Manual de operaciones
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3
OPERATION OF ZGR SCALABLE 60 300 KVA
3.1 Operation Modes
ZGR SCALABLE 60 300 KVA is a double-conversion on-line UPS that may operate in the following alternative
modes:
Normal mode
The rectifier/charger derives power from the AC mains and supplies DC power to the inverter while floating and
boosting charge the battery simultaneously. Then, the inverter converts the DC power to AC and supplies the load
(Fig. 3-1).
Fig. 3-1 Normal mode
Battery mode (Stored Energy Mode)
If the AC mains input power fails, the inverter, which obtains power from the battery, supplies the critical AC load.
There is no power interruption to the critical load. The UPS will automatically return to Normal Mode when AC grid
recovers (Fig. 3-2).
Fig. 3-2 Battery mode
