Medium voltage switchgear using the technique of break in vacuum

摘要

the present invention relates to an apparatus for power outage in medium voltage phase with at least two switches, each switch having a disconnect switch, the apparatus is characterized in that it includes a bypass circuit which has mpoule. (9) for the cut is placed.the vacuum bulb (9) being able to be operated through one or the other of several actuation means (12,13,14) associated respectively with different isolating switches (5,6,7), in such a way that the derivation is not in steady state, and run by the only when a power disconnecting switches (5,6,7) began its opening movement.a gradual transfer of power to the line with the isolating switch (5) being opened to the bypass line, and the moving parts of said actuating means (12,13,14) are connected mechanically and electrically to one another by a rod of the states (18).