Patent ID: 7492057

Claim:
A high reliability DC power distribution system, comprising: a first AC power source; a second, emergency AC power source; at least one AC to DC converter operationally connected to said first and second AC power sources and operationally connected to provide power to a DC collector bus; at least one DC energy storage system operationally connected to said DC collector bus, wherein said DC energy storage system provides sufficient ride-through power to said DC collector bus upon loss of said first AC power source to enable said second, emergency AC power source to come on line; and a busway comprising not less than four bus bars, in pairs, said busway being independent of said DC collector bus and operationally connected to said DC collector bus and having a plurality of power drops directly to equipment or to equipment racks having DC-to-DC power converters connected thereto, wherein each pair of bus bars in said busway is operationally connected to a separate DC power source and wherein both bus bars of each pair are operationally connected to the same DC power source, and said busway enables utilizing plug-in modules for at least two DC power sources.