Exploring the Differences Between 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 transformers, there are two main types: dry type and oil immersed transformers. Each type has its own set of advantages and disadvantages, making it important for users to understand the differences between the two.

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 pose a Safety risk. Dry type transformers are also known for their low maintenance requirements and environmental friendliness, as they do not require the use of oil.

model 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

On the other hand, oil immersed transformers use oil as a cooling medium to dissipate heat. This allows them to handle higher power levels and provide better insulation compared to dry type transformers. Oil immersed transformers are commonly used in outdoor applications where the risk of fire is lower, as the oil helps to suppress any potential fires that may occur.

Type Rating\\u00a0capacity\\u00a0\\uff08KVA\\uff09 Voltage\\u00a0combination\\uff08KV\\uff09 No-load\\u00a0losses\\uff08W\\uff09 Load\\u00a0losses\\uff08W\\uff09 No-load\\u00a0Current\\u00a0(%) Short-circuit\\u00a0voltage\\u00a0(%)
SH15-M-30 30 6,6.3,10,10.5,11/0.4 33 630 1.50 4.0
SH15-M-50 50 6,6.3,10,10.5,11/0.4 43 910 1.20 4.0
SH15-M-63 63 6,6.3,10,10.5,11/0.4 50 1090 1.10 4.0
SH15-M-80 80 6,6.3,10,10.5,11/0.4 60 1310 1.00 4.0
SH15-M-100 100 6,6.3,10,10.5,11/0.4 75 1580 0.90 4.0
SH15-M-125 125 6,6.3,10,10.5,11/0.4 85 1890 0.80 4.0
SH15-M-160 160 6,6.3,10,10.5,11/0.4 100 2310 0.60 4.0
SH15-M-200 200 6,6.3,10,10.5,11/0.4 120 2730 0.60 4.0
SH15-M-250 250 6,6.3,10,10.5,11/0.4 140 3200 0.60 4.0
SH15-M-315 315 6,6.3,10,10.5,11/0.4 170 3830 0.50 4.0
SH15-M-400 400 6,6.3,10,10.5,11/0.4 200 4520 0.50 4.0
SH15-M-500 500 6,6.3,10,10.5,11/0.4 240 5140 0.50 4.0
SH15-M-630 630 6,6.3,10,10.5,11/0.4 320 6200 0.30 4.5
SH15-M-800 800 6,6.3,10,10.5,11/0.4 380 7500 0.30 4.5
SH15-M-1000 1000 6,6.3,10,10.5,11/0.4 450 10300 0.30 4.5
SH15-M-1250 1250 6,6.3,10,10.5,11/0.4 530 12000 0.20 4.5
SH15-M-1600 1600 6,6.3,10,10.5,11/0.4 630 14500 0.20 4.5
SH15-M-2000 2000 6,6.3,10,10.5,11/0.4 750 18300 0.20 5.0
SH15-M-2500 2500 6,6.3,10,10.5,11/0.4 900 21200 0.20 5.0

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One of the key differences between dry type and oil immersed transformers is their cost. Dry type transformers are generally more expensive to purchase upfront, but they offer lower maintenance costs over their lifespan. Oil immersed transformers, on the other hand, have lower initial costs but may require more frequent maintenance and oil changes, which can add up over time.

In terms of performance, both types of transformers have their own strengths. Dry type transformers are known for their high efficiency and reliability, making them a popular choice for critical applications where downtime is not an option. Oil immersed transformers, on the other hand, are better suited for high power applications where the ability to handle large loads is essential.

When it comes to choosing between dry type and oil immersed transformers, it is important to consider the specific requirements of the application. Factors such as cost, maintenance, efficiency, and power handling capabilities should all be taken into account when making a decision.

In China, there are many manufacturers and exporters of both dry type and oil immersed transformers. These companies offer a wide range of products to meet the needs of different customers, from medium voltage transformers to high voltage transformers. Many of these manufacturers also provide videos showcasing their products and manufacturing processes, allowing customers to get a better understanding of the quality and performance of the transformers they offer.

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In conclusion, the choice between dry type and oil immersed transformers ultimately comes Down to the specific requirements of the application. Both types have their own set of advantages and disadvantages, and it is important to carefully consider these factors before making a decision. With the wide range of options available from Chinese manufacturers, customers can find a transformer that offers high cost performance and meets their specific needs.