Table of Contents
Understanding Dry Type and Liquid Immersed Transformers
Dry type transformers are designed without any liquid insulation, relying instead on air or resin for cooling. They are particularly useful in environments where safety and fire risk are major concerns, such as schools and commercial buildings. Due to their design, these transformers are more environmentally friendly and require less maintenance compared to their liquid-immersed counterparts.
On the other hand, liquid immersed transformers utilize oil as both an insulator and a coolant. This design allows for higher power ratings and better thermal management. The oil helps to dissipate heat more effectively, making these transformers suitable for heavy industrial applications. However, they do come with risks, including potential leaks and environmental hazards that need to be carefully managed.
The Role of Medium Voltage Transformers in China
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load current (%) | Short-circuit impedance (%) |
| SC13-30 | 30 | 6,6.3,6.6,10,11/0.4 | 150 | 710 | 2.3 | 4.0 |
| SC13-50 | 50 | 6,6.3,6.6,10,11/0.4 | 215 | 1000 | 2.2 | 4.0 |
| SC13-80 | 80 | 6,6.3,6.6,10,11/0.4 | 295 | 1380 | 1.7 | 4.0 |
| SC13-100 | 100 | 6,6.3,6.6,10,11/0.4 | 320 | 1570 | 1.7 | 4.0 |
| SC13-125 | 125 | 6,6.3,6.6,10,11/0.4 | 375 | 1850 | 1.5 | 4.0 |
| SCB13-160 | 160 | 6,6.3,6.6,10,11/0.4 | 430 | 2130 | 1.5 | 4.0 |
| SCB13-200 | 200 | 6,6.3,6.6,10,11/0.4 | 495 | 2530 | 1.3 | 4.0 |
| SCB13-250 | 250 | 6,6.3,6.6,10,11/0.4 | 575 | 2760 | 1.3 | 4.0 |
| SCB13-315 | 315 | 6,6.3,6.6,10,11/0.4 | 705 | 3470 | 1.1 | 4.0 |
| SCB13-400 | 400 | 6,6.3,6.6,10,11/0.4 | 785 | 3990 | 1.1 | 4.0 |
| SCB13-500 | 500 | 6,6.3,6.6,10,11/0.4 | 930 | 4880 | 1.1 | 4.0 |
| SCB13-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1070 | 5880 | 0.9 | 4.0 |
| SCB13-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1040 | 5960 | 0.9 | 6.0 |
| SCB13-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1210 | 6960 | 0.9 | 6.0 |
| SCB13-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1410 | 8130 | 0.9 | 6.0 |
| SCB13-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 1670 | 9690 | 0.9 | 6.0 |
| SCB13-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 1960 | 11700 | 0.9 | 6.0 |
| SCB13-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 2440 | 14400 | 0.7 | 6.0 |
| SCB13-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 2880 | 17100 | 0.7 | 6.0 |
In China, medium voltage transformers play a crucial role in the electrical distribution grid. They help in stepping down high voltage electricity to a level that is safe and usable for local consumption. With the rapid growth of urban areas and industrial zones, the demand for reliable medium voltage solutions has surged, prompting enterprises to specialize in this field.

Chinese companies are increasingly focusing on advanced technology and innovation in transformer manufacturing. Many have established themselves as specialists in dry type and liquid immersed transformers, catering to both domestic and international markets. Their commitment to quality and efficiency has placed them at the forefront of the industry, allowing them to compete effectively on a global scale.
Expertise of Veteran Specialists in Transformer Technology
Veteran specialists in the transformer industry possess extensive knowledge and experience that are invaluable to the design and implementation of these systems. Their expertise allows them to address complex challenges related to performance, safety, and compliance with regulatory standards. Many of these experts have been involved in the development of cutting-edge technologies that improve transformer efficiency and reliability.
Chinese enterprises often showcase their specialists through informative videos that highlight their capabilities and innovations. These visual presentations serve a dual purpose: educating potential clients about the products and demonstrating the depth of knowledge within the company. By leveraging modern media, these firms can reach a wider audience while establishing themselves as high-class providers in the global market.

