【摘要】 根据GIS的结构特点,对一种带有并联电阻的隔离开关抑制VFTO的机理、作用进行了数值分析。通过研究可知, 由于隔离开关分合闸电阻有抑制VFTO的作用,GIS中所产生的VFTO的幅值不高,这对于GIS以及连接设备和二次控制装置的绝缘不会构成危害,但是GIS中的VFTO频率很高,对带有绕组的电气设备的绝缘水平,如变压器,会带来一定的影响。更多还原

【Abstract】 Base on the structural characteristic of GIS, the mechanism and effects of disconnector with shunt resistor to depress VFTO are simulated and analyzed in this paper. Through the research, it is concluded that because the closing resistor of the disconnector can depress VFTO, the amplitude of VFTO in GIS is low, so it will not endanger the insulation of GIS, including its connecting equipment and control device in secondary side. But because the frequency of VFTO in GIS is very high, the insulation of the equipment with windings, such as transformers, can be influenced.更多还原