中国电机工程学报2011，Vol.31Issue(31)：38-47,10.
特高压气体绝缘开关设备中特快速瞬态过电压特性的试验研究
Experimental Research on the Characteristics of Very Fast Transient Overvoltage in Ultra High Voltage Gas Insulated Switchgear
摘要
Abstract
Very fast transient overvoltage（VFTO） generated during switching of disconnector in gas insulated switchgear（GIS） may threaten the safety operation of electric equipment,the influence is more serious with the increase of power system voltage and it is preeminent in ultra high voltage（UHV） system.To master the characteristics of VFTO in UHV GIS,lots of experiments by switching of GIS disconnectors were carried out in two VFTO test circuits of UHV GIS and the test results of VFTO were statistically analyzed in this paper.The waveform characters,striking numbers,frequency components and residual voltage distribution of full VFTO waveforms,the waveform characters and oscillation factor distribution of single striking waveform,the characteristics of VFTO magnitudes were proposed.The suppression of VFTO by damping resistor in GIS disconnector was illustrated.The achieved characteristics of VFTO in UHV GIS have been the basis for further VFTO study on simulation and insulation coordination etc.关键词
特高压/气体绝缘开关设备/特快速瞬态过电压/波形特性/概率特性/阻尼电阻Key words
ultra high voltage（UHV）/gas insulated switchgear（GIS）/very fast transient overvoltages（VFTO）/waveform performance/statistical property/damping resistor分类
信息技术与安全科学引用本文复制引用
陈维江,姚涛,王森,卢江平,吴军辉,张希捷,李文艺,李心一,李志兵,孙岗,戴敏,刘卫东,李成榕,王磊,王浩,陈国强..特高压气体绝缘开关设备中特快速瞬态过电压特性的试验研究[J].中国电机工程学报,2011,31(31):38-47,10.基金项目
国家重点基础研究发展计划项目（973项目)（2011CB209405) （）
国家电网公司科技项目（SGKJJSKF[2009]776))~~ （）
