Three-position electrical switch having a switching element that is movable in axial translation
AssigneeAlstom
InventorVladimir Gutalj
Life of this patent
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Abstract
The three-position, gas-insulated, metal-clad electrical switch inside a metal casing includes first and second break contacts, a fixed grounding contact, and a switching element that is movable in an axial direction to interconnect the break contacts. The first and second break contacts and the fixed grounding contact are superposed in the axial direction, and the switching element is moved by a drive rod which passes through the fixed grounding contact, thereby enabling the switching element to occupy each of the three switching positions including a grounding position in which it connects the first break contact to the fixed grounding contact.
Claims6
A three-position, gas-insulated, electrical switch inside a metal casing, the switch comprising first and second break contacts, a fixed grounding contact, and a switching element that is movable in an axial direction to interconnect said break contacts, wherein the first and second break contacts and said fixed grounding contact are superposed in said axial direction, and wherein said switching element is moved by a drive rod which passes through the fixed grounding contact, such that said switching element is operative to occupy each of three switching positions including a grounding position in which said switching element connects the first break contact to the fixed grounding contact.
Dependencies are inferred from the claim text.