Switching device
AssigneeABB Schweiz AG
InventorsGabriel Lantz, Matthias Bator, Markus Abplanalp, Ralf-Patrick Suetterlin
Life of this patent
Estimating the term…
Abstract
A switching device for low-voltage or medium-voltage applications including: one or more electric poles; for each electric pole, at least a fixed contact and at least a movable contact, each movable contact being reversibly movable between a coupled position, at which the movable contact is coupled with a corresponding fixed contact, and an uncoupled position, at which the movable contact is separated from the fixed contact, wherein a separation gap is present between the movable contact and the fixed contact, when the movable contact is in the uncoupled position. The switching device includes, for each electric pole, at least an arc-diverting element made of electrically insulating material.
Claims20
A switching device for low-voltage or medium-voltage applications comprising:
- one or more electric poles;
- for each electric pole, at least a fixed contact and at least a movable contact, each movable contact being reversibly movable between a coupled position, at which said movable contact is coupled with a corresponding fixed contact, and an uncoupled position, at which said movable contact is separated from said fixed contact, wherein a separation gap is present between said movable contact and said fixed contact, when said movable contact is in said uncoupled position;
- and
- for each electric pole, at least one arc-diverting element made of electrically insulating material, each arc-diverting element of the at least one arc-diverting element being biased towards a corresponding movable contact and switchable between an inactive position, at which said arc-diverting element is not interposed between said movable contact and a corresponding fixed contact, and an active position, in which at least a portion of said arc-diverting element is interposed between said movable contact and said fixed contact at the separation gap between said movable contact and said fixed contact,
- wherein said arc-diverting element switches from said inactive position to said active position when said movable contact moves from said coupled position to said uncoupled position, and
- wherein said arc-diverting element switches from said active position to said inactive position in response to a movement of said movable contact along a contact face of the at least a portion of said arc-diverting element when said movable contact moves from said uncoupled position to said coupled position, wherein the movement of said movable contact along said contact face displaces the at least a portion of said arc-diverting element out of the separation gap between said movable contact and said fixed contact.
Dependencies are inferred from the claim text.