(57) A vacuum switchgear comprising: a casing; a vacuum switch, enclosed in the casing,
comprising a metal vessel covered with a solid insulator, the surface of the insulator
being covered with a conductive layer to be earthed, a pair of movable electrode and
a fixed electrode to constitute a main circuit, enclosed in the metal vessel; a first
condenser connected to the terminal on the solid insulator. A first electric connection
means and second connecting means are disposed to the casing, and the first connecting
means is connected to a first condenser and the second connecting means is connected
to the second condenser. A voltage indicator that indicates a status of vacuum of
the metal vessel and a status of power application to a main circuit of the switch
section is electrically connected to either the first or second connecting means.
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