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US 11,742,161 B2Granted
Rotary diaphragm in vacuum interrupter switch
AssigneeS&C Electric Company
InventorsLeo Caro, Michael R. Maroney, Thomas J. Dyer, Nicholas Seng
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AssigneeS&C Electric Company
InventorsLeo Caro, Michael R. Maroney, Thomas J. Dyer, Nicholas Seng
Estimating the term…
An insulating rotary diaphragm for a vacuum interrupter (VI) electrical switch. The insulating diaphragm is designed for use in underground or pad-mounted VI switches where an external lever is rotated by a line worker to manually open the switch. A torsional insulating rod is coupled between a switch actuator and the external lever, and the diaphragm maintains constant contact with the insulating rod and an outer housing when the lever and rod are rotated, thus ensuring adequate isolation between the actuator and the lever. The diaphragm deforms torsionally when the lever and rod are rotated. This configuration allows the actuator to be at medium voltage, eliminates the need for a translational insulating rod between the medium voltage switch components and the lever, and thereby reduces the overall length of the VI switch.
A manual opening mechanism for a vacuum interrupter (VI) switch, the mechanism comprising:
An insulating diaphragm for a vacuum interrupter (VI) switch, the diaphragm comprising a cylindrical inner hub and an outer wall connected by a continuous circumferential web, where the inner hub is bonded to an insulating rod in the VI switch and the outer wall is bonded to an inner surface of a switch housing such that the diaphragm electrically isolates components on one end of the insulating rod from components on the other end of the insulating rod, and a rotation of the insulating rod causes a torsional elastic deformation of the diaphragm, and where the diaphragm is constructed in a single piece of a material having an electrical resistivity greater than a prescribed resistivity value and an elastic modulus less than a prescribed modulus value.
A vacuum interrupter (VI) switch assembly comprising:
Dependencies are inferred from the claim text.