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Types of Transformers: Dry Type vs. Oil Immersed
Transformers are essential components in electrical systems, and they come in different types based on their design and application. The two most common types are dry type transformers and oil immersed transformers. Dry type transformers are known for their safety, as they don’t use flammable liquids for cooling. This makes them suitable for indoor installations where fire hazards must be minimized.
Oil immersed transformers, on the other hand, utilize oil as both a coolant and an insulator. This type is typically preferred for outdoor applications due to its ability to handle larger loads and higher voltages. The oil not only aids in cooling but also provides excellent insulation properties, making it an efficient choice for medium voltage applications.
The choice between dry type and oil immersed transformers often depends on specific project requirements, including installation environment, load capacity, and maintenance considerations. Each type has its own advantages, and understanding these can help in selecting the right transformer for your needs.
Medium Voltage Transformers in China
China has emerged as a significant player in the manufacturing and exporting of medium voltage transformers. These transformers are designed to operate effectively within voltage ranges typically between 1 kV and 35 kV. With the rapid industrialization and urbanization in China, the demand for reliable medium voltage transformers has surged, leading to advancements in technology and production methods.
Chinese manufacturers are increasingly focusing on quality control and compliance with international standards. Many factories have obtained ISO 9001 and ISO 14001 certifications, ensuring that their products meet high-quality benchmarks while adhering to environmental management practices. This commitment to quality has made Chinese exporters a preferred choice for many international clients.
In addition to quality assurance, Chinese transformer makers are leveraging modern technology to enhance efficiency and performance. By integrating smart technologies and automation into their manufacturing processes, they can produce transformers that are not only reliable but also energy-efficient, meeting the evolving demands of modern electrical grids.

The Future of Transformer Manufacturing
As the global demand for energy continues to rise, the transformer industry is set to undergo significant transformations. Innovations in design and materials are paving the way for more efficient and sustainable transformers. Manufacturers are exploring new technologies such as renewable energy integration and smart grid solutions, which will play a crucial role in the future of power distribution.
Moreover, video content showcasing transformer manufacturing processes and product features is becoming increasingly popular. These videos serve as valuable marketing tools, allowing potential customers to visualize the capabilities and specifications of various transformer models. Engaging visual content can also help demystify complex concepts related to transformer technology, making it easier for clients to make informed decisions.
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load current (%) | Short-circuit impedance (%) |
| SC12-30 | 30 | 6,6.3,6.6,10,11/0.4 | 150 | 710 | 2.0 | 4.0 |
| SC12-50 | 50 | 6,6.3,6.6,10,11/0.4 | 215 | 1000 | 2.0 | 4.0 |
| SC12-80 | 80 | 6,6.3,6.6,10,11/0.4 | 295 | 1380 | 1.5 | 4.0 |
| SC12-100 | 100 | 6,6.3,6.6,10,11/0.4 | 320 | 1570 | 1.5 | 4.0 |
| SC12-125 | 125 | 6,6.3,6.6,10,11/0.4 | 375 | 1850 | 1.3 | 4.0 |
| SCB12-160 | 160 | 6,6.3,6.6,10,11/0.4 | 430 | 2130 | 1.3 | 4.0 |
| SCB12-200 | 200 | 6,6.3,6.6,10,11/0.4 | 495 | 2530 | 1.1 | 4.0 |
| SCB12-250 | 250 | 6,6.3,6.6,10,11/0.4 | 575 | 2760 | 1.1 | 4.0 |
| SCB12-315 | 315 | 6,6.3,6.6,10,11/0.4 | 705 | 3470 | 1.0 | 4.0 |
| SCB12-400 | 400 | 6,6.3,6.6,10,11/0.4 | 785 | 3990 | 1.0 | 4.0 |
| SCB12-500 | 500 | 6,6.3,6.6,10,11/0.4 | 930 | 4880 | 1.0 | 4.0 |
| SCB12-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1070 | 5880 | 0.85 | 4.0 |
| SCB12-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1040 | 5960 | 0.85 | 6.0 |
| SCB12-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1210 | 6960 | 0.85 | 6.0 |
| SCB12-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1410 | 8130 | 0.85 | 6.0 |
| SCB12-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 1670 | 9690 | 0.85 | 6.0 |
| SCB12-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 1960 | 11700 | 0.85 | 6.0 |
| SCB12-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 2440 | 14400 | 0.7 | 6.0 |
| SCB12-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 2880 | 17100 | 0.7 | 6.0 |
As the landscape of transformer manufacturing evolves, companies that prioritize quality, innovation, and customer education will be well-positioned to lead the market. Embracing new trends and technologies will ensure that manufacturers stay competitive in a rapidly changing industry.

