S22 Oil Immersed Transformer
- Commodity name： S22 Oil Immersed Transformer
Keywords:
Oil-lmmersed Power Transformer
Product Description
S22 series fully sealed oil-immersed transformers are new-generation first-class energy efficiency distribution transformers compliant with GB 20052-2020 and IEC 60076 standards. Featuring ultra-low no-load & load loss, ultra-quiet operation, higher power efficiency and stronger short-circuit resistance compared with S13/S20 models, this maintenance-free oil-filled transformer is the optimal upgrade solution for new energy stations, urban grid upgrading, commercial complexes and high-standard industrial power distribution projects worldwide.
Core Features
Top-tier First-class Energy Efficiency: Comply with the latest national first-level energy efficiency standard, no-load loss reduced by 30%+ compared with S13 series, extremely low operating power consumption and excellent energy-saving & environmental protection effect.
Ultra-low Operating Noise: Precision core lamination and structural vibration damping design, operating noise far lower than traditional models, suitable for residential areas, schools and urban core areas.
Fully Sealed Maintenance-free Structure: Integral welded anti-leakage oil tank and vacuum oil filling technology, no need for regular oil replacement and routine maintenance, greatly reducing operation and maintenance costs.
Superior Short-circuit Resistance: Optimized winding layout and reinforced fastening process, effectively avoid winding deformation under short-circuit impact, ensuring long-term safe and stable operation.
Precise Voltage Regulation: Standard ±2×2.5% off-circuit tap changer, flexible manual voltage adjustment to adapt to various grid voltage fluctuation conditions and stabilize power supply quality.
Strong Environmental Adaptability: Waterproof, dust-proof, anti-corrosion and moisture-proof design, adaptable to outdoor high temperature, high humidity, high altitude and other harsh working environments.
Long Service Life: Premium insulating materials and rigorous production process delay insulation aging effectively, with a service life up to 30 years.
Details Table
|
Technical Item |
Standard Specification |
Unit |
Remarks |
|
Product Model |
S22-M Fully Sealed First-class Energy-saving Type |
- |
Latest generation ultra-low loss transformer |
|
Rated Capacity |
30 ~ 2500 |
kVA |
Full range of conventional capacities customizable |
|
High Voltage Level (HV) |
6 / 10 / 20 / 35 |
kV |
Global mainstream medium voltage grade |
|
Low Voltage Level (LV) |
0.4 / 0.69 / 10.5 |
kV |
0.4kV standard for industrial & civil power |
|
Frequency |
50 / 60 |
Hz |
Adaptable for global power grid projects |
|
Vector Group |
Dyn11 / Yyn0 |
- |
Dyn11 preferred for harmonic suppression |
|
Tap Adjustment Range |
±2×2.5% |
- |
Off-circuit manual tap changer standard |
|
Cooling Method |
ONAN |
- |
Oil Natural Air Natural cooling |
|
Short-circuit Impedance |
4.0% ~ 6.5% |
% |
Depends on capacity & voltage grade |
|
No-load Current |
≤0.5 |
% |
Ultra-low magnetizing current |
|
Operating Noise |
≤52 |
dB |
Quieter than S20/S13 series |
|
Energy Efficiency Grade |
National First-class Energy Efficiency |
- |
Comply with GB 20052-2020 latest standard |
|
Temperature Rise Limit |
Oil: 55K, Winding: 65K |
K |
Safe and stable temperature rise |
|
Insulation Level |
10kV/35kV Grade |
- |
Meet IEC international insulation standard |
|
Service Life |
Up to 30 |
Years |
Long-term reliable operation |
|
Executive Standard |
IEC 60076, GB/T 6451, GB 20052-2020 |
- |
International & latest national energy standard |
Packaging and shipping
Zhonggong Steel (SHANDONG) Group Co., Ltd.boasts strong R&D, design and large-scale production capabilities, specializing in the R&D, manufacturing and sales of oil-immersed, dry-type and prefabricated transformers. Benefiting from a prime location and convenient transportation, our factory covers nearly 15,000 square meters.
application
With reliable quality and mature craftsmanship, we rigorously control every production process. We deliver cost-effective, safe and stable transformers and premium services for global clients. Our products are well-sold at home and abroad, enjoying high recognition and trust worldwide.
factory
Equipped with advanced production and precision testing equipment, we have established a sound quality control system and standardized management. With reliable quality and mature craftsmanship, we rigorously control every production process. We deliver cost-effective, safe and stable transformers and premium services for global clients. Our products are well-sold at home and abroad, enjoying high recognition and trust worldwide.
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Dongchangfu District, Liaocheng City, Shandong Province
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