High speed limiting electrical switchgear device
AssigneeABB Schweiz AG
InventorsMarley Becerra, Stefan Valdemarsson, Maurizio Curnis, Alessio Bergamini, Henrik Breder
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AssigneeABB Schweiz AG
InventorsMarley Becerra, Stefan Valdemarsson, Maurizio Curnis, Alessio Bergamini, Henrik Breder
Estimating the term…
An electrical switchgear for fast limitation and interruption of fault currents includes a fixed electrode, a movable electrode having a contact portion and a repelling portion, a plurality of contact fingers, and a coil. The coil is arranged adjacent to the repelling portion to induce eddy currents therein, the coil and the fixed electrode being arranged on the same side of the movable electrode, and the repelling portion being movable relative to the coil. The coil has a first dimension between two of its opposite lateral ends and defines an area which corresponds to a majority of a surface area of the repelling portion. The repelling portion provides a continuous current path, having a dimension corresponding to the first dimension, for eddy currents induced by the coil, whereby the movable electrode is pivotally thrown in a direction away from the coil and the fixed electrode, thus providing a circuit trip.
An electrical switchgear device comprising:
Dependencies are inferred from the claim text.