Typical Construction Technology and Method of UHV Main Transformer Chen Kerui, Han Yang, Wang Lei, Pei Ying, He Dengsen, Zhang Yan, Gao Nannan, Li Hongbo, Li Pei and Guo Liangfeng E3S Web Conf., 38 (2018) 04003 Published online: 04 June 2018 DOI: 10.1051/e3sconf/20183804003