Advantages of Dry Type Transformers in Medium Voltage Applications

Transformers are essential components in electrical systems, as they help to step up or step Down voltage Levels to ensure efficient power distribution. When it comes to medium voltage applications, there are two main types of transformers that are commonly used: dry type transformers and liquid immersed transformers. In this article, we will explore the advantages of dry type transformers in medium voltage applications.

Type	Rated capacity （KVA）	Voltage combination（KV）	Off-load losses（W）	Load losses（W）	Off-load Current (%)	Short-circuit impedance (%)
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

Dry type transformers, as the name suggests, do not use any liquid for cooling or insulation. Instead, they rely on air or gas to dissipate heat and provide insulation. This makes them a popular choice for indoor installations, as they do not pose the risk of oil leaks or spills. In addition, dry type transformers are more environmentally friendly, as they do not contain any hazardous liquids that could potentially harm the Environment in case of a leak.

One of the key advantages of dry type transformers is their low maintenance requirements. Since they do not use liquid for cooling, there is no need for regular oil testing or replacement. This can result in cost savings over the lifetime of the transformer, as maintenance costs are significantly reduced. In addition, dry type transformers are more resistant to environmental factors such as moisture and dust, which can help to prolong their lifespan.

Another advantage of dry type transformers is their compact size and lightweight design. This makes them easier to transport and install, especially in locations where space is limited. In addition, dry type transformers are often more aesthetically pleasing, as they do not require the use of large oil containment systems or cooling fans. This can be particularly important in urban areas or commercial buildings where appearance is a key consideration.

In terms of efficiency, dry type transformers are comparable to liquid immersed transformers. They are able to provide the same level of voltage regulation and power quality, making them a reliable choice for medium voltage applications. In addition, dry type transformers are able to operate at higher temperatures without the risk of overheating, which can help to improve overall system efficiency.

Resin transfo 10 series	Rated power （KVA）	Voltage combination（KV）	Off-load losses（W）	Load losses（W）	Off-load current （%）	Short-circuit impedance （%）
SC10-30	30	6,6.3,6.6,10,11/0.4	190	710	2.4	4.0
SC10-50	50	6,6.3,6.6,10,11/0.4	270	1000	2.4	4.0
SC10-80	80	6,6.3,6.6,10,11/0.4	370	1380	1.8	4.0
SC10-100	100	6,6.3,6.6,10,11/0.4	400	1570	1.8	4.0
SC10-125	125	6,6.3,6.6,10,11/0.4	470	1850	1.6	4.0
SCB10-160	160	6,6.3,6.6,10,11/0.4	550	2130	1.6	4.0
SCB10-200	200	6,6.3,6.6,10,11/0.4	630	2530	1.4	4.0
SCB10-250	250	6,6.3,6.6,10,11/0.4	720	2760	1.4	4.0
SCB10-315	315	6,6.3,6.6,10,11/0.4	880	3470	1.2	4.0
SCB10-400	400	6,6.3,6.6,10,11/0.4	980	3990	1.2	4.0
SCB10-500	500	6,6.3,6.6,10,11/0.4	1160	4880	1.2	4.0
SCB10-630	630	6,6.3,6.6,10,11/0.4	1350	5880	1.0	4.0
SCB10-630	630	6,6.3,6.6,10,11/0.4	1300	5960	1.0	6.0
SCB10-800	800	6,6.3,6.6,10,11/0.4	1520	6960	1.0	6.0
SCB10-1000	1000	6,6.3,6.6,10,11/0.4	1770	8130	1.0	6.0
SCB10-1250	1250	6,6.3,6.6,10,11/0.4	2090	9690	1.0	6.0
SCB10-1600	1600	6,6.3,6.6,10,11/0.4	2450	11730	1.0	6.0
SCB10-2000	2000	6,6.3,6.6,10,11/0.4	3050	14450	0.8	6.0
SCB10-2500	2500	6,6.3,6.6,10,11/0.4	3600	17170	0.8	6.0

When it comes to Safety, dry type transformers have several advantages over liquid immersed transformers. Since they do not use oil for cooling, there is no risk of fire or explosion in case of a fault. This can help to improve overall system safety and reduce the risk of downtime due to equipment failure. In addition, dry type transformers are often more resistant to short circuits and overloads, which can help to protect the electrical system from damage.

In conclusion, dry type transformers offer several advantages in medium voltage applications. From their low maintenance requirements and compact design to their efficiency and safety features, dry type transformers are a reliable and cost-effective choice for a wide range of applications. If you are considering a transformer for your medium voltage system, be sure to explore the benefits of dry type transformers and consider working with a reputable manufacturer in China who is ISO 9001 and 14001 certified.

How to Choose a Reliable China Manufacturer for Liquid Immersed Transformers

When it comes to choosing a reliable China manufacturer for liquid immersed transformers, there are several factors to consider. One of the most important considerations is the type of transformer you need – whether it be a dry type or liquid immersed transformer. Both types have their own advantages and disadvantages, so it is crucial to understand the differences between them before making a decision.

Dry type transformers are typically used in indoor applications where fire safety is a concern. They do not require any Cooling Oil, making them a safer option for enclosed spaces. However, they are generally more expensive than liquid immersed transformers and may not be suitable for high voltage applications.

On the other hand, liquid immersed transformers are more commonly used in outdoor applications where space is not a concern. They are filled with cooling oil, which helps to dissipate heat more effectively than air, making them suitable for high voltage applications. However, they require regular maintenance to ensure the oil is clean and free of contaminants.

When choosing a China manufacturer for liquid immersed transformers, it is important to look for a company that is ISO 9001 and 14001 certified. This certification ensures that the manufacturer meets international standards for quality management and environmental management, respectively. By choosing a certified manufacturer, you can be confident that the transformers they produce are of high quality and environmentally friendly.

Another important factor to consider when choosing a China manufacturer for liquid immersed transformers is the manufacturer’s reputation. Look for reviews and testimonials from previous customers to get an idea of the company’s track record. A reputable manufacturer will have a history of producing reliable and durable transformers that meet industry standards.

In addition to certifications and reputation, it is also important to consider the manufacturer’s production capabilities. Look for a manufacturer that has the capacity to produce transformers in the quantity and specifications you require. This will ensure that you receive your transformers in a timely manner and that they meet your specific needs.

One way to learn more about a China manufacturer’s production capabilities is to watch videos of their manufacturing process. Many manufacturers have videos on their websites that showcase their facilities and equipment. By watching these videos, you can get a better understanding of the manufacturer’s capabilities and quality control processes.

In conclusion, when choosing a reliable China manufacturer for liquid immersed transformers, it is important to consider the type of transformer you need, the manufacturer’s certifications and reputation, and their production capabilities. By taking these factors into account, you can ensure that you choose a manufacturer that produces high-quality transformers that meet your specific requirements.