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In the world of power transmission and distribution, reliability and efficiency are paramount. Oil-immersed transformers play a vital role in ensuring stable energy supply across industries, commercial centers, and residential areas. But what exactly is an oil-immersed transformer, and why is it indispensable for modern power distribution systems?

Qingdao Junling Transformer Co., Ltd. is a leading manufacturer specializing in the production of high-performance transformers. With years of expertise in the domestic market, we have built a strong reputation for quality and reliability. As we expand into the global market in 2024, we are excited to bring our advanced transformer solutions to customers worldwide.

The information presented here is only a summary of key points and is not comprehensive. The standards and requirements for maintenance and testing of medium voltage dry type transformers contained in NEC Article 450, Chapter 21.3 and IEEE Std. 57.12.91 should be followed.

The following information applies only to indoor installations of ELSCO dry type transformers, which are also covered by NEC Article 450.21-28. Here are some additional tips on preparing for an indoor dry type installation. Outdoor installations of dry type transformers are covered by NEC 450.41-48.

The most important factor in choosing between a dry type and a liquid-cooled transformer is the installation environment.

A large manufacturer had a dry-type transformer fail. Production was down and they had to send workers home. We had a new dry type in stock and they ordered it. We got good photos of the HV cable, the LV bus with braided shunts, and the base. We obtained all the critical dimensions, put everything on CAD and were able to modify our core and coil unit to create a plug-and-play retrofit. In less than a full day their unit was on the road to a seamless installation which got them back up and running. Our quick response time eliminated days of costly downtime.

There are a variety of industries that utilize dry-type transformers. Discrete Manufacturing · Machine shops · Sheet Metal Fabrication · Welding · Plastic and Rubber Molding · Machinery · Electroplating

The benefits of our dry type transformers originate from both the design and the materials used in their construction.

A dry type transformer is cooled by normal air ventilation instead of a liquid such as mineral oil or Envirotemp FR3. Most instrument transformers and low-voltage power chargers today are also dry types. Liquid cooling inside sealed tanks and metal enclosures became the standard for AC power distribution transformers due to the higher induction heat losses and exposure to all-weather conditions.

When it comes to providing stable and high-efficiency power solutions for heavy-duty applications, oil-immersed transformers stand at the forefront of the industry. At Qingdao Junling Transformer Co., Ltd., we are committed to delivering top-tier oil-immersed transformers that guarantee superior performance, long service life, and exceptional reliability.

In an era where energy efficiency and safety are paramount, Qingdao Junling Transformer Co., Ltd. is proud to offer our industry-leading Dry Type Transformers. Designed for superior performance, durability, and safety, our dry type transformers provide reliable electrical solutions for a wide range of applications.

In recent years, the entire power transformer industry almost no growth, and dry-type transformers is a downward trend. However, my company transformer sales revenue but a substantial increase of 11% year-on-year. Overall, the various business indicators for several consecutive years ranked first in Qingdao transformer industry.