Because we use oxygen-free copper lines of lower resistivity, which will become smoother and burr-free after a series of additional surface treatment, the load loss of our transformer is lower and the electric performance is better.

We use high-quality silicon-steel plates, which are of lower unit loss, and the no-load current of the transformers is lower.

We use high-quality wooden laminating insulation pieces, which won't split or move even under the influence of short circuits.

We use thoroughly filtered transformer oil containing less water, gas, and impurities, which makes our transformers work better.

We use high-quality rubber sealing material, which can prevent the transformers from aging or leakage.

All raw materials have passed the quality testing, and all the raw material factories have passed the national standard ISO9000 inspection.

Transformer Normal Service Conditions

The height above sea level is below 1000m;
Ambient temperature:

• Highest air temperature +40℃;

• Highest daily average air temperature +30℃;

• Highest annual average air temperature +20℃;

• Lowest outdoor air temperature -25℃.

Transformer Special Service Conditions

The height above sea level is above 1000m;
Ambient temperature:

• Highest air temperature +40℃;

• Lowest air temperature -45℃;
  (defines in detail when placing an order)

Technical Specifications for Three-Phase Distribution Transformer

Note:

• Tapping range of high-voltage: ±5% or ±2×2.5%

• Frequency: 50Hz

• The above data are for reference only, welcome to inquire, with the actual order.