【摘要】 结合拉西瓦水电站工程800 kV GIS的设计与应用,通过过电压研究和计算,合理选择800 kV GIS的绝缘水平;根据工程的具体特点,提出合理的布置要求;结合800 kV GIS的结构特点,提出分步耐压试验要求;通过对VFTO的计算和研究,提出抑制措施;参考以往GIS安装经验,提出采用微正压防尘间的安装措施。现拉西瓦水电站800 kV GIS已顺利投入运行,且现场耐压试验和其他试验皆一次顺利通过,说明GIS的设计和制造满足工程要求。更多还原

【Abstract】 The insulation class of 800 kV GIS in Laxiwa Hydropower Station is chosen scientifically by over-voltage research and calculation,the layout requirements are presented according to the specific characteristics of the project,the step-voltage test requirements are proposed after considering the structure of GIS,the restraining measures are raised through calculation and study on VFTO,and the micro pressure measures for installation are raised in the experience of past.The on-site over-voltage tests and other tests of Laxiwa 800 kV GIS have all passed in the first try and the GIS has been successfully put into operation.更多还原