Removable contactor drawer
AssigneeAmerican Mine Research, Inc.
InventorRobert GRAF
Life of this patent
Estimating the term…
Abstract
A removable contactor drawer including a transitional chamber receivable in a fixed casing. The transitional chamber including electrical components for an electrical feeder circuit. The fixed casing being designed to be mounted and used within a power distribution center and has input connectors for the incoming electrical power. Source power may be channeled through the electrical components via the fixed casing and delivered to a power outlet on a front face of the transitional chamber. The transitional chamber may optionally contain equipment to monitor and report operational faults within the contactor drawer. A front-mounted motor drive allows a remotely located operator to perform removal of the transitional chamber while under power, thus providing protection against the danger of arc flash.
Claims11
A removable contactor drawer configured to be utilized in an electrical distribution system, the contactor drawer comprising:
- a fixed casing including at least one main bus input connector configured to receive input electrical power from a source;
- a transitional chamber including at least one switch and an electrical interface configured to operatively engage with at least one main bus input connector of the fixed casing, said transitional chamber being movable relative to the fixed casing;
- and
- an arc flash suppression device in at least one of the fixed casing and the transitional chamber configured to suppress arc flash during engagement or disengagement of the transitional chamber and the fixed casing while the contactor drawer is electrically charged.
Dependencies are inferred from the claim text.