Adapter for arc resistant motor control center
AssigneeSiemens Industry, Inc.
InventorsAjit Pharne, Pablo A. Medina Rios, Reid Barkley, John Kaminski, Jeffrey D. Lord, Felix Galvan
Life of this patent
Estimating the term…
Abstract
The arc-resistant MCC is provided with either the expansion chamber or the plenum. Arc flashes create pressure. Different arc-resistant MCC bases are used depending on whether the expansion chamber or the plenum is to be attached, as the expansion chamber and the plenum deal with the created pressure in different ways and are accordingly attached to the MCC base in different ways.
Claims20
An adapter plate of a motor control center (MCC) configured such that a plenum and an expansion chamber are mountable to the adapter plate, the adapter plate comprising:
- a frame comprising:
- a top, a bottom, and at least one side, the at least one side at least partially defining an outer perimeter of the frame;
- at least one opening extending from the top to the bottom, the at least one opening at least partially defining an inner perimeter of the frame;
- a plurality of first connection locations disposed along the frame, the plenum being mountable to the adapter plate at the plurality of first connection locations;
- and
- a plurality of second connection locations disposed along the frame, the expansion chamber being mountable to the adapter plate at the plurality of second connection locations,
- wherein the plenum is mounted to the adapter plate via the plurality of first connection locations, or the expansion chamber is mounted to the adapter plate via the plurality of second connection locations.
A motor control center (MCC) usable with an expansion chamber and a plenum, the MCC comprising:
- an MCC housing comprising a top, a bottom, and at least one side;
- and
- an adapter plate supported by the housing at or adjacent to the top of the housing, the adapter plate comprising:
- a frame comprising a top, a bottom, at least one side, and at least one opening, the at least one side at least partially defining an outer perimeter of the frame, the at least one opening extending from the top to the bottom of the frame and at least partially defining an inner perimeter of the frame;
- a plurality of first apertures extending through the frame, the plenum being mountable to the adapter plate via the plurality of first apertures;
- and
- a plurality of second apertures extending through the frame, the expansion chamber being mountable to the adapter plate at the plurality of second apertures.
A method of manufacturing a motor control center (MCC), the MCC comprising an MCC housing and an adapter plate, the housing comprising a top, a bottom, and a plurality of sides, the adapter plate comprising a frame, the method comprising:
- mounting the adapter plate to the top of the MCC housing, an expansion chamber and a plenum being mountable to the adapter plate;
- and
- mounting the plenum to the adapter plate via a plurality of first fastener apertures spaced along the frame of the adapter plate;
- or
- mounting the expansion chamber to the adapter plate via a plurality of second fastener apertures spaced along the frame of the adapter plate.
Dependencies are inferred from the claim text.