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20KV High Voltage Oil-immersed Distribution Transformer
Product Application
This transformer is ideal for use in a wide range of industrial applications, including but not limited to real estate developments, oil refineries, metal smelting plants, chemical processing facilities, and light industrial complexes. It is specifically engineered to meet the demanding power distribution requirements of these industries, ensuring stable and efficient electricity supply.
Product Advantages
● High-quality magnetic grain-oriented silicon steel is used for optimal performance and energy efficiency.
● The coil winding is crafted from premium raw materials using the latest technology, ensuring reliability and longevity.
● Equipped with a pressure release valve, the 30-2000KVA transformer ensures safe operation under varying load conditions.
● The transformer is fitted with an oil temperature monitoring device to prevent overheating and ensure operational safety.
● The corrugated surface of the oil tank, coated with a dust spraying process, enhances heat dissipation for improved performance.
● Utilizing vacuum oil injection technology, the transformer achieves higher insulation performance by eliminating contact with air.
Product Features
● High-quality materials and advanced technology ensure superior performance and durability.
● Safety features such as pressure release valves and oil temperature monitoring enhance operational reliability.
● The innovative design of the oil tank improves heat dissipation, contributing to the transformer’s efficiency.
● Vacuum oil injection technology enhances insulation performance, ensuring reliable and safe operation.
In conclusion, our high voltage oil-immersed distribution transformer is a versatile and dependable solution for industrial power distribution needs. With its advanced features, high-quality materials, and safety enhancements, it offers a reliable and efficient power distribution solution for a wide range of industrial applications.
Normal service conditions
Altitude
No more than 1000m;
Environmental temperature:
The maximum temperature is+40℃;
The maximum monthly average temperature is +30℃;
The maximum annual average temperature is +20℃;
The outdoor minimum temperature is -25℃。
The waveform of power supply voltage is similar to sine wave.
For three-phase transformer,its three-phase supply voltage should be approximately symmetrical. Installation environment:
There is no obvious pollution in the installation envionment;
The ground acceleration ag caused by earthquake is lower than 3m/s²in the horizontal direction and 1.5m/s² in the vertical direction.
Executive standard
GB/T1094.1 GB/T1094.2 GB/T1094.3 GB/T1094.5
GB/T25289 GB/T6451 GB/T7595 GB20052
JB/T3837 JB/T10088 IEC60076
The transformer products produced by our company all meet the latest version of the above standards.
Special Conditions of Use
Any special use conditions that need to meet the normal use conditions of the transformer shall be stated in the inquiry and order.
Ordering instructions
When ordering,the product model,rated capacity,rated voltage of high and low voltage,high voltage distribution range,phase number,frequency,connection group label,etc.shall be provided.
Model and meaning
20kV Oil-immersed power transformer
Technical parameters of 20kV S11 series oil-immersed non-excitation voltage regulating transformer
| Rated capacity kV.A | Voltage combination kV | Connecting group | No-load loss kW | Load loss kW | No-load current % | Short-circuit impedance % | ||
| High voltage | High voltage tap range | Low voltage | ||||||
| 30 | 20 | ±5h ±2×25 |
0.4 | Dyn11 Yzn11 Yyn0 |
0.10 | 0.69/0.66 | 2.1 | 5.5 |
| 50 | 0.13 | 1.01/0.96 | 2.0 | |||||
| 63 | 0.15 | 1.20/1.15 | 1.9 | |||||
| 80 | 0.18 | 1.44/1.37 | 1.8 | |||||
| 100 | 0.20 | 1.73/1.65 | 1.6 | |||||
| 125 | 0.24 | 2.08/1.98 | 1.5 | |||||
| 160 | 0.29 | 2.54/2.42 | 1.4 | |||||
| 200 | 0.34 | 3.00/2.86 | 1.3 | |||||
| 250 | 0.40 | 3.52/3.35 | 1.2 | |||||
| 315 | 0.48 | 4.21/4.01 | 1.1 | |||||
| 400 | 0.57 | 4.97/4.73 | 1.0 | |||||
| 500 | 0.68 | 5.94/5.66 | 1.0 | |||||
| 630 | 0.81 | 6.82 | 0.9 | 6.0 | ||||
| 800 | 0.98 | 8.25 | 0.8 | |||||
| 1000 | 1.15 | 11.33 | 0.7 | |||||
| 1250 | 1.38 | 13.20 | 0.7 | |||||
| 1600 | 1.66 | 15.95 | 0.6 | |||||
| 2000 | 1.95 | 19.14 | 0.6 | |||||
| 2500 | 2.34 | 22.22 | 0.5 | |||||
Note:
① For three-phase transformers with rated capacity of500kVA or less,the load loss value above the diagonal line in the table is applicable to Dyn11or Yzn11 connection group,and the loss value below the diagonal line is applicable to Yyn0 connection group.
② The performance parameters in the table are also applicable to three-phase transformers with high voltage of 20(10)kV.
Technical parameters of 20kV S12 series oil-immersed non-excitation voltage regulating transformer
| Rated capacity kV.A | Voltage combination kV | Connecting group | No-load loss kW | Load loss kW | No-load current % | Short-circuit impedance % | ||
| High voltage | High voltage tap range | Low voltage | ||||||
| 30 | 20 | ±5h ±2×2.5 |
0.4 | Dyn11 Yzn11 Yyn0 |
0.09 | 0.69/0.66 | 2.1 | 5.5 |
| 50 | 0.12 | 1.01/0.96 | 2.0 | |||||
| 63 | 0.14 | 1.20/1.15 | 1.9 | |||||
| 80 | 0.16 | 1.44/1.37 | 1.8 | |||||
| 100 | 0.18 | 1.73/1.65 | 1.6 | |||||
| 125 | 0.22 | 2.08/1.98 | 1.5 | |||||
| 160 | 0.26 | 2.54/2.42 | 1.4 | |||||
| 200 | 0.31 | 3.00/2.86 | 1.3 | |||||
| 250 | 0.36 | 3.52/3.35 | 1.2 | |||||
| 315 | 0.43 | 4.21/4.01 | 1.1 | |||||
| 400 | 0.51 | 4.97/4.73 | 1.0 | |||||
| 500 | 0.61 | 5.94/5.66 | 1.0 | |||||
| 630 | 0.73 | 6.82 | 0.9 | 6.0 | ||||
| 800 | 0.88 | 8.25 | 0.8 | |||||
| 1000 | 1.03 | 11.33 | 0.7 | |||||
| 1250 | 1.24 | 13.20 | 0.7 | |||||
| 1600 | 1.49 | 15.95 | 0.6 | |||||
| 2000 | 1.75 | 19.14 | 0.6 | |||||
| 2500 | 2.10 | 22.22 | 0.5 | |||||
Note:
① For three-phase transformers with rated capacity of 500kVA or less,the load loss value above the diagonal line in the table is applicable to Dyn11or YZn11 connection group,and the loss value below the diagonal line is applicable to Yyn0 connection group.
② The performance parameters in the table are also applicable to three-phase transformers with high voltage of 20(10)kV