Dr. Zhibin Qiu was born in Jiangxi Province, China in 1991. He received the B.S. degree in electrical engineering and automation, and the Ph.D. degree in high voltage and insulation technology from the School of Electrical Engineering, Wuhan University, Wuhan, China in 2011 and 2016, respectively, where he was engaged in post-doctoral research from 2016 to 2018. He is currently a Distinguished Professor with the Department of Energy and Electrical Engineering, Nanchang University, Nanchang, China. His research interests include gas discharge, numerical analysis of electromagnetic field and its engineering applications, and the external insulation of power transmission and transformation equipment. Prof. Jiangjun Ruan was born in Zhejiang Province, China in 1968. He received the B.S. and Ph. D. degrees in electric machine engineering from Huazhong University of Science & Technology, Wuhan, China in 1990 and 1995, respectively, and finished his post-doctoral research from WuhanUniversity of Hydraulic & Electric Engineering, Wuhan, China in 1998. He is currently a Professor with the School of Electrical Engineering and Automation, Wuhan University, Wuhan, China. His research interests include numerical analysis of electromagnetic field and its engineering applications, high voltage and insulation technology. Dr. Shengwen Shu was born in Jiangxi Province, China in 1987. He received the B.S. degree in electrical engineering and automation, and the Ph.D. degree in high voltage and insulation technology from the School of Electrical Engineering, Wuhan University, Wuhan, China in 2009, and 2014, respectively. From 2014 to 2018, he is a senior engineer with the Electric Power Research Institute of State Grid Fujian Electric Power Co., Ltd, Fuzhou, China. Currently, he is with the College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, China. His research interests include gas discharge, high voltage apparatus, and disaster preventionand reduction of power grid.