Electric substation

摘要

An electric transmission and/or distribution substation connected to a multi-phase power line, comprising: a transformer having a tank which contains a magnetic core, electric windings and a first dielectric fluid; a switchgear device comprising at least one casing which contains an interruption unit having a first fixed contact and a first moving contact which can couple/uncouple to each other and are electrically connected to the transformer and to the power line and a second dielectric fluid, the casing being directly connected to and mechanically supported by the tank; and first actuation means which are operatively connected to the first moving contact.