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Statistical Analysis of VFTO Time Domain Modal Parameters
2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2023The phenomenon of very fast transient overvoltage (VFTO) is a matter of significant concern in industry. In view of the fact that VFTO lacks the overall identification of time-frequency domain parameters and statistical characteristic analysis.
Qi Wang, K. He, Yue Tong, F. Chu
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Analysis of GIS Insulation Fault Characteristics under VFTO
2024 3rd International Conference on Smart Grids and Energy Systems (SGES)Basin insulators are one of the rare faults with high probability in GIS equipment, especially the surface flashover of basin insulators, which poses a great threat to the safety of GIS operation.
Huan Wang, Hongbin Li, Xixiu Wu
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Improved SVD-MPM Applied in Spectral Analysis of VFTO
2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE), 2022Spectral characteristics of very fast transient overvoltage (VFTO) is of great significance to suppress the influence of harmful frequency components of VFTO.
K. He, Xianqiang Li, Qin Yan, Qi Wang
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Modeling and Analysis of VFTO Interference in Substation Isolation Switches
2023 5th International Academic Exchange Conference on Science and Technology Innovation (IAECST), 2023With the rapid development of the power system and continuous improvements in the power-related industries, the operational reliability advantages of GIS substations are gradually being recognized and applied.
Jia Lou +4 more
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Development and Experimental Research of Impedance Converter for VFTO Measurement
2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2022Very fast transient overvoltage (VFTO) is a special electromagnetic transient in gas-insulated switchgear (GIS). It is necessary to obtain the characteristics of VFTO to guide the insulation design of GIS and the electromagnetic protection of secondary ...
Zihan Teng +5 more
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GIS discharge induced by vibration, metal particles and VFTO
2021 IEEE Electrical Insulation Conference (EIC), 2021Some GIS break down after the disconnector is operated. The reason for this phenomenon is not clear. We believe that the vibration and VFTO caused by the disconnector action, as well as the metal particles inside the GIS, together cause this phenomenon ...
Weifeng Xin +8 more
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The Development of a Novel Spacer of GIS With VFTO Tolerance
IEEE Transactions on Dielectrics and Electrical InsulationMetal-enclosed gas-insulated switchgear (GIS) offers the advantages of a small footprint, high reliability, strong safety features, and convenient installation. As such, it has found widespread use in a variety of applications.
Zuodong Liang +6 more
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Research on Interferences of VFTO to Irregular Distributions of Secondary Side Cables
IEEE Transactions on Power Delivery, 2023In the digital era, the secondary equipment of power system is becoming more and more sensitive to electromagnetic interference. Gas insulated switchgear (GIS) in substations will generate very fast transient overvoltage (VFTO) after switching action ...
Yongji Wu +4 more
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Mechanical fault identification in GIS disconnectors with limited VFTO samples
Electric Power Systems ResearchYongzheng Zhu +4 more
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