高电压技术2012，Vol.38Issue(12)：3331-3337,7.
特高压GIS变电站母线不装避雷器可行性研究
Feasibility Study of UHV GIS Substation Busbar Without MOAs
摘要
Abstract
Reducing the construction cost of ultra high voltage (UHV) project to improve its economy has become one of the most important problems in the development of UHV technology. We calculated and analyzed the incoming lightning surges of 4 substations of the Huainan-Shanghai UHV transmission project to study the feasibility and security of canceling the metal oxide arresters MOAs at busbar. The results show that,in the absence of MOAs , the maximum lightning incoming overvoltage at all devices is 1 995 kV under normal operation mode which is within the permitted range. However, the maximum lightning incoming overvoltage is 2 480 kV under special operation mode which exceeds the permitted range. Considering that the special operation mode, i. e. , the particular wiring configuration can be avoided by scheduling the sequence of grid-combine operations in advance, it can be concluded that the metal oxide attesters MOAs at busbar can be canceled in the 4 UHV gas insulated switchgear(GIS) substation. The cancellation is significantly economical by saving about 120 million RMB (15 million RMB per set) investments for the 4 substations of the Huainan-Shanghai transmission project in total.关键词
特高压（UHV）/GIS变电站/母线/避雷器/运行方式/雷电侵入波过电压Key words
ultra high voltage(UHV)/gas insulated switchgear(GIS)substation/busbar/metal oxide arrester (MOA)/operation mode/lighting incoming surge overvoltage分类
信息技术与安全科学引用本文复制引用
万磊,宋倩,徐晓娜,何慧雯,范冕,谷定燮..特高压GIS变电站母线不装避雷器可行性研究[J].高电压技术,2012,38(12):3331-3337,7.基金项目
基金资助项目：国家电网公司科技项目（SG1026）. （）
