Differences Between Dry Type and Liquid Immersed Transformers

Transformers are essential components in electrical systems, as they help to regulate voltage Levels and ensure the efficient transmission of electricity. There are two main types of transformers commonly used in the industry: dry type transformers and liquid immersed transformers. Each type has its own set of advantages and disadvantages, making them suitable for different applications.

Dry type transformers, as the name suggests, do not use any liquid for cooling or insulation. Instead, they rely on air to dissipate heat and provide insulation. This makes them ideal for indoor applications where the use of liquid-filled transformers may pose a Safety hazard. Dry type transformers are also more environmentally friendly, as they do not contain any oil or other hazardous substances.

On the other hand, liquid immersed transformers use oil or other insulating liquids to cool and insulate the transformer. These transformers are typically used in outdoor applications where the risk of fire is lower, as the oil provides better insulation and heat dissipation properties. Liquid immersed transformers are also more efficient than dry type transformers, as the oil helps to transfer heat away from the transformer more effectively.

One of the main differences between dry type and liquid immersed transformers is their construction. Dry type transformers are typically smaller and lighter than liquid immersed transformers, making them easier to transport and install. However, liquid immersed transformers are more durable and can withstand higher temperatures and overloads, making them suitable for heavy-duty applications.

Type Rated\\u00a0capacity\\u00a0\\uff08KVA\\uff09 Voltage\\u00a0combination\\uff08KV\\uff09 No-load\\u00a0losses\\uff08W\\uff09 Load\\u00a0losses\\uff08W\\uff09 No-load\\u00a0current\\u00a0\\uff08%\\uff09 Short-circuit\\u00a0voltage\\u00a0\\uff08%\\uff09
SCH15-30 30 6,6.3,6.6,10,11/0.4 70 710 1.6 4.0
SCH15-50 50 6,6.3,6.6,10,11/0.4 90 1000 1.4 4.0
SCH15-80 80 6,6.3,6.6,10,11/0.4 120 1380 1.3 4.0
SCH15-100 100 6,6.3,6.6,10,11/0.4 130 1570 1.2 4.0
SCH15-125 125 6,6.3,6.6,10,11/0.4 150 1850 1.1 4.0
SC(B)H15-160 160 6,6.3,6.6,10,11/0.4 170 2130 1.1 4.0
SC(B)H15-200 200 6,6.3,6.6,10,11/0.4 200 2530 1.0 4.0
SC(B)H15-250 250 6,6.3,6.6,10,11/0.4 230 2760 1.0 4.0
SC(B)H15-315 315 6,6.3,6.6,10,11/0.4 280 3470 0.9 4.0
SC(B)H15-400 400 6,6.3,6.6,10,11/0.4 310 3990 0.8 4.0
SC(B)H15-500 500 6,6.3,6.6,10,11/0.4 360 4880 0.8 4.0
SC(B)H15-630 630 6,6.3,6.6,10,11/0.4 420 5880 0.7 4.0
SC(B)H15-630 630 6,6.3,6.6,10,11/0.4 410 5960 0.7 6.0
SC(B)H15-800 800 6,6.3,6.6,10,11/0.4 480 6960 0.7 6.0
SC(B)H15-1000 1000 6,6.3,6.6,10,11/0.4 550 8130 0.6 6.0
SC(B)H15-1250 1250 6,6.3,6.6,10,11/0.4 650 9690 0.6 6.0
SC(B)H15-1600 1600 6,6.3,6.6,10,11/0.4 780 11730 0.6 6.0
SC(B)H15-2000 2000 6,6.3,6.6,10,11/0.4 1000 14450 0.5 6.0
SC(B)H15-2500 2500 6,6.3,6.6,10,11/0.4 1200 17170 0.5 6.0

https://www.youtube.com/watch?v=5UmYwHTWWpEAnother key difference between the two types of transformers is their maintenance requirements. Dry type transformers require less maintenance than liquid immersed transformers, as they do not have any oil that needs to be monitored and replaced regularly. This makes dry type transformers more cost-effective in the long run, as they require fewer maintenance checks and repairs.

In terms of cost, dry type transformers are generally more expensive than liquid immersed transformers. This is due to the higher cost of materials used in the construction of dry type transformers, as well as the additional insulation required to protect the transformer from environmental factors. However, the lower maintenance costs of dry type transformers can offset this initial investment over time.

When choosing between dry type and liquid immersed transformers, it is important to consider the specific requirements of the application. For indoor applications where safety is a concern, dry type transformers may be the best option. On the other hand, for outdoor applications where durability and efficiency are key factors, liquid immersed transformers may be more suitable.

In conclusion, both dry type and liquid immersed transformers have their own set of advantages and disadvantages. The choice between the two types of transformers will depend on the specific requirements of the application, as well as budget constraints. By understanding the differences between dry type and liquid immersed transformers, you can make an informed decision when selecting a transformer for your electrical system.

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