Gas insulated substation GIS

Abstract

Reliable and economical power transmission and distribution are key functions for the future electric power supply. Gas insulated switchgear is used in industrial areas to fulfil high-energy demands by space saving design with a minimum of cost. Only SF6 insulated switchgear is able to fulfil these requirements. SF6 switchgear installed in Canada in a 550 kV substation with 100 kA as the highest breaking capacity ever achieved in one of the steps of development since then. Consistent research and development and innovative energy led to the third generation of nowadays compact and overall optimized switchgear. The advantages of gas-insulated switchgear are its compact design and the modular system. The standardized modular structure is made to match the various customers specifications and allows to realize almost all substation configurations in compliance to them