1. Maintenance and Test Company,Power Generation Company of China Southern Power Grid,Guanzhou,China
2. Harbin University of Science and Technology,China State Key Laboratory Breeding Base of Dielectrics Engineering,Harbin,China
3. Harbin Electric Machinery Company Limited,Harbin Institute of Large Electric Machinery, State Key Laboratory of Hydropower Equipment, Hadong National Engineering Research Center-Hydropower Equipment Company Limited, National Engineering Research Center-Hydropower Equipment,Harbin,China
4. Harbin Electric Machinery Company Limited,Harbin Institute of Large Electric Machinery,Guanzhou,China