Low Loss Oltc Transformer
The 110kV three-winding tap-changing transformer is a core power device in high-voltage power grids, mainly used to achieve the conversion, distribution, and precise voltage regulation of 110kV level electrical energy.
The 110kV three-winding tap-changing transformer is a core power device in high-voltage power grids, mainly used to achieve the conversion, distribution, and precise voltage regulation of 110kV level electrical energy. It is widely applicable in scenarios such as urban power supply, industrial production, and new energy grid connection, serving as a key "energy hub" connecting high-voltage transmission lines with medium- and low-voltage distribution networks. With the advantages of multi-voltage outputs from its three-winding structure and the stability of its voltage regulation function, it can meet the low-loss requirements of long-distance transmission while ensuring the safe and stable operation of downstream electrical equipment. In the power system, it undertakes the dual core missions of "energy transfer" and "voltage stabilization."
The core advantages of the SFSZ11 110kV three-phase three-winding on-load tap-changer power transformer lie in high efficiency and energy saving, multiple voltage regulation capabilities, reliable structure, and intelligent operation and maintenance. It is suitable for large substations, power plants, and high-load industrial power supply systems.
SFSZ11 type 110kV class 6300kVA-63000kVA three-phase three-winding on-load tap-changing power transformer
| Rated Capacity (kVA) | Rated Voltage(kV) | Connection Group | Damage (kW) | No-load current (%) | Noise | Short-circuit impedance (%) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| High pressure | Medium pressure | Low pressure | Damage (kW) | Load | Boost | Noise | ||||
| 6300 | 110 121±8×1.25% |
35 38.5 |
6.3 6.6 10.5 11 |
Ynyn0d11 | 11.20 | 47.70 | 1.00 | 60 | High-Medium 17-18 High-Low 10.5 Medium-Low 6.5 |
High-Medium 10.5 High-Low 17-18 Medium-Low 6.5 |
| 8000 | 13.30 | 56.70 | 0.95 | 60 | ||||||
| 10000 | 15.80 | 66.60 | 0.90 | 61 | ||||||
| 12500 | 18.40 | 78.30 | 0.85 | 61 | ||||||
| 16000 | 22.40 | 95.40 | 0.80 | 61 | ||||||
| 20000 | 26.40 | 112.50 | 0.75 | 62 | ||||||
| 25000 | 30.80 | 133.20 | 0.70 | 62 | ||||||
| 31500 | 36.80 | 157.50 | 0.65 | 62 | ||||||
| 40000 | 43.60 | 189.00 | 0.55 | 62 | ||||||
| 50000 | 52.00 | 225.00 | 0.50 | 62 | ||||||
| 63000 | 110 121±8×1.25% |
35 38.5 |
6.3 6.6 10.5 11 |
Ynyn0d11 | 61.60 | 270.00 | 0.50 | 62 | High-Medium 17-18 High-Low 10.5 Medium-Low 6.5 |
High-Medium 10.5 High-Low 17-18 Medium-Low 6.5 |