Oil-cooled sealed type transformer
Advantages oil transformerS20
1. Secondary energy efficiency, low loss, energy saving and electricity saving.
2. Completely sealed structure, maintenance-free and oil-proof.
3. High short circuit resistance and stable performance.
4.Low noise, suitable for residential areas and schools.
5. Good overload capacity and efficient heat dissipation.
6. Cost-effective solution suitable for new construction and renovation.
Technical characteristics of the SM series 10 kV distribution transformer with fully sealed oil cooling.
Ⅰ. Product Introduction
The SM series three-phase oil-immersed, fully sealed distribution transformer is a high-efficiency and energy-saving transformer. Using high-permeability grain-oriented silicon steel sheets, all-copper windings, and a fully sealed corrugated oil tank, this product ensures low energy loss, stable operation, a long service life, and is maintenance-free. Widely used in power distribution systems for industrial, commercial, and public buildings, it is a cost-effective, energy-saving transformer for both new construction and retrofit projects.
2. Main technical characteristics (customizable)
• Rated Power: 10kVA-5000kVA • Rated Voltage: 10kV±2×2.5%/0.4kV • Phase Configuration: Three-phase • Connection Group: Dyn11/Yyn0 • Cooling Method: Self-cooling with ONAN natural oil circulation • Insulation Class: Class A • Voltage Impedance: 4%–6% (Depends on Power) • Protection Class: IP54 • Energy Efficiency: Energy-saving and cost-effective • Operating Conditions: Outdoor Temperatures from -25°C to +40°C
Ⅲ. Key Features
1. Completely sealed, maintenance-free design. The sealed design of the corrugated oil tank effectively isolates air and moisture, preventing oxidation and aging of the insulating oil. This ensures long-term operation without maintenance or oil leakage, significantly reducing labor costs.
2. Excellent short-circuit resistance: All-copper windings combined with a robust support structure provide exceptional mechanical strength, effectively withstanding sudden voltage surges, ensuring safe and stable operation.
3. Low noise and vibration levels are achieved through an optimized core structure and lamination process, effectively reducing magnetic hysteresis losses and vibration noise. This makes it suitable for noise-sensitive areas such as residential areas, schools, and hospitals.
4. Its high environmental adaptability allows it to be installed in a variety of environments, including open spaces, containerized substations, and platforms. It is resistant to extreme temperatures, moisture, and dust, making it suitable for use in a variety of challenging conditions.
5. High price-performance ratio, wide application range, providing a balance between energy efficiency and cost. It is an economical choice for new projects, grid modernization, and power distribution in industry and business.
Ⅳ. Application scenarios
• New construction and renovation projects for urban and rural electricity networks • Industrial parks, factories, mines and enterprise distribution centres • Residential developments, shopping malls, hotels and office buildings • Public buildings including schools, hospitals, railway stations and municipal offices • Box-type substations and outdoor distribution systems • Various distribution network projects requiring energy efficiency and reliability within reasonable budgets Could you provide comparative summary versions of the S20/S22/S23 standards for direct use in documentation?
