Oil-immersed new energy-efficient distribution transformers are designed to improve energy saving, operational reliability, and operating costs through a series of technological innovations. They serve as key equipment for building a green, efficient, and stable new power system.
Choosing these transformers means lower long-term operating costs, higher system reliability, and support for global carbon neutrality targets.
Stronger Short-circuit Withstand CapabilityThrough an innovative coil structure design such as an elliptical-like configuration, the ampere-turn magnetic circuit distribution is more uniform, effectively reducing mechanical stress during short circuits.
Superior Overload CapacityDuring grid fluctuations or short-term overload operation, the transformer maintains stable power supply, reducing the risk of unexpected power outages.
Lower NoiseMeasured noise levels are well below the limits defined by international and domestic standards, including IEC and GB.
Higher ReliabilityAdvanced process technologies, including core lamination and automatic winding, ensure enhanced operational reliability.
Longer Service LifeThe fully sealed structure isolates external air, preventing moisture ingress and oxidation of the oil and insulating materials. This enables maintenance-free operation and slows material aging.
Lower LossNo-load loss and load loss values are lower than the requirements specified in relevant energy efficiency standards, delivering significant energy-saving performance.
Lower Temperature RiseMeasured temperature rise values are significantly lower than applicable standards, providing strong overload capacity.
| Rated Capacity (kVA) |
No-Load Loss (W) |
Load Loss (W) |
No-Load Current (%) |
Weight (kg) | Dimensions (mm) L×W×H |
Installation Gauge (mm) |
Short-Circuit Impedance (%) |
Connection Symbol |
Voltage Combination and Tapping Range |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oil | Total | HV (kV) | Tapping Range of HV (%) |
LV (kV) | ||||||||
| 30 | 65 | 455/430 | 1.2 | 130 | 620 | 870×620×970 | 400 | 4 | Dyn11 Yzn11 Yn0 |
6 6.3 10 10.5 11 24 |
±5 ±2×2.5 |
0.4 0.8 |
| 50 | 80 | 655/625 | 1.2 | 140 | 680 | 890×620×1020 | 400 | 4 | Dyn11 Yzn11 Yn0 |
6 6.3 10 10.5 11 24 |
±5 ±2×2.5 |
0.4 0.8 |
| 63 | 90 | 785/745 | 1 | 150 | 700 | 890×650×1020 | 400 | 4 | Dyn11 Yzn11 Yn0 |
6 6.3 10 10.5 11 24 |
±5 ±2×2.5 |
0.4 0.8 |
| 80 | 105 | 945/900 | 1 | 160 | 750 | 950×680×1050 | 400 | 4 | Dyn11 Yzn11 Yn0 |
6 6.3 10 10.5 11 24 |
±5 ±2×2.5 |
0.4 0.8 |
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