Capacity: 31500kVA-420000kVA
Voltage: 220KV 230KV
Series: Oil immersed Transformer
USES: Power plants, substations, new energy wind farms and photovoltaic power stations,ect.
Our company’s 220kV oil-immersed energy-saving transformers feature low losses, low noise, low temperature rise, high reliability, zero leakage, and are maintenance-free. All technical specifications meet internationally advanced standards.
They are widely used in the power systems of power plants, substations, renewable energy wind farms and photovoltaic power plants, as well as large-scale industrial and mining enterprises such as the petrochemical industry. These 220kV oil-immersed energy-saving transformers include both on-load and off-excitation voltage regulation types, suitable for three-phase, 50Hz, power systems operating at voltages of 220kV and below.
Performance Advantages
1. Low Loss: Through specialized electromagnetic design and manufacturing processes, no-load losses are reduced by 20% and loaded losses by 5% compared to national standards, resulting in significant energy savings.
2. Low Noise: Exclusive noise reduction technology is applied in multiple locations to address electromagnetic and mechanical noise sources, reducing transformer noise by 3-5 dB(A) compared to national standards.
3. Strong Short-Circuit Resistance: The product has passed the sudden short-circuit test conducted by the National Transformer Quality Inspection and Testing Center, verifying its reliability in withstanding short-circuit shocks.
1. The core features a six-level joint, a fully inclined, non-porous structure, and a continuous upper and lower yoke design, effectively reducing no-load losses and noise.
2. The fuel tank adopts a flat-top structure, with the top and bottom cut from a single piece of steel plate, providing strong overall rigidity. The tank is manufactured using a pre-assembled process, undergoes rigorous leak testing, and is sandblasted for rust removal to ensure high-quality coating and long-term corrosion resistance.
| Rated Capacity (kVA) | Voltage Combination and Tapping Range (kV) | HV (kV) | LV (kV) | Vector Group | No-Load Loss (kW) | Load Loss (kW) | No-Load Current (%) | Capacity Allocation (kVA) | Impedance (%) |
| 10000 | 220kV±8×1.25%/11kV | 220 | 6.3 | YNd11 | 10.8 | 38 | 0.17 | 10000/3333/3333 | 10.5 |
| 12500 | 6.6 | 12.7 | 45 | 0.15 | 12500/4166/4166 | ||||
| 16000 | 6.6 | 15.4 | 54 | 0.14 | 16000/5333/5333 | ||||
| 20000 | 6.6 | 18.5 | 65 | 0.13 | 20000/6666/6666 | ||||
| 25000 | 6.6 | 22.2 | 78 | 0.11 | 25000/8333/8333 | ||||
| 31500 | 6.6 | 27.4 | 94 | 0.10 | 31500/10500/10500 | ||||
| 40000 | 220kV±8×1.25%/35kV | 220 | 35 | YNd11 | 33 | 112 | 0.09 | 40000/13333/13333 | 12-14 |
| 50000 | 35 | 40 | 132 | 0.08 | 50000/16666/16666 | ||||
| 63000 | 35 | 49 | 158 | 0.07 | 63000/21000/21000 | ||||
| 75000 | 35 | 57 | 180 | 0.06 | 75000/25000/25000 | ||||
| 80000 | 220kV±8×1.25%/35kV | 220 | 35 | YNd11 | 60 | 190 | 0.06 | 80000/26666/26666 | 12-14 |
| 90000 | 67 | 210 | 0.05 | 90000/30000/30000 |
Notice: There is a chance that WEIJI may make changes on above-mentioned information. Product pictures and parameters about models, data, performances and specifications on this website are for reference only.
