VACUUM VALVE

摘要

In order to provide a vacuum valve in which a high-voltage live shunt portion is completely insulatedly protected and enable that a plurality of vacuum valves can be arranged into a compact unit, the vacuum valve has the shunt portion disposed within the vacuum vessel between a movable electrode and an insulating operating rod hermetically extending through the vacuum vessel. The vacuum vessel, together with the stationary and movable side terminals, is embedded within a substantially rectangular parallelopiped mold resin insulator. The outer shape of the switching operating device is substantially the same as the axial projection of the mold resin insulator of the vacuum valve to obtain a vacuum valve assembly of a substantially rectangular parallelopiped configuration. Three of the vacuum valve assemblies may be arranged side by side in parallel to form a one-piece three phase unit, and the mold resin insulator may be individual or one-piece mold. <IMAGE>