The first cold dielectric insulation (CD) high temperature superconducting (HTS) cable system of China, installed in Baoshan iron&steel Co., Ltd (Baosteel), begins its operation and supplies power for the second EAF on Dec 9th, 2013. The system is a three-phase system with rated capacity of 120 MVA (rated voltage 35 kV, rated current 2000 A). The cables' length is 50m for each phase. The cables were made up of 2 G HTS tapes which were provided by AMSC. An unmanned remote control power station has been built by employing high-intelligent control and communications technology. The project is funded by Science and Technology Commission of Shanghai Municipality (STCSM) with the leadership of Shanghai Electric Cable Research Institute (SECRI). Shanghai Sanyuan Cable Accessories Co., Ltd., BaoSteel Co., Ltd., and Shanghai Electric Power Design Institute Co., Ltd. (SEPD), are the main partners. Shanghai University, Shanghai Jiaotong University and Shanghai Cable Co., Ltd. are also involved in the projects.