Comparing 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 power distribution systems: dry type transformers and liquid immersed 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 any liquid for cooling or insulation. Instead, they rely on air to dissipate heat and provide insulation. This makes them a popular choice for indoor applications where the use of oil-filled transformers is not practical. Dry type transformers are also more environmentally friendly, as they do not pose the risk of oil leaks or spills.

One of the main advantages of dry type transformers is their Safety. Since they do not contain oil, there is no risk of fire or explosion in the event of a fault. This makes them ideal for use in buildings where fire safety is a concern. Dry type transformers are also easier to maintain, as there is no need to monitor oil levels or perform regular oil testing.

On the other hand, liquid immersed transformers use oil as a cooling and insulation medium. While this makes them more efficient at dissipating heat, it also poses a higher risk of fire in the event of a fault. Liquid immersed transformers are typically used in outdoor applications where the risk of fire is lower, such as pole-mounted transformers.

model	Rating\u00a0capacity\u00a0\uff08KVA\uff09	Voltage\u00a0combination\uff08KV\uff09	Off-load\u00a0losses\uff08W\uff09	Load\u00a0losses\uff08W\uff09	Off-load\u00a0current\u00a0\uff08%\uff09	Short-circuit\u00a0voltage\u00a0\uff08%\uff09
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

Despite the safety concerns associated with oil-filled transformers, they are still widely used in power distribution systems due to their high efficiency and reliability. Liquid immersed transformers are also more cost-effective than dry type transformers, making them a popular choice for large-scale power distribution projects.

When comparing dry type and liquid immersed transformers, it is important to consider the specific requirements of the application. While dry type transformers may be safer and more environmentally friendly, they may not be suitable for all applications. Liquid immersed transformers, on the other hand, offer higher efficiency and reliability, but come with a higher risk of fire.

In conclusion, both dry type and liquid immersed transformers have their own advantages and disadvantages. The choice between the two types of transformers will depend on the specific requirements of the application, as well as considerations such as safety, efficiency, and cost. It is important to consult with a qualified electrical engineer or transformer manufacturer to determine the best type of transformer for your needs.

In China, there are many reputable transformer exporters and manufacturers who offer a wide range of dry type and liquid immersed transformers. These companies are known for their high-quality products, competitive prices, and reliable customer service. If you are in need of a transformer for your power distribution system, consider reaching out to a trusted Chinese exporter or manufacturer for discounted prices and expert advice.

For more information on dry type and liquid immersed transformers, you can also check out online videos and tutorials that provide a detailed overview of the different types of transformers available in the market. By educating yourself on the various options, you can make an informed decision when selecting a transformer for your electrical system.