S20 Energy Efficiency Stage 2 Oil-Immersed Transformer
Product Features
- GB20052-2020 standard energy-saving product
• Energy efficiency Grade 2 (two-stage)
• No-load loss and noise reduction through optimized design
• Noise level decreased by 20% compared to JB/T10088-2016
• Advanced iron core and coil structure
• High reliability and long service life
• Environmentally friendly and energy-saving
• Suitable for urban and rural distribution networks
S20 Energy Efficiency Stage 2 Oil Transformer
Type Meaning (Model Code)
S 20 – M – □ / □ – NX2
S: Three-phase
20: Performance level code
M: Fully sealed
□: Rated capacity (kVA)
□: Voltage level (kV)
NX2: Energy efficiency level (Grade 2)
Example: S20-M-100/10-NX2 means Three-phase, Performance level 20, Fully sealed, 100kVA capacity, 10kV voltage level, Energy efficiency Grade 2.
Product Overview
GB20052-2020 standard energy-saving product energy-efficiency two-stage oil immersed bed transformer is a product independently developed by our company through the combination of research and application of new materials and new technology, independent innovation and technology introduction, and through the optimization and innovation of new design of iron core and coil structure to achieve the purpose of reducing no-load loss and noise.
Compared with the current national standard JB/T10088-2016, the noise level decreases by an average of 20%, and the product performance level reaches the domestic advanced level.
Product Features
- GB20052-2020 standard energy-saving product
• Energy efficiency Grade 2 (two-stage)
• No-load loss and noise reduction through optimized design
• Noise level decreased by 20% compared to JB/T10088-2016
• Advanced iron core and coil structure
• High reliability and long service life
• Environmentally friendly and energy-saving
• Suitable for urban and rural distribution networks
Main Technical Parameters
| Type | Rated Capacity (kVA) | Connection Group | Voltage Combination (kV) High/Low |
Tapping Range | No-load Loss (W) | Load Loss (W) Dy/Yy |
Short-circuit Impedance (%) |
| S20-M-30 | 30 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 70 | 505/480 | 4.0 |
| S20-M-50 | 50 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 90 | 730/695 | 4.0 |
| S20-M-63 | 63 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 100 | 870/830 | 4.0 |
| S20-M-80 | 80 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 115 | 1050/1000 | 4.0 |
| S20-M-100 | 100 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 135 | 1265/1200 | 4.0 |
| S20-M-125 | 125 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 150 | 1510/1440 | 4.0 |
| S20-M-160 | 160 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 180 | 1850/1760 | 4.0 |
| S20-M-200 | 200 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 215 | 2185/2080 | 4.0 |
| S20-M-250 | 250 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 260 | 2560/2440 | 4.0 |
| S20-M-315 | 315 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 305 | 3065/2920 | 4.0 |
| S20-M-400 | 400 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 370 | 3615/3440 | 4.0 |
| S20-M-500 | 500 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 430 | 4330/4120 | 4.0 |
| S20-M-630 | 630 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 510 | 4960 | 4.5 |
| S20-M-800 | 800 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 630 | 6000 | 4.5 |
| S20-M-1000 | 1000 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 745 | 8240 | 4.5 |
| S20-M-1250 | 1250 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 870 | 9600 | 4.5 |
| S20-M-1600 | 1600 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 1050 | 11600 | 4.5 |
| S20-M-2000 | 2000 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 1225 | 14640 | 4.5 |
| S20-M-2500 | 2500 | Yyn0 or Dyn11 | 10 6.3 6 / 0.4 | ±5% ±2×2.5% | 1440 | 14840 | 5.0 |
Additional information
| Model Series | S20 Energy Efficiency Stage 2 Oil-Immersed Transformer |
|---|---|
| Connection group grade | Yyn0 or Dyn11 |
| Rated capacity(KVA) | 30 ~ 2500 (KVA) |
| High voltage (kV) | 10kV / 6.3kV / 6(kV) |
| Low voltage(kV) | 0.4(kV) |
| Short-circuit resistance(%) | 4.0 / 4.5 / 5 / According to customer needs |
| Tapping range | +5% |
Shippment
Our Logistics and Shipping Process
We provide a comprehensive logistics service, ensuring transparency and safety from our factory floor to your designated port or site.
| Step | Activity | Details |
| 1 | Booking & Planning | We book containers and coordinate schedules based on your requirement (FOB, CIF, DDP, etc.). |
| 2 | Pre-Shipment Inspection | Every unit undergoes a final check before packing, with a packing list and photos provided. |
| 3 | Packing & Loading | Specialized packing teams secure units . Loading is supervised to ensure safe container stuffing. |
| 4 | Customs Clearance | We handle all export documentation, including certificates of origin, and bill of lading. |
| 5 | Real-Time Tracking | We provide you with the container number and a tracking link to monitor the shipment in real time. |
Payment
Accepted Payment Currency:USD,EUR,JPY,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
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