Passive arc management system with a flue chamber
AssigneeSchneider Electric USA, Inc.
InventorTimothy Robert Faber
Life of this patent
Estimating the term…
Abstract
In an electrical distribution cabinet a mechanism providing quick, reliable, passive arc blast control has a flue chamber surrounding the likely arc site such as an electrical connection point. The flue chamber provides a flue channel which lengthens the arc and attenuates the current and temperature until the arc is extinguished. Preferably, the flue chamber and channel are formed of opposable open-faced polyhedral structures, one fitting inside the other. The mechanism is particularly suited for draw-out circuit breaker connections in a switch gear cabinet.
Claims18
An arc management system with a passive arc attenuator, comprising:
- a) electrical equipment having exposed electrical conductors;
- b) a cabinet separating the electrical equipment from an outside environment;
- c) a flue chamber within the cabinet and surrounding the electrical conductors, the flue chamber having a flue channel formed therein for the attenuation of an arc therein.
An arc management system with a passive arc attenuator, comprising:
- a) electrical equipment having exposed electrical conductors;
- b) an cabinet separating the electrical equipment from the outside environment;
- c) a flue chamber within the cabinet and surrounding the electrical conductors, the flue chamber having:
- i) a first chamber portion open on one face, and
- ii) a second chamber portion open on one face and sized for covering the first chamber portion,
- d) the first chamber being movable to a position within the second chamber so as to form a flue channel therebetween for the attenuation of arc blast heat and current.
An arc management system with a passive arc attenuator, comprising:
- a) electrical equipment having exposed electrical conductors;
- b) a cabinet surrounding the electrical equipment;
- c) a flue chamber surrounding the exposed electrical conductors,
- the flue chamber having a flue channel formed therein for the attenuation of an arc from the electrical conductors.
Dependencies are inferred from the claim text.