High voltage outdoor substation

The substation has at least one outdoor busbar ( 11, 12 ) as well as at least two switch bays which can be connected to the busbar and at least one encapsulated, gas-insulated, arrangement of switchgear modules ( 30 ) which is arranged in one of the switch bays. This switchgear arrangement contains at least one disconnector module (DS) and at least one circuit breaker module (CB). An installation module (MM) is arranged between the disconnector module and the circuit breaker module and allows lateral removal of at least one of the two switchgear modules (DS, CB). This substation is distinguished by high availability, since each of the most severely loaded components of the encapsulated switchgear arrangement, that is to say the disconnector module and the circuit breaker module, can be removed from the substation by lateral removal without having to change the position of the other components. Once the removed component has been replaced, the complete substation availability can be reproduced quickly and at low cost.