April 27, 2025
With a tight project schedule, the manufacturer delivered on time, and on-site technical personnel provided guidance throughout the entire installation and commissioning process; the collaboration was highly efficient and hassle-free.
S22 type distribution transformer
1. Voltage Rating: 10kV / 0.4kV
2. Voltage Regulation Method: No-load voltage regulation (no-load voltage regulation)
3. Tap Range: ±2×2.5% or ±5%
4. Connection Group: Dyn111 (preferred), Yyn0
5. Cooling Method: ONAN oil-immersed self-cooling
6. Capacity Range: 30-2500kVA 3. Key Loss Indicators (Level 1 Energy Efficiency)
7. No-load Loss: Approximately 40% lower than S11, approximately 20% lower than S13
8. Load Loss: 10%~15% lower than national standard
9. Energy Efficiency Standard: GB 20052 Level 1 Energy Efficiency
10. Operating Environment: Outdoor/ Indoor units:
11. Standardized design; custom designs available for special requirements.
Product Description
S22 Type Distribution Transformer - Ultra-Low Loss Power Solution
Lijie Electric's S22 type distribution transformer sets the industry benchmark with GB 20052-2024 Level 1 energy efficiency certification. Our transformers deliver approximately 40% lower no-load loss compared to S11 models and 20% lower than S13 units. With capacity ranging from 30-3150kVA and advanced fully-sealed corrugated tank design, you get maintenance-free operation for over 30 years. Manufactured at our 500,000-square-meter facilities by 2,000+ skilled professionals, these transformers feature oxygen-free copper windings and ultra-quiet operation at ≤50-55dB(A).
Why Choose Our Energy-Efficient Transformers?
Superior Energy Savings
You're likely pondering how much you can spare on operational costs. Our control transformers decrease stack misfortunes by 10-15% underneath national benchmarks. This implies your vitality bills drop essentially year after year.
The layered oil tank plan dispenses with the require for oil conservators. You won't spend time or cash on center lifting or oil renewal. Support gets to be for all intents and purposes effortless.
Built to Last Decades
We've built these units for extraordinary toughness. High-permeability silicon steel sheets with ventured joints minimize center misfortunes. Your venture keeps performing dependably for 30+ years.
The oxygen-free copper windings give extraordinary short-circuit resistance. Indeed amid control surges, your item ensures your electrical infrastructure.
Whisper-Quiet Operation
Noise contamination concerns your office? Our transformers work at unimaginably moo clamor levels of 50-55dB(A). That's calmer than typical discussion, making them idealize for private ranges, healing centers, and schools.
Technical Specifications
| Parameter | Specification |
|---|---|
| Energy Efficiency Rating | Level 1 (GB 20052-2024) |
| Voltage Rating | 6kV, 10kV, 12kV / 0.4kV |
| Capacity Range | 30-3150kVA |
| Frequency | 50Hz / 60Hz |
| Number of Phases | Single-phase / Three-phase |
| Connection Group | Dyn11 (preferred), Yyn0 |
| Tap Range | ±5%, ±2×2.5% |
| Voltage Regulation | No-load voltage regulation |
| Cooling Method | ONAN (Oil-immersed self-cooling) |
| Impedance Voltage | Per technical parameter table or custom |
| Insulation Level | AC-35kV withstand, L1-75kV impulse |
| Operating Temperature | Maximum 40℃ outdoor (customizable) |
| Noise Level | ≤50-55dB(A) |
| Expected Lifespan | ≥30 years |
| Core Material | High-permeability silicon steel |
| Winding Material | Oxygen-free copper wire |
| Tank Design | Fully-sealed corrugated structure |
Who Benefits Most?
Industrial Facilities
Your fabricating plant needs steady, proficient control. These transformers handle overwhelming loads whereas minimizing vitality waste.
Commercial Buildings
Office complexes and shopping centers decrease operational costs. Lower vitality utilization implies superior profitability.
Infrastructure Projects
Power network administrators overhauling to Level 1 effectiveness benchmarks believe our innovation. We've provided ventures over Asia, Africa, and Oceania.
Residential Developments
Property designers esteem our calm operation and long-term unwavering quality. Your inhabitants appreciate continuous control without clamor unsettling influences.
Our Manufacturing Excellence
We operate two state-of-the-art facilities in Xuzhou and Nantong. Our 160+ engineers hold advanced degrees and continuously innovate. Every S22 type distribution transformer undergoes rigorous testing at the National Transformer Quality Supervision and Inspection Center.
International certifications include ISO 9001:2015, CE, UL, and IEC compliance. You receive products that meet both Chinese and global standards.
Flexible Customization
Need special voltage ratings? Unique environmental conditions? We customize designs to your exact specifications. Production cycles range from 6-30 days depending on complexity.
Global Service Network
We've exported to 15+ countries including Australia, New Zealand, Malaysia, Indonesia, Egypt, and Kenya. Wherever your project is located, we provide:
- Comprehensive technical documentation
- Installation guidance
- Spare parts supply
- After-sales technical support
- Test reports and certification
Frequently Asked Questions
Q: What makes S22 transformers more efficient than S20 models?
A: S22 units represent the highest GB 20052-2024 Level 1 efficiency standard. They achieve lower no-load and load losses through advanced core materials and optimized winding design.
Q: Do I need to perform regular oil maintenance?
A: No. The fully-sealed corrugated tank design eliminates oil conservators. You won't need core lifting or oil replenishment throughout the transformer's lifespan.
Q: Can these transformers handle outdoor installation?
A: Absolutely. They're designed for both indoor and outdoor environments. We can customize temperature ratings beyond the standard 40℃ maximum for extreme climates.
Q: What's your typical delivery timeframe?
A: Standard models ship within 6-15 days. Custom configurations may take 20-30 days depending on specifications.
Q: How does the noise level compare to older models?
A: Our transformers operate at 50-55dB(A), significantly quieter than traditional units. This makes them suitable for noise-sensitive locations like hospitals and schools.
Q: What certifications do your products carry?
A: We hold ISO 9001:2015, CE, UL, IEC certifications, plus CQC and PCCC energy efficiency verification. All products pass National Transformer Quality Supervision testing.
Invest in Long-Term Efficiency
Ready to reduce your energy costs while ensuring reliable power distribution with S22 type distribution transformer? Contact our technical team at lijieelectrical@gmail.com to discuss your specific requirements today.
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