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Types of Transformers: Dry Type and Oil Immersed
Transformers are essential components in electrical distribution systems, playing a crucial role in voltage regulation and energy efficiency. Among the various types of transformers, dry type and oil immersed transformers are the most commonly used, especially for medium voltage applications. Dry type transformers are known for their safety and low maintenance requirements, making them ideal for indoor installations. They use air as the cooling medium, which eliminates the risk of oil leaks and environmental hazards.
| SC(B)10 | Rated capacity （KVA） | Voltage combination（KV） | No-load losses（W） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| SC10-30 | 30 | 6,6.3,6.6,10,11/0.4 | 190 | 710 | 2.4 | 4.0 |
| SC10-50 | 50 | 6,6.3,6.6,10,11/0.4 | 270 | 1000 | 2.4 | 4.0 |
| SC10-80 | 80 | 6,6.3,6.6,10,11/0.4 | 370 | 1380 | 1.8 | 4.0 |
| SC10-100 | 100 | 6,6.3,6.6,10,11/0.4 | 400 | 1570 | 1.8 | 4.0 |
| SC10-125 | 125 | 6,6.3,6.6,10,11/0.4 | 470 | 1850 | 1.6 | 4.0 |
| SCB10-160 | 160 | 6,6.3,6.6,10,11/0.4 | 550 | 2130 | 1.6 | 4.0 |
| SCB10-200 | 200 | 6,6.3,6.6,10,11/0.4 | 630 | 2530 | 1.4 | 4.0 |
| SCB10-250 | 250 | 6,6.3,6.6,10,11/0.4 | 720 | 2760 | 1.4 | 4.0 |
| SCB10-315 | 315 | 6,6.3,6.6,10,11/0.4 | 880 | 3470 | 1.2 | 4.0 |
| SCB10-400 | 400 | 6,6.3,6.6,10,11/0.4 | 980 | 3990 | 1.2 | 4.0 |
| SCB10-500 | 500 | 6,6.3,6.6,10,11/0.4 | 1160 | 4880 | 1.2 | 4.0 |
| SCB10-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1350 | 5880 | 1.0 | 4.0 |
| SCB10-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1300 | 5960 | 1.0 | 6.0 |
| SCB10-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1520 | 6960 | 1.0 | 6.0 |
| SCB10-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1770 | 8130 | 1.0 | 6.0 |
| SCB10-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 2090 | 9690 | 1.0 | 6.0 |
| SCB10-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 2450 | 11730 | 1.0 | 6.0 |
| SCB10-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 3050 | 14450 | 0.8 | 6.0 |
| SCB10-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 3600 | 17170 | 0.8 | 6.0 |
On the other hand, oil immersed transformers utilize oil as a cooling and insulating medium. This type allows for higher power ratings and is typically used in outdoor applications. The oil not only provides excellent thermal conductivity but also protects the internal components from moisture and dust. Choosing between these two types depends on factors such as installation location, safety requirements, and cost considerations.
Medium Voltage Transformers in China
China has emerged as a leading manufacturer of medium voltage transformers, catering to both domestic and international markets. Many factories in China specialize in producing various types of transformers, including dry type and oil immersed versions. These manufacturers often leverage advanced technology and quality control measures to ensure that their products meet international standards.
Moreover, sourcing transformers from China can be cost-effective. Businesses looking for reliable suppliers often find that Chinese factories offer competitive pricing without compromising on quality. With a diverse range of options available, companies can easily find the most suitable transformers for their specific needs, whether they require high efficiency or budget-friendly solutions.
Finding the Cheapest Suppliers and Resources
When searching for the cheapest suppliers of transformers, it’s essential to conduct thorough research. Online platforms and trade directories are excellent resources for comparing prices and finding reputable manufacturers. Many suppliers in China offer videos showcasing their production processes and product features, which can be helpful for potential buyers in making informed decisions.
Additionally, attending trade shows and industry expos can provide valuable insights into the latest innovations and trends in transformer manufacturing. Engaging directly with suppliers allows customers to negotiate better deals and gain firsthand knowledge about the products. By leveraging these resources, businesses can secure the best prices while ensuring the quality of their transformers remains intact.
