Patent ID: 6881917

Claim:
A vacuum switchgear comprising; a vacuum container; a cylindrical body having openings at both ends thereof, the body being electro-conductive and to be grounded, diameter of said openings being nearly the same as that of a diameter of the cylindrical body; a ground switch having a movable electrode and a fixed electrode; at least one switch having a movable electrode and a fixed electrode, wherein the switch functions as any one of a load switch for turning on and off an operating current, circuit breaker for shut-off in case of an accident and a disconnector for switching circuits; and external connecting conductors to be electrically connected to the outside of the vacuum container, wherein said ground switch, said switch and said conductors are accommodated in the said vacuum container; said ground switch, and said external connecting conductors are electrically connected in said vacuum container; and said openings of said cylindrical body being air-tightly sealed with a pair of lids to constitute the vacuum container, the lids being welded to the cylindrical body after assembly and inspection of the parts in the vacuum container.