1. Guangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, Electric Power Research Institute of Guangxi Power Grid Co., Ltd., Nanning, People’s Republic of China
2. Guangxi Power Grid Equipment Monitoring and Diagnosis Engineering Technology Research Center, Electric Power Research Institute of Guangxi Power Grid Co., Ltd., Nanning, People’s Republic of China
3. Guangxi Power Grid Co., Ltd., Nanning, People’s Republic of China