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US 11,538,645 B2Granted
Electric switch
AssigneeABB Schweiz AG
InventorJuuso Lilja
Life of this patent
Estimating the term…
Abstract
An electric switch including a frame, a first stationary contact, a roll element adapted to rotate relative to the frame, a rotating contact stationary fixed to the roll element, and an arc extinguisher plate system. The arc extinguisher plate system includes at least one first arc extinguisher plate for extinguishing an electric arc generated during an opening event between the first stationary contact and a first contact portion of the rotating contact. The at least one first arc extinguisher plate is fixed to the roll element.
Claims17
An electric switch comprising:
- a frame;
- a first stationary contact stationary fixed to the frame, and adapted to be connected to a power supply;
- a roll element adapted to rotate relative to the frame around a rotation axis between a first position and second position;
- a rotating contact stationary fixed to the roll element, and including a first contact portion such that in the first position of the roll element the first contact portion is electrically conductively connected to the first stationary contact, and in the second position of the roll element the rotating contact is disconnected from the first stationary contact, wherein electrically conductive connection between the first contact portion of the rotating contact and the first stationary contact is adapted to be closed and opened in a first contact zone;
- and
- an arc extinguisher plate system for extinguish electric arcs inside the frame, the arc extinguisher plate system including at least one first arc extinguisher plate for extinguishing an electric arc generated during an opening event between the first stationary contact and the first contact portion of the rotating contact,
- wherein the at least one first arc extinguisher plate is fixed to the roll element.
4 more elements
Dependencies are inferred from the claim text.