SG (B) 10 series of non-encapsulated H-class dry-type power transformers adopt the special process technology of German (MORA) dry-type transformers to ensure that the products fully meet the requirements such as fire prevention, waterproof ,environmental protection. It is the ideal product for distribution systems and widely used in the subway, shipbuilding, mining, chemical, power companies and personnel-intensive buildings as well as other special requirements of the occasion for safety.