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hgis 66 kv gis switchgear Recovery enervac

Calculation of Very Fast Transient Overvoltages in GIS ...en.cnki.com.cn/Article_en/CJFDTOTAL-GDYJ200211001.htmThis paper presents the calculation results of very fast transient overvoltages (VFTO). The calculation are carried out using EMTP for operation of disconnect switch in 500 kV GIS of Tian Huangping pumped storage power plant. The paper also describes the factors that influence overvoltages. Otherwise this paper analyze the reason why the counters of surge arrester acted frequently and the harm ...

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