High Voltage Gas Insulated Switchgear, Hv Gis, For Single Or Three Phase Operation

Abstract: HV GIS for single or three phase operation, with a plurality of disconnector modules associated to each phase, whereby the disconnector modules are filled with gas and each comprise a disconnector for connecting a feeder to a main busbar. The disconnector modules are interconnected with the main busbar associated to each phase and extend through all disconnector modules forming a main housing for the respective phase and a plurality of auxiliary modules associated to each phase. The auxiliary modules are also filled with gas and are interconnected with an auxiliary busbar to increase the current carrying capability of the HV GIS, which is associated to each phase and extends through all auxiliary modules to form an auxiliary housing for the respective phase. At least two of the disconnector and auxiliary modules of the respective phase comprise a coupling connection between the main and auxiliary busbars.

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