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ASME Press Select Proceedings

International Symposium on Information Engineering and Electronic Commerce, 3rd (IEEC 2011)

Editor
C. B. Povloviq
C. B. Povloviq
National Technical University of Ukraine
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C. W. Lu
C. W. Lu
Huangshi Institute of Technology
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ISBN:
9780791859759
No. of Pages:
562
Publisher:
ASME Press
Publication date:
2011

Very fast transient overvoltage (VFTO) may cause damage to the insulation of electric equipments in gas insulated substations. It is generated by multi-reignitions between the contacts of disconnector, when the disconnector is closing or opening. So it is important to calculate the VFTOs caused by multi-reignitions of disconnector. In this paper, it is pointed out that there is a linear relationship between the VFTOs originated by the previous multi-reignitions when the disconnector is closing or the last multi-reignitions when the disconnector is opening. Combined this conclusion with the phenomenon of multi-reignitions, the VFTOs caused by multi-reignitions are calculated. Finally, the...

Abstract
Keywords
Introduction
The Phenomenon of Multi-Reignitions
Model of VFTOs Caused by Multi-Reignitions
Factors of Maximum Magnitude of VFTO
Conclusion
Acknowledgments
References
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