一种限制GIS暂态地电位升高的措施  

A New Approach to Suppressing the Transient Grounding Potential Rise in GIS

作　　者：李六零[1] 胡攀峰[1] 何涛[2] 邱毓昌[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049 [2]天荒坪抽水蓄能电站,浙江安吉313302

出　　处：《高压电器》2005年第2期113-115,共3页High Voltage Apparatus

摘　　要：用EMTP程序对用不同的氧化锌避雷器限制GIS内快速暂态过电压的效果进行了计算,并给出了快速暂态过电压与暂态地电位升高的简单算式。同时对某GIS的隔离开关操作引起的暂态地电位升高数值进行了现场测量。提出了用氧化锌避雷器阀片限制GIS暂态地电位升高的措施。This paper uses EMTP program to calculate the effects of suppression on very fast transient overvoltages in GIS when employing different ZnO Surge Arresters, and gives a simple formula of transient grounding potential rises versus very fast transient overvoltages. A real GIS's transient grounding potential rise caused by operation of disconnector was measured on site. Following the results, this paper proposes to suppress the GIS's transient grounding potential rises by using ZnO element.

关 键 词：暂态地电位升高 快速暂态过电压 氧化锌避雷器:气体绝缘开关设备 

分 类 号：TM591[电气工程—电器]