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 oil or other liquids 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.

alt-863
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 or in areas where space is not a constraint. Liquid immersed transformers are more efficient at dissipating heat, making them suitable for high-power applications.

One of the key 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. Liquid immersed transformers, on the other hand, are larger and heavier due to the need for a liquid-filled tank.

Another difference between the two types of transformers is their maintenance requirements. Dry type transformers require less maintenance compared to liquid immersed transformers, as there is no need to monitor the condition of the insulating liquid. However, dry type transformers may require more frequent cleaning to prevent dust buildup and ensure proper cooling.

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 prevent overheating. Liquid immersed transformers are more cost-effective for high-power applications, as they are more efficient at dissipating heat.

model Rated\\u00a0power\\u00a0\\uff08KVA\\uff09 Voltage\\u00a0combination\\uff08KV\\uff09 Off-load\\u00a0losses\\uff08W\\uff09 Load\\u00a0losses\\uff08W\\uff09 Off-load\\u00a0current\\u00a0\\uff08%\\uff09 Short-circuit\\u00a0impedance\\u00a0\\uff08%\\uff09
SZ11-2000 2000 33,35/6.3,6.6,10.5,11 2300 19240 0.80 6.5
SZ11-2500 2500 33,35/6.3,6.6,10.5,11 2720 20640 0.80 6.5
SZ11-3150 3150 33,35/6.3,6.6,10.5,11 3230 24710 0.72 7.0
SZ11-4000 4000 33,35/6.3,6.6,10.5,11 3870 29160 0.72 7.0
SZ11-5000 5000 33,35/6.3,6.6,10.5,11 4640 34200 0.68 7.0
SZ11-6300 6300 33,35/6.3,6.6,10.5,11 5630 36800 0.68 7.5
SZ11-8000 8000 33,35/6.3,6.6,10.5,11 7870 40600 0.60 7.5
SZ11-10000 10000 33,35/6.3,6.6,10.5,11 9280 48100 0.60 7.5
SZ11-12500 12500 33,35/6.3,6.6,10.5,11 10940 56900 0.56 8.0
SZ11-16000 16000 33,35/6.3,6.6,10.5,11 13170 70300 0.54 8.0
SZ11-20000 20000 33,35/6.3,6.6,10.5,11 15570 82800 0.54 8.0

When it comes to efficiency, both types of transformers have their own advantages. Dry type transformers are more energy-efficient, as they do not require the continuous operation of a Cooling System. Liquid immersed transformers, on the other hand, are more efficient at dissipating heat, making them suitable for high-power applications where heat dissipation is critical.

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, such as space constraints, cooling requirements, and maintenance considerations. It is important to consult with a qualified engineer or transformer manufacturer to determine the most suitable type of transformer for your needs.