Oil Immersed Hermetically Sealed Type Transformer
S20 oil-immersed transformer product advantages
1. Secondary energy efficiency, low loss, energy saving and power saving
2. Fully sealed structure, maintenance-free and oil-tight
3. Strong short-circuit resistance and stable operation
4. Low noise, suitable for residential areas and schools
5. Good overload capacity and strong heat dissipation
6. Cost-effective, suitable for new construction and renovation projects
Product Details of S20-M Series 10kV Fully Sealed Oil-Immersed Distribution Transformer
1. Product Introduction
The S20-M series three-phase oil-immersed fully sealed distribution transformer is designed and manufactured in compliance with China's GB 20052-2024 national standard, classified as a Class II energy-efficient transformer. Featuring high-permeability grain-oriented silicon steel sheets, full copper windings, and a fully sealed corrugated oil tank structure, this product delivers low energy loss, stable operation, extended service life, and maintenance-free performance. Widely applicable to power grid, industrial, commercial, and public building distribution systems, it stands as the cost-effective mainstream energy-saving transformer for both new construction and retrofit projects.
2. Core Technical Specifications(Customizable)
• Rated Capacity: 30kVA to 2500kVA • Rated Voltage: 10kV ±2×2.5%/0.4kV • Rated Frequency: 50Hz • Phase Configuration: Three-phase • Connection Group: Dyn11/Yyn0 • Cooling Method: ONAN natural oil circulation self-cooling • Insulation Class: Class A • Impedance Voltage: 4%–6% (capacity-dependent) • Protection Rating: IP54 • Energy Efficiency Rating: GB 20052-2024 Class II • Operating Environment: Outdoor temperatures ranging from-25°C to +40°C
3. Key Features
1. Class II energy efficiency demonstrates superior power loss performance compared to traditional S9/S11 models, featuring lower no-load and load losses that significantly reduce long-term electricity costs while complying with national energy conservation policies.
2. Fully sealed structure with maintenance-free operation. The corrugated oil tank's complete sealing design effectively isolates air and moisture, preventing insulation oil from oxidation and aging. This ensures long-term maintenance-free operation and oil leakage-free performance, significantly reducing operational workload.
3. Superior short-circuit resistance: The all-copper windings paired with a robust support structure deliver exceptional mechanical strength, effectively withstanding sudden short-circuit surges for safe and stable operation.
4. The low-noise and low-vibration design is achieved by optimizing the core structure and laminating process, effectively reducing magnetic hysteresis loss and vibration noise. This makes it suitable for noise-sensitive areas such as residential zones, schools, and hospitals.
5. Strong environmental adaptability allows installation in various scenarios including outdoor environments, container substations, and platforms. It exhibits resistance to extreme temperatures, moisture, and dust, making it suitable for diverse complex operating conditions.
6. High cost-performance ratio with broad applicability, balancing energy efficiency and cost, offering lower procurement costs compared to Class I energy-efficient products. It is a cost-effective choice for new projects, power grid upgrades, and industrial/commercial power distribution.
4. Application Scenarios
• New construction and renovation projects for urban and rural power grids • Industrial parks, factories, mines, and enterprise distribution rooms • Residential communities, commercial complexes, hotels, and office buildings • Public buildings including schools, hospitals, stations, and municipal facilities • Box-type substations and outdoor platform distribution systems • Various distribution projects requiring energy efficiency and reliability with moderate budgets. Could you provide comparative brief versions of S20/S22/S23 standards for direct use in documentation?
