Results 101 to 110 of about 229 (144)
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Experimental Research on Suppressing VFTO in GIS by Magnetic Rings
IEEE Transactions on Power Delivery, 2013Very-fast transient overvoltage (VFTO) is a serious threat to the insulation of extra-high voltage and ultra-high voltage power-system equipment and should be suppressed. A simpler and more reliable VFTO suppressing method than a shunt resistor is presented in this paper, which uses magnetic rings installed on the center conductor of gas-insulated ...
Yonggang Guan, Weijiang Chen
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Simulation of VFTO Suppression Methods for 1100kV GIS Substation
2019 IEEE 3rd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2019Disconnector switch operation in GIS will generate VFTO, which will harm the equipment. Because there are many limitations in field measurement, simulation can overcome the limitations of experimental research, which can replace test measurement to a certain extent. In this paper, three VFTO suppression methods are simulated in ATP-EMTP.
Qingquan Li
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Improved SVD-MPM Applied in Spectral Analysis of VFTO
2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE), 2022Xianqiang Li
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Statistical Analysis of VFTO Time Domain Modal Parameters
2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2023Qi Wang, Kang He, Yue Tong, Fanwu Chu
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Analysis of VFTO in 1000kV GIS
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON), 2020With the development of UHV (Ultra High Voltage) transmission technology, GIS(Gas Insulated Substation) is usually used at all levels of substations, but it will produce VFTO (Very Fast Transient Overvoltage)when operating its isolating switch. It has the characteristics of large amplitude, high frequency and fast fluctuation.
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Measurement And Analysis Of VFTO In a 750kV Substation
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Disconnector operations in GIS may generate very fast transient overvoltage (VFTO), which is characterized by its high peak value, short rise time, and high frequencies. Mostly, researches on VFTO are focusing on the apparatus involving in the active circuit. However, VFTO may pass through open devices by electromagnetic coupling. To measure VFTO under
Jian Jiang +6 more
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