Comparing Dry Type and Oil Immersed Transformers

Transformers are essential components in electrical systems, used to step up or step Down voltage Levels for efficient power distribution. When it comes to transformers, there are two main types: dry type and oil immersed transformers. Each type has its own advantages and disadvantages, making it important to understand the differences between them before making a decision on which type to use.

Dry type transformers, as the name suggests, do not use any liquid for cooling. Instead, they rely on air for heat dissipation. This makes them ideal for indoor applications where the use of oil 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. Additionally, they require less maintenance compared to oil immersed transformers.

On the other hand, oil immersed transformers use oil as a cooling and insulating medium. The oil helps to dissipate heat more efficiently, allowing the transformer to operate at higher power levels. Oil immersed transformers are typically used in outdoor applications or in areas where fire Safety is a concern. However, they require regular maintenance to ensure the oil is clean and free of contaminants.

When comparing the two types of transformers, it is important to consider factors such as cost, efficiency, and maintenance requirements. Dry type transformers are generally more expensive upfront but have lower maintenance costs over time. Oil immersed transformers, on the other hand, have lower initial costs but require more frequent maintenance to ensure optimal performance.

model	Rated power （KVA）	Voltage combination（KV）	Off-load losses（W）	Load losses（W）	Off-load current （%）	Short-circuit voltage （%）
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

In China, there are many companies that manufacture both dry type and oil immersed transformers. One such company is XYZ Transformers Co., Ltd., which specializes in the production of high-quality transformers for various applications. XYZ Transformers Co., Ltd. offers a wide range of transformers, including 3 phase transformers, which are commonly used in industrial and commercial settings.

One of the key advantages of purchasing transformers from XYZ Transformers Co., Ltd. is their fast delivery times. The company has a streamlined production process that allows them to quickly fulfill orders and deliver transformers to customers in a timely manner. This is especially important for businesses that rely on transformers for their operations and cannot afford to wait weeks or months for delivery.

In addition to fast delivery times, XYZ Transformers Co., Ltd. also provides comprehensive technical support to help customers with installation and maintenance of their transformers. The company offers instructional videos and guides to assist customers in properly setting up and maintaining their transformers for optimal performance.

model	Rated capacity （KVA）	Voltage combination（KV）	No-load losses（W）	Load losses（W）	No-load current （%）	Short-circuit impedance （%）
SC13-30	30	6,6.3,6.6,10,11/0.4	150	710	2.3	4.0
SC13-50	50	6,6.3,6.6,10,11/0.4	215	1000	2.2	4.0
SC13-80	80	6,6.3,6.6,10,11/0.4	295	1380	1.7	4.0
SC13-100	100	6,6.3,6.6,10,11/0.4	320	1570	1.7	4.0
SC13-125	125	6,6.3,6.6,10,11/0.4	375	1850	1.5	4.0
SCB13-160	160	6,6.3,6.6,10,11/0.4	430	2130	1.5	4.0
SCB13-200	200	6,6.3,6.6,10,11/0.4	495	2530	1.3	4.0
SCB13-250	250	6,6.3,6.6,10,11/0.4	575	2760	1.3	4.0
SCB13-315	315	6,6.3,6.6,10,11/0.4	705	3470	1.1	4.0
SCB13-400	400	6,6.3,6.6,10,11/0.4	785	3990	1.1	4.0
SCB13-500	500	6,6.3,6.6,10,11/0.4	930	4880	1.1	4.0
SCB13-630	630	6,6.3,6.6,10,11/0.4	1070	5880	0.9	4.0
SCB13-630	630	6,6.3,6.6,10,11/0.4	1040	5960	0.9	6.0
SCB13-800	800	6,6.3,6.6,10,11/0.4	1210	6960	0.9	6.0
SCB13-1000	1000	6,6.3,6.6,10,11/0.4	1410	8130	0.9	6.0
SCB13-1250	1250	6,6.3,6.6,10,11/0.4	1670	9690	0.9	6.0
SCB13-1600	1600	6,6.3,6.6,10,11/0.4	1960	11700	0.9	6.0
SCB13-2000	2000	6,6.3,6.6,10,11/0.4	2440	14400	0.7	6.0
SCB13-2500	2500	6,6.3,6.6,10,11/0.4	2880	17100	0.7	6.0

In conclusion, when comparing dry type and oil immersed transformers, it is important to consider factors such as cost, efficiency, and maintenance requirements. Both types of transformers have their own advantages and disadvantages, making it essential to choose the type that best suits your specific needs. Companies like XYZ Transformers Co., Ltd. in China offer a wide range of transformers, including 3 phase transformers, with fast delivery times and comprehensive technical support to ensure customer satisfaction. Whether you choose a dry type or oil immersed transformer, it is important to work with a reputable manufacturer to ensure the quality and reliability of your transformer.