AC Isolator Switch

GW7 Series AC isolator switch shall be applied to switching of the HV transmission equipment with rated frequency 50Hz when no load is applied to the HV line and electric isolation of the HV electric equipments, such as the HV bus, the breaker, etc. to be overhauled from the charged HV circuit.

This series of disconnector is the three-column horizontal rotating double-fracture type disconnectors and composed of the base, the supporting insulator, the main conductive dynamic cotnact and the main conductive static contact; and the earthing switches can be added on one side or two sides. Moreover, the main switch and the earthing switch can be applied to three-phase linked operation or split-phase operations by using the electric mechanism or the manual mechanism.

The vertical transmission rod shall drive one supporting insulator of the disconnector to rotate when the operating mechanism of the main switch runs; and the three-phase operating insulator shall be driven to rotate by using one set of intersected four-bar linkage structure in the base; therefore, opening and closing of the main conductive part can be realized.

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