1、 Product Features

The three-phase oil immersed distribution transformer produced by our company adopts a new insulation structure on the body, which improves the ability to resist short circuits; The iron core is made of high-quality cold-rolled silicon steel sheets; High and low voltage windings are made of high-quality oxygen free copper material and adopt a multi-layer cylindrical structure; All sturdy components are treated with special anti loosening measures.

The product has the characteristics of high efficiency and low loss, which can save a lot of electricity consumption and operating costs, and has significant social benefits. It is a high-tech product promoted by the country.

2、 Reliable structure

Our company has made many improvements based on traditional structure and mature technology, such as adopting:

1. Spiral coil with longitudinal oil passage for better internal heat dissipation;

2. Improved the effective support of the coil end face, with stronger resistance to short-circuit current;

3. New lifting and positioning structures have been adopted to ensure greater reliability during long-distance transportation and operation;

4. We have many unique and reliable structures to serve you;

5. Choosing transformers with higher performance levels will have a higher level of technological content.

3、 High quality materials

Choose oxygen free copper wire with lower resistivity and undergo a series of additional surface treatments to make it smoother, without burrs or sharp corners, resulting in lower load loss and more reliable electrical performance of the transformer.

Select high-quality silicon steel sheets, and with the improvement of performance level, use silicon steel sheets with lower unit loss to reduce the no-load loss of transformers.

High quality laminated wood insulation is selected, which will never crack, even under the action of short-circuit current, and will remain unchanged.

Using transformer oil that has undergone deep filtration results in lower levels of water, gas, and impurities, making transformer operation more reliable.

Select high-quality rubber sealing materials to effectively prevent aging and eliminate leakage.

All raw materials undergo quality inspection, effectively preventing aging and eliminating leakage.

All raw materials undergo quality inspection, and all raw material manufacturers undergo strict review in accordance with the national standard ISO9000.

4、 Good technical and economic performance

On the basis of the S9 series, the S11 series products have reduced the average no-load loss by 30%; The no-load current decreases by 70-85% compared to S9; The average temperature rise is reduced by 10K, and the product's service life is more than doubled. Even under overload conditions of 20%, it can still operate for a long time; The average noise reduction during product operation is 2-4 decibels.

5、 Fully sealed

The M in S11 (M) R indicates that the oil tank adopts a fully sealed structure. Compared with ordinary oil immersed transformers, fully sealed distribution transformers eliminate oil storage tanks and replace oil pipes with wave fins as cooling and heat dissipation components. The wave fins of the oil tank are manufactured from high-quality cold-rolled thin plates on a dedicated production line. The wave fins can expand and contract the volume of transformer oil, thereby isolating the transformer from the atmosphere, preventing and slowing down oil degradation and insulation moisture, enhancing operational reliability, and maintenance free normal operation.

The surface of the corrugated oil tank is treated with degreasing, rust removal, and phosphating before being coated with a three proof paint, which is suitable for use in metallurgical, petrochemical, mining, and other environments.

6、 Transformer product standards

GB 1094.1-1996 GB 1094.2-1996 JB/T10088-2004

GB 1094.3-2003 GB 1094.5-2003 GB/T 10237-1988

GB/T 6451-2008 GB/T 7595-1987 JB/T 3837-2010

7、 Normal use conditions for transformers Special use conditions for transformers

Altitude not exceeding 1000m; Altitude exceeding 1000m;

Environmental temperature: Environmental temperature:

Maximum temperature+40 ℃ Maximum temperature+40 ℃

The average temperature of the hottest month is+30 ℃, and the lowest temperature is -25 ℃

Maximum annual average temperature+20 ℃ Outdoor minimum temperature -25 ℃

8、 Model meaning

9. Technical parameters