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How to select, replace and find the products you need easily? 1.33kV class and below Three Phase Cast Resin Dry Type transformer 2.Rated Voltage: up to 40.5kV 3.Rated Capacity: 50kVA up to 26.5MVA 4.33kV class and below Amorphous Alloy Dry Type Transformer 5.33kV class and below Substation Transformer 6.33kV class and below Oil-immersed Transformer 7.220kV class and below Oil-immersed Transformer

Want to buy products from Dongrun Electric? With the continuous promotion of new energy applications, Dongrun Electric keeps up with the pace of the times, continuously intensifies R&D and innovation, develops transformer products that meet various market needs, and improves its strength in an all-round way to win the victory in market competition. By operating with industrial partners and contractors, Dongrun Electric has an established international network in more than 40 counties.Dongrun Electric is devoted to provide safe, high efficient and intelligent power transformation and distribution solution, focusing on R&D, manufacturing, sales and service.

Want support in the maintenance or troubleshooting of Dongrun Electrical products? Pre- operation inspection and critical criteria： No necessity to take out the core and coil from the tank for inspection；Complete the following tests in accordance with GB50150-2016 standard；Compared with the factory value, the DC resistance change of the coil and sleeve shall not exceed 2%；Check all changes of the tapping points and the values shall not be significantly different from the factory value；The tab of the tie-in module of the transformer shall match the nameplate；The insulation resistance shall not be less than the values listed in Table

Do you need to repair existing equipment? Regular check and maintenance are necessary in order to ensure the normal operation of the transformer.In generally, transformers in dry and clean places need a check once a year or a little longer period; On other occasions, for example, when air may be contaminated by dust or chemical fumes enters, a check is needed every three to six months.During inspection, if excessive dust accumulation is found, it must be removed to ensure air circulation and prevent creepage. To ensure air circulation and prevent creepage. Pay attention to clean the insulator of the transformer and the boss of the lower pad, and use dry compressed air (0.2~0.5MPa) to blow off the dust in the ventilation duct.

Looking for other support? Dongrun Transformer Co., Ltd. adheres to the working principle of integrity, standardization and high efficiency, wins the market with technology, and gains reputation with creative services, and wholeheartedly provides high-quality, efficient and fast services to our customers. The company has a R&D and production team composed of highly educated and high-quality talents, as well as a trade team with rich experience in cross-border cooperation. As the first domestic team engaged in the transformer industry, it has witnessed the rapid development of this industry, accumulated rich experience in R&D, production and trade, and formed a scientific management system.

Driving quality ingredients for leading brands​.