Our company uses high-quality materials and advanced technologies, producing SG series of single & three-phases dry transformer between 0.5KVA~800KVA. We have developed new transformers for import equipments according to the same kind of products of SIMENS company, our products are fit for VDE0550, IEC439, JB5555, GB5226 national and international standazitation. SG series of three-phase dry transformer are widely used in the situation of 50,60Hz, the input and output voltage within 500V. The requirements of input,output voltage, coupling group, tapping adjustment, winding capacity allocation, with or without shell are all up to customers.