Split-type gas insulated switchgear

The invention discloses a split-type gas insulated switchgear. A bus chamber is internally provided with a plug-in bus and the plug-in bus is combined with an internal taper in a gas box in a plug-in way; the internal taper is connected with a static contactor at a line feeding end of an isolation and grounding three-position switch; the static contactor at the line feeding end of the isolation and grounding three-position switch is connected with one end of an insulation screw rod and the other end of the insulation screw rod is connected with a static contact at a grounded end of the isolation and grounding three-position switch; the insulation screw rod is connected with a screw rod transmission mechanism and a movable contactor of the isolation and grounding three-position switch is matched with the insulation screw rod through internal screw threads; the movable contactor of the isolation and grounding three-position switch is connected with a line discharging end of the movable contactor of the isolation and grounding three-position switch; and a vacuum circuit breaker is arranged inside the gas box. The split-type gas insulated switchgear provided by the invention is rational in structure, convenient for overhauling and good in product performance.