Transient Ground Potential Rise in Gas Insulated Substations - Experimental Studies
作者： N. Fujimoto , E.P. Dick , S.A. Boggs , G.L. Ford
关键词: Electrical equipment 、 Mechanics 、 Switchgear 、 Sulfur hexafluoride 、 Electrical engineering 、 Materials science 、 Transient (oscillation) 、 High voltage 、 Electric power transmission 、 Enclosure 、 Ground plane
摘要: The very rapid dielectric breakdown of SF6 (eg, during the operation disconnect switches in gas-insulated substations) generates steep-fronted travelling waves which couple to exterior enclosure surface at air/SF6 bushings and cause transient ground potential rise. These high voltage transients, can be 100 kV range, propagate from termination, along a transmission line defined by bus plane, toward switchgear. This paper presents theoretical experimental investigation phenomenon, basic mechanisms have been identified.
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