Patent ID: 7800248
Filing Date: 2010-09-21
Classification: H02J,Y02B

Abstract:
1. A backup power system configured to be a UPS system, with a customer generation system and with a network monitoring device, comprising: a first connection node connected to the customer generation system and connected to at least one automatic disconnection switch including a first switch, said first switch being disposed between the customer generation system and a utility grid, and the first connection node further connected to a second switch connected to one or several loads; a second connection node connected to the second switch and connected to the load, the second connection node further connected to a third switch disposed between the utility grid and the load and the second connection node further connected to a fourth switch to which there is connected a standalone inverter with a storage device, a third connection node, connecting said first switch and said third switch to said utility grid, wherein the customer generation system is configured to supply an AC voltage to the system, in parallel to the utility grid, and wherein the grid monitoring device is configured to open the first switch upon a failure of the utility grid.