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Demand For Dry Transformers Is Increasing
- May 26, 2018 -

Demand for dry transformers is increasing


In the development of our country current situation, the dry type transformer in the large and medium sized cities accounted for 15% of an average of about 20%, and in Beijing, Shanghai, guangzhou, shenzhen and other cities, accounted for about 50%, but as a result of rural power distribution network in our country the application of dry type transformer is relatively small, therefore, on the whole, dry type transformer of transformer used in 10-15%.


Although China's market share is low, due to its excellent application conditions and performance, the proportion of dry transformers in total transformer output will increase to a certain extent. It is expected that China's market share of dry change will reach about 50% by 2020, which is similar to that of developed countries. Therefore, China's dry change market still has a long way to go.

There are four types of dry transformation: epoxy resin casting, filler casting, wrapping and impregnation. At present, widely used in Europe and the United States open ventilated dry type transformer class H is based on immersion type learned the winding and the structure characteristics and USES the Nomex paper developed a new type of class H after dry, because the price is high, in our country has not been popularized.


At present, the dry distribution transformer with the largest short-circuit test capacity in China is 2500kVA and 10/0.4kV. The dry power transformers with the largest capacity through short circuit test are 16000kVA and 35/10kv.