Hydraulic or pneumatic drive for actuating the movable switch contact of a medium and/or high-voltage power switch
AssigneeAsea Brown Boveri AG
InventorFerdinand Lutz
Life of this patent
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Abstract
A hydraulic or pneumatic drive for actuation of a movable switch contact of a medium and/or high-voltage power switch, especially an SF6-gas-insulated high-voltage power switch, includes a drive piston coupled to the movable switch contact. Fluid is delivered under pressure to the drive piston from a fluid reservoir configuration in order to perform one switching cycle having a given number of required switching operations. The fluid reservoir configuration has the given number of mutually separate independently acting storage chambers each having an energy content sufficient for a required switching operation.
Claims15
Hydraulic or pneumatic drive for actuation of a movable switch contact of a medium and/or high-voltage power switch, comprising a drive piston coupled to the movable switch contact, a fluid reservoir configuration, means for delivering fluid under pressure from said fluid reservoir configuration to said drive piston in order to perform one switching cycle having a given number of required switching operations, said fluid reservoir configuration having said given number of mutually separate independently acting storage chambers each having an energy content sufficient for a required switching operation.
Dependencies are inferred from the claim text.