Benefits of GIS Solution to Improve Physical Security in High Voltage Substations

The compactness of Gas-Insulated Substations (GIS) allows their installation in building even at extra-high voltage levels, like 800 k V. This is one of the key options to consider when physical security is of primary concern. Substation can be totally blended within the landscape and gives little room to ill intentions. These integrations coupled with the development of digital technologies also reduce significantly the requirement for access to the equipment which improves the security aspects of the assets. This paper is giving various examples illustrating these aspects.