Characteristic Analysis on Suppressing VFTO in GIS by Ferrite

Xiang Gen Gan; Shui Ping Zhong; Sheng Wei; Dong Bao Yang

doi:10.4028/www.scientific.net/AMR.834-836.385

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 834-836Characteristic Analysis on Suppressing VFTO in GIS...

Characteristic Analysis on Suppressing VFTO in GIS by Ferrite

Abstract:

When disconnecting switches were operated,Very Fast Transient Overvoltage (VFTO) did great harm to power systems and their equipments in Gas Insulated Substations (GIS). Although VFTO can be suppressed by a few of known methods, there were some problems. Low voltage simulation tests show that putting ferrite rings around a disconnecting generatrix can damp traveling wave propagation and suppress VFTO in GIS. This method is economic and practical. We had analyzed ferrite characteristics of suppressing VFTO and got hold of ways of calculating ferrite size in GIS. Investigation shows that ferrite characteristics and sizes have a great effect on suppressing VFTO.

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Periodical:

Advanced Materials Research (Volumes 834-836)

Pages:

385-389

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.834-836.385

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Online since:

October 2013

Authors:

Xiang Gen Gan, Shui Ping Zhong, Sheng Wei, Dong Bao Yang

Keywords:

Characteristic, Ferrite Size, Suppressing VFTO

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