity | 30 kVA – 2500 kVA |
| Voltage Level | Up to 35 kV |
| Tank Structure | Fully sealed corrugated design |
| Maintenance Interval | 2–3× longer than conventional products |
| Applicable Environments | High temperature, high humidity, salt spray |
| Application Scenarios | Industrial power supply, urban grid, renewable energy |












