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GIS开关操作对二次设备骚扰抑制措施研究

ZOU Zhiyang,XIA Yu,ZHOU Hualiang,WU Min,MIAO Jiasen, XU Zheng

Highlights of Sciencepaper Online（2023）

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Abstract
为研究气体绝缘变电站(gas insulated substation,GIS)隔离开关操作引发特快速暂态过电压(very fast transient overvoltage,VFTO)对就地二次设备影响及抑制措施,本文介绍了GIS隔离开关操作对就地二次设备骚扰的测试方法,针对VFTO骚扰特性重点阐述了就地二次设备主回路抑制VFTO骚扰的设计实现方法,提出了就地二次设备加强互感器绝缘强度、机箱分区屏蔽设计、电源多级滤波等措施,通过VFTO电磁暂态试验平台验证了抑制措施的有效性.
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Key words
electrical engineering,isolating switch,very fast transient overvoltage （VFTO）,VFTO disturbance characteristics,local secondary equipment,port test
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