| 摘要 |
The uninterrupted power supply system, comprises a plurality of uninterrupted power supply devices which load single-phase AC input voltages onto a battery, when the operating mode is in the normal mode, and the battery power is converted to single-phase AC output voltages when the operating mode is in the off mode. When the configuration mode is in the parallel mode, each of the plurality of uninterrupted power supply devices receives a common single-phase AC input voltage, and a common single-phase AC output voltage is discharged. When the configuration mode is in the three-phase mode, the plurality of uninterrupted power supply devices provide at least three uninterrupted power supply devices, and each of the at least three devices receives a three-phase AC input voltage independent of the other phase voltages, and three-phase AC output voltages of different phases are discharged. |
