Dalian No.1 Instrument Transformer Co.,ltd was founded on 1972 which occupies floor area of 380,000㎡ and building area of 186,000㎡ with about 1800 employees.

The company implements group operation mode. The headquarters located in Pulandian District Dalian City. It is the manufacturing base for MV/HV Instrument Transformer, Rip tubular busbar system and Power transmission & distribution equipment. The subsidiaries in Shanghai City, Xiamen City, and Dalian City complete DYH a group company. A joint venture company was founded between DYH and Arteche Spain to produce and sale CT/PT ratings from110KV and above. DYH is the leading company in the field of Instrument Transformer industry, which engaged in instrument transformer R&D, manufacturing, marketing, sales since founded.

Our company is the certified provincial level enterprise technical center, member of national standardization committee which is the main party to compile and amend national standard and industrial standard. Technical performance and quality of products is in the leading position in the world. The products are installed and operated successfully in key projects such as Peking Olympic Games, World expo, HZM bridge, high speed train and etc.. DYH had been enrolled in global purchasing network by ABB, Siemens, Schneider electric, Eaton and other overseas giant players in the field of power transmission and distribution equipment supplying.

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Arteche DYH Electric Co.,Ltd（JV）