Breaker for high D.C. current or voltage applications, for instance industrial and/or railways applications
AssigneeMicroelectrica Scientifica S.P.A.
InventorsMarco Corna, Lorenzo Stendardi, Claudio Mondellini
Life of this patent
Estimating the term…
Abstract
An improved breaker for high current or voltage applications, for instance industrial and/or railways applications, is provided wherein a high current must be switched on/off or interrupted with high efficiency and extremely fast intervention times. The breaker may include a base portion including an activating mechanism including a holding mechanism and a release mechanism, an intermediate switching or breaking contact portion, including fixed contacts and movable contacts, and a top arc chute extinguishing portion covering the intermediate switching or breaking contact portion.
Claims14
A breaker for high current or voltage applications for switching or interrupting a high current on/off with high efficiency and fast intervention times, in industrial and/or railways applications the breaker comprising:
- a casing;
- a base portion in the casing, the base portion supporting:
- an activating mechanism for switching means including a holding mechanism and a release mechanism;
- an intermediate switching or breaking contact portion, including fixed contacts and movable contacts, and
- a top arc chute extinguishing portion covering the intermediate switching or breaking contact portion,
- wherein:
- the arc chute extinguishing portion is moveable with respect to the switching or breaking contact portion and is provided with external polar expansions that are coupled on both main sides of the breaker;
- further polar expansions being electrically coupled to the external polar expansions and linked to the intermediate switching or breaking contact portion as fixed part of the breaker.
Dependencies are inferred from the claim text.