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Study on very fast transient overvoltage caused by operating 500kV GIS disconnector
Author(s): 
Pages: 11-15
Year: Issue:  1
Journal: Hunan Electric Power

Keyword:  隔离开关GISVFTO断路器;
Abstract: 针对气体绝缘封闭式开关设备(GIS)中快速暂态过电压(VFTO)产生的原因、出现的种类、对GIS本身以及对外部设备的危害等问题,对某水电站500kV GIS建立了系统的仿真模型,利用电磁暂态仿真软件ATP-EMTP,计算分析了隔离开关在3种典型操作方式时在主变压器线圈上引起的VFTO,并提出了防止VFTO的运行操作要求.
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