高电压技术2011，Vol.37Issue(3)：651-657,7.
磁环抑制特高压GIS设备中特快速暂态过电压的模拟试验
Simulation Test on Suppressing VFTO in UHV GIS with Magnetic-rings
摘要
Abstract
An approach for suppressing VFTO in UHV GIS with magnetic-rings was presented , and a series of sim ulation tests were carried out. The test system was constructed with a 252 kV GIS, and travelling wave with high steepness was generated by a SF6 gas gap. The tests under 50 kV, 75 kV and 100 kV were implemented to verify the suppression effects of R2KB ferrite and FJ37 amorphous magnetic-rings with different length to the amplitude and steepness of the voltage traveling wave. The tests results show that the suppression effect on the amplitude of the voltage travelling wave will not remarkably change when the length of the magnetic-rings is not shorter than 0. 5 m, while the steepness will decrease along with the increase of the length of the rings. The ferrite rings have a better suppression effect than amorphous ones when the length of the magnetic-rings is not shorter than 1 m. The tests results indicate that it is feasible in principle to suppress VFTO in UHV GIS with magnetic-rings, and ferrite rings should be preferentially selected.关键词
特高压(UHV)/气体绝缘组合电器(GIS)/特快速暂态过电压(VFTO)/磁环/抑制/铁氧体/非晶材料Key words
ultra high voltage (UHV)/ gas insulated switchgear (GIS)/ very fast transient overvoltage (VFTO)/magnetic-ring/ suppression/ ferrite/ amorphous material分类
信息技术与安全科学引用本文复制引用
关永刚,张猛,岳功昌,张希捷,刘卫东..磁环抑制特高压GIS设备中特快速暂态过电压的模拟试验[J].高电压技术,2011,37(3):651-657,7.基金项目
国家自然科学基金(50907037),国家重点基础研究发展计划(973计划)(2011CB209405). （50907037）
