限制GIS中隔离开关操作引起过电压的研究  

Study on Suppression of Switching Overvoltage Caused by Operation of Disconnector in GIS

作　　者：阮全荣[1] 施围[1] 王亮[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《高压电器》2006年第1期18-20,24,共4页High Voltage Apparatus

基　　金：国家自然科学基金(快速暂态过电压下金属氧化物避雷器频率特性研究)资助项目(50577051)。

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。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.

关 键 词：GIS VFFO 并联电阻 隔离开关 

分 类 号：TM564[电气工程—电器] TM86