Medium or high voltage switch having spherical-bearing-type mechanical connection
AssigneeABB Power Grids Switzerland AG
InventorsChristoph Wirth, Dominique Kurrus
Life of this patent
Estimating the term…
Abstract
A medium or high voltage switch including a moveable contact element and a stationary contact element is described. Therein, a moveable-contact guiding portion of the moveable contact element and a stationary-contact guiding portion of the stationary contact element are shaped for establishing a spherical-bearing-type mechanical connection between each other, thereby aligning a center of the moveable-contact guiding portion with a center of the stationary-contact guiding portion while allowing an angular flexion between the moveable and stationary contact elements. Furthermore, at least one of the stationary-contact guiding portion and the moveable-contact guiding portion is electrically insulating.
Claims20
A medium or high voltage switch comprising:
- a moveable contact element being moveable along an axis for opening and closing the medium or high voltage switch, the moveable contact element comprising
- a moveable-contact contacting portion, and
- a moveable-contact guiding portion,
- a stationary contact element comprising
- a stationary-contact contacting portion configured to make an electrical connection with the moveable-contact contacting portion when the medium or high voltage switch is closed, and
- a stationary-contact guiding portion, the stationary-contact guiding portion being configured to engage with the moveable-contact guiding portion when the medium or high voltage switch is closed, wherein
- at least one of the stationary-contact guiding portion and the moveable-contact guiding portion is electrically insulating, and wherein
- the moveable-contact guiding portion and the stationary-contact guiding portion are shaped for establishing, when the moveable-contact guiding portion and stationary-contact guiding portions are engaged with each other, a spherical-bearing mechanical connection between the moveable-contact guiding portion with the stationary-contact guiding portion, thereby aligning a center of the moveable-contact guiding portion with a center of the stationary-contact guiding portion while allowing an angular flexion between the moveable contact element and the stationary contact element.
Dependencies are inferred from the claim text.