Development and test in grid of 630 kVA three-phase high temperature superconducting transformer Yinshun WANG 1 ;Xiang ZHAO 2 ;Junjie HAN 2 ;Huidong LI 1 ;Yin GUAN 1 ;Qing BAO 1 ;Xi XU 1 ;Shaotao DAI 1 ;Naihao SONG 1 ;Fengyuan ZHANG 1 ;Liangzhen LIN 1 ;Liye XIAO 1 ; 1. Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100080, China ; 2. Technical Center of Tebian Electric Apparatus Stock Co., Ltd, Changji 831100, China ; Fig.4 Overview of single phase transformer winding Frontiers of Electrical and Electronic Engineering in China,2009,4(1),104-113. Doi:10.1007/s11460-009-0010-5