Patent attributes
In a network data center, a plurality of modules provide power to equipment racks. Each of the modules has a plurality of taps which are connected by internal switching elements to power mains through an internal power distribution bus, such that each of the modules can switch any of the plurality of taps to two of the three phases of power. Each of the equipment racks has a multi-branch power distribution unit, branches of which may be connected together to receive power from the same tap. The number of branches in each multi-branch power distribution unit is configurable to adapt to the power requirements of the equipment rack. Power and control signals for the logic and control circuits of the modules are supplied separately from the power mains by a coordinating computer which has the modules connected in a redundant ring topology.
