Comparing Dry Type and Oil Immersed Transformers

Transformers are essential components in electrical systems, as they help to regulate voltage Levels and ensure the efficient transmission of electricity. When it comes to choosing a transformer for a specific application, one of the key decisions to make is whether to opt for a dry type or oil immersed transformer. Both types have their own set of advantages and disadvantages, and understanding the differences between them can help you make an informed decision.

Dry type transformers, as the name suggests, do not use oil as a cooling medium. Instead, they rely on air to dissipate heat generated during operation. 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 known for their low maintenance requirements and environmental friendliness, as they do not pose the risk of oil leaks or spills.

On the other hand, oil immersed transformers use oil as a cooling medium, which allows them to handle higher power levels and provide better insulation. These transformers are typically used in outdoor applications or in environments where the risk of fire is a concern. While oil immersed transformers may require more maintenance compared to dry type transformers, they are known for their reliability and long service life.

Type Rating\\u00a0power\\u00a0\\uff08KVA\\uff09 Voltage\\u00a0combination\\uff08KV\\uff09 No-load\\u00a0losses\\uff08W\\uff09 Load\\u00a0losses\\uff08W\\uff09 No-load\\u00a0current\\u00a0(%) Short-circuit\\u00a0voltage\\u00a0(%)
S11-630 630 33,35/6.3,6.6,10.5,11 830 7870 1.10 6.5
S11-800 800 33,35/6.3,6.6,10.5,11 980 9410 1.00 6.5
S11-1000 1000 33,35/6.3,6.6,10.5,11 1150 11540 1.00 6.5
S11-1250 1250 33,35/6.3,6.6,10.5,11 1410 13940 0.90 6.5
S11-1600 1600 33,35/6.3,6.6,10.5,11 1700 16670 0.80 6.5
S11-2000 2000 33,35/6.3,6.6,10.5,11 2180 18380 0.70 6.5
S11-2500 2500 33,35/6.3,6.6,10.5,11 2560 19670 0.60 6.5
S11-3150 3150 33,35/6.3,6.6,10.5,11 3040 23090 0.56 7.0
S11-4000 4000 33,35/6.3,6.6,10.5,11 3620 27360 0.56 7.0
S11-5000 5000 33,35/6.3,6.6,10.5,11 4320 31380 0.48 7.0
S11-6300 6300 33,35/6.3,6.6,10.5,11 5250 35060 0.48 7.5
S11-8000 8000 33,35/6.3,6.6,10.5,11 7200 38500 0.42 7.5
S11-10000 10000 33,35/6.3,6.6,10.5,11 8700 45300 0.42 7.5
S11-12500 12500 33,35/6.3,6.6,10.5,11 10080 53900 0.40 8.0
S11-16000 16000 33,35/6.3,6.6,10.5,11 12160 65800 0.40 8.0
S11-20000 20000 33,35/6.3,6.6,10.5,11 14400 79500 0.40 8.0
S11-25000 25000 33,35/6.3,6.6,10.5,11 17020 94100 0.32 8.0
S11-31500 31500 33,35/6.3,6.6,10.5,11 20220 112900 0.32 8.0

When it comes to efficiency, both dry type and oil immersed transformers have their own set of advantages. Dry type transformers are known for their low losses, which can help reduce energy consumption and operating costs. On the other hand, oil immersed transformers are known for their high efficiency and ability to handle higher power levels.

In terms of cost, dry type transformers are generally more expensive upfront compared to oil immersed transformers. However, the lower maintenance requirements and longer service life of dry type transformers can help offset the initial investment over time. Oil immersed transformers may have lower upfront costs, but the ongoing maintenance and oil replacement costs can add up over the lifespan of the transformer.

When choosing between a dry type and oil immersed transformer, it is important to consider the specific requirements of your application. Factors such as the operating Environment, power levels, maintenance requirements, and budget should all be taken into account. Consulting with a reputable transformer supplier can help you determine the best option for your needs.

Type Rating\\u00a0power\\u00a0\\uff08KVA\\uff09 Voltage\\u00a0combination\\uff08KV\\uff09 Off-load\\u00a0losses\\uff08W\\uff09 Load\\u00a0losses\\uff08W\\uff09 Off-load\\u00a0current\\u00a0(%) Short-circuit\\u00a0voltage\\u00a0(%)
S11-630 630 33,35/6.3,6.6,10.5,11 830 7870 1.10 6.5
S11-800 800 33,35/6.3,6.6,10.5,11 980 9410 1.00 6.5
S11-1000 1000 33,35/6.3,6.6,10.5,11 1150 11540 1.00 6.5
S11-1250 1250 33,35/6.3,6.6,10.5,11 1410 13940 0.90 6.5
S11-1600 1600 33,35/6.3,6.6,10.5,11 1700 16670 0.80 6.5
S11-2000 2000 33,35/6.3,6.6,10.5,11 2180 18380 0.70 6.5
S11-2500 2500 33,35/6.3,6.6,10.5,11 2560 19670 0.60 6.5
S11-3150 3150 33,35/6.3,6.6,10.5,11 3040 23090 0.56 7.0
S11-4000 4000 33,35/6.3,6.6,10.5,11 3620 27360 0.56 7.0
S11-5000 5000 33,35/6.3,6.6,10.5,11 4320 31380 0.48 7.0
S11-6300 6300 33,35/6.3,6.6,10.5,11 5250 35060 0.48 7.5
S11-8000 8000 33,35/6.3,6.6,10.5,11 7200 38500 0.42 7.5
S11-10000 10000 33,35/6.3,6.6,10.5,11 8700 45300 0.42 7.5
S11-12500 12500 33,35/6.3,6.6,10.5,11 10080 53900 0.40 8.0
S11-16000 16000 33,35/6.3,6.6,10.5,11 12160 65800 0.40 8.0
S11-20000 20000 33,35/6.3,6.6,10.5,11 14400 79500 0.40 8.0
S11-25000 25000 33,35/6.3,6.6,10.5,11 17020 94100 0.32 8.0
S11-31500 31500 33,35/6.3,6.6,10.5,11 20220 112900 0.32 8.0

In China, there are many factories and suppliers that specialize in manufacturing both dry type and oil immersed transformers. These companies often offer a wide range of transformer products to meet the diverse needs of their customers. Many Chinese transformer manufacturers also provide technical support and after-sales service to ensure the proper installation and operation of their products.

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If you are considering purchasing a transformer from a Chinese factory or supplier, it is important to do your research and choose a reputable company with a proven track record of quality and reliability. Reading customer reviews, watching videos of the transformers in operation, and requesting product specifications can help you make an informed decision.

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In conclusion, both dry type and oil immersed transformers have their own set of advantages and disadvantages. Understanding the differences between these two types of transformers can help you choose the best option for your specific application. Whether you opt for a dry type or oil immersed transformer, working with a reputable supplier is key to ensuring the quality and reliability of your transformer.