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34006452EN/AC - Page 7
Introduction
– Frequency converter with battery backup power: (figure 4)
Fig. 4
– Frequency converter without backup power: (figure 5)
Fig. 5
– Frequency converters with backup power: (figure 6)
Fig. 6
– Parallel UPSs with SSC: (figure 7)
Note:
Up to 6 UPS (identical ratings) can be parallel-connected in this way.
Fig. 7
mains 1
rectifier-
charger
battery
inverter
load
mains 1
rectifier-
charger
inverter
load
mains 1
rectifier-
charger
inverter
load
battery
rectifier-
charger
inverter
battery
rectifier-
charger
inverter
battery
Static Switch Cubicle
Q3BP
rectifier-
charger
battery
inverter
mains 1
rectifier-
charger
battery
inverter
load
mains 2