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Mitigation of Transient Overvoltages Generated Due to Switching Operations and Lightning in Gas-Insulated Substation (GIS) Without Extra Limiter
Iranian Journal of Electrical & Electronic Engineering
Gas-insulated substations (GIS) have different specifications in proportion to air-insulated substations. Transformer failures related to lightning and switching are often reported in the gas insulated substation (GIS). This problem is the voltage magnifications due to reflections of switching and lightning surges at various junctions within the GIS. Thereby overvoltages in GIS are more important than air-insulated substation. There are methods to suppress the stresses created by lightning andfatcat:zrexop4czbf2lputbdiiaza4ty