Dry-type transformer is a kind of transformer using air as cooling medium, mainly used for conversion and transmission of electric energy. Unlike oil-immersed transformers, the windings and core of a dry-type transformer are not immersed in oil, and are usually covered with resin or insulating material, which provides better insulation.
Oil-immersed transformer is a transformer that uses transformer oil as a cooling medium, utilizing the principle of electromagnetic induction to convert high-voltage current to low-voltage current, or vice versa. Its basic components include primary side (high voltage side), secondary side (low voltage side), core and insulating oil.
Box-type substation is compact and occupies less land area compared to traditional substations, making it suitable for cities and areas with limited space. Convenient installation: As it is a factory prefabricated product, the box-type substation can be installed quickly, shortening the construction period and reducing the difficulty of construction.
Photovoltaic transformers are key equipment in solar power generation systems. They are mainly used to boost the low-voltage AC power output by photovoltaic inverters to the voltage level required by the grid (such as 10kV, 35kV, etc.), ensuring that the power is efficiently integrated into the grid or used locally.
Qingdao Junling Transformer Co., Ltd. is a designated transformer manufacturer in China with more than 15 years of production experience and an annual output value of over 150 million yuan. The company has excellent manufacturing equipment, a strong technical force, advanced production technology, and complete testing methods.
Covering an area of more than 10,000 square meters
More than 200 employees
More than 80 R&D and technical staff
Annual output value of 150 million to 200 million yuan
In an electrified world, power transformers are critical in keeping industries running, cities powered, and daily life uninterrupted. These essential devices efficiently convert high-voltage electricity from transmission lines into lower voltages suitable for industrial, commercial, and residential use, ensuring safe, stable, and reliable power distribution.
In today’s fast-evolving energy landscape, reliable and efficient transformers are the backbone of power distribution. Qingdao Junling Transformer Co., Ltd. stands at the forefront of innovation, delivering top-tier Dry Type Transformers and Oil Immersed Transformers designed for superior performance, safety, and sustainability.
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.
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