Substation Extension & Upgrading Experience

The design of extra high voltage (EHV) gas-insulated switchgear (GIS) bays varies depending on whether the substation is an extension to existing GIS bays. Additional GIS bays as extensions are often required in substations located in power generating stations and transmission networks. The Integrating GIS equipment as an extension bay to existing GIS requires special considerations in engineering, installation, and commissioning, including site testing. To design and integrate such extension bays, it is essential to understand the design of the existing GIS bus and parameters of bay configurations such as,