Patent ID: 8294297

Claim:
A scalable power distribution system comprising: a transformer coupled with a load; a first isolation switch connected to an input of the transformer; a second isolation switch connected to the input of the transformer; and a first uninterruptible power supply (UPS) connected to the first isolation switch; a second transformer coupled with the load; a third isolation switch coupled with the second transformer; and a fourth isolation switch coupled with the second transformer, wherein a second uninterruptible power supply (UPS) is connectable with the second isolation switch, wherein each of the first uninterruptible power supply (UPS) and the second uninterruptible power supply (UPS) comprise a rectifier and an inverter and are configured to supply alternating current (AC) power to the load through the transformer, the second uninterruptible power supply (UPS) and the first uninterruptible power supply (UPS) synchronizable at the transformer, and wherein the second uninterruptible power supply (UPS) is connected to the first isolation switch and wherein the first uninterruptible power supply (UPS) is connected to the third isolation switch.