GENEVA, Nov. 30 -- ELECTRIC POWER RESEARCH INSTITUTE OF GUANGXI POWER GRID CO., LTD (No. 6-2, Minzhu Road, Xingning DistrictNanning, Guangxi 530023), 广西电网有限责任公司电力科学研究院 (中国广西壮族自治区南宁市兴宁区民主路6-2号), ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID (3/F Of Building J3 And 3/F, 4/F, 5/F Of Building J1, No. 11 Kexiang Road, Science Park, Luogang District,Guangzhou, Guangdong 510663), 南方电网科学研究院有限责任...