Disconnect switch
AssigneeSiemens Aktiengesellschaft
InventorDieter Lorenz
Life of this patent
Estimating the term…
Abstract
A disconnect switch has a fixed tubular contact and a tubular contact movable into connection with the fixed contact. A movable auxiliary contact within the movable tubular contact can travel into connection with a stationary auxiliary contact on the fixed tubular contact. The switch has short pre-breakdown times at higher voltages and includes a support shaft carried by the movable tubular contact and at least one sleeve which is arranged on the shaft. A pantograph-like connecting member has one end fastened to the sleeve and the other end coupled to the movable auxiliary contact. Elements of a mechanical control device are also fastened to the outside of the sleeve and, in cooperation with fixed extrusions of the outer switchhousing, cause the sleeve to rotate when the movable tubular contact is moved.
Claims7
A disconnect switch comprising:
- a stationary outer part;
- a fixed tubular contact, spaced apart from the stationary outer part;
- a fixed auxiliary contact connected to the fixed tubular contact;
- a movable tubular contact guided in the stationary outer part and movable into connection with the fixed tubular contact;
- a movable auxiliary contact disposed in the movable tubular contact to move into connection with the fixed auxiliary contact;
- a support shaft coupled to the movable tubular contact;
- a first sleeve rotatably mounted on the support shaft;
- a pantograph-like connecting member having one end connected on the outside of the sleeve and the other end connected to the movable auxiliary contact;
- and
- a mechanical control mounted on the outside of the sleeve and responsive to motion of the movable tubular contact to rotate the sleeve.
Dependencies are inferred from the claim text.