Comparing Dry Type and Oil Filled Transformers

Transformers are essential components in electrical systems, as they help to regulate voltage Levels and ensure the safe and efficient distribution of electricity. When it comes to transformers, there are two main types that are commonly used: dry type transformers and oil-filled transformers. In this article, we will compare these two types of transformers and discuss their advantages and disadvantages.

Dry type transformers, as the name suggests, do not use oil as a cooling medium. Instead, they rely on air to dissipate heat and keep the transformer cool. This makes them a popular choice for indoor applications where the use of oil may not be practical or safe. Dry type transformers are also more environmentally friendly, as they do not pose the risk of oil leaks or spills.

On the other hand, oil-filled transformers use oil as a cooling medium to dissipate heat generated during operation. The oil helps to transfer heat away from the transformer windings, keeping them cool and ensuring efficient operation. Oil-filled transformers are typically used in outdoor applications or in areas where fire Safety is a concern, as the oil helps to suppress any potential fires that may occur.

alt-445
One of the main advantages of dry type transformers is their low maintenance requirements. Since they do not use oil, there is no need for regular oil testing or replacement, which can save time and money in the long run. Dry type transformers are also more compact and lightweight than oil-filled transformers, making them easier to install and transport.

However, oil-filled transformers have their own set of advantages. The oil used in these transformers helps to insulate the windings and protect them from moisture and contaminants, extending the lifespan of the transformer. Oil-filled transformers are also more efficient at dissipating heat, which can help to improve overall system performance.

When it comes to choosing between dry type and oil-filled transformers, it ultimately comes Down to the specific requirements of the application. For indoor applications where space is limited and fire safety is not a major concern, dry type transformers may be the best choice. On the other hand, for outdoor applications or in areas where fire safety is a priority, oil-filled transformers may be the better option.

model Rated power （KVA） Voltage combination（KV） No-load losses（W） Load losses（W） No-load current （%） Short-circuit voltage （%）
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

In China, there are many enterprises that specialize in the manufacturing of transformers, both dry type and oil-filled. These companies are known for their high-quality products and innovative designs, making them a popular choice for customers around the world. Many of these Chinese transformer manufacturers also offer OEM services, allowing customers to customize their transformers to meet their specific requirements.

alt-4413
To learn more about the different types of transformers available in the market, many Chinese transformer manufacturers offer informative videos on their websites. These videos provide valuable insights into the design, construction, and operation of transformers, helping customers make informed decisions when choosing a transformer for their application.

Type Rating power （KVA） Voltage combination（KV） No-load losses（W） Load losses（W） No-load current （%） Short-circuit voltage （%）
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 conclusion, both dry type and oil-filled transformers have their own set of advantages and disadvantages. The choice between the two types ultimately depends on the specific requirements of the application. Chinese transformer manufacturers are known for their high-quality products and innovative designs, making them a popular choice for customers around the world. By watching informative videos and learning more about the different types of transformers available, customers can make informed decisions when choosing a transformer for their application.

Avatar