Frequency converter with battery backup power: (figure 4)

Introduction (cont.)

rectifier-

chargerinverter

mains 1

load

battery

Frequency converter without backup power: (figure 5)

Fig. 4

rectifier-

chargerinverter

mains 1

load

Fig. 5

Frequency converters with backup power: (figure 6)

mains 1

rectifier- charger

rectifier- charger

rectifier- charger

inverter

battery

inverter

battery

inverter

load

battery

Parallel UPSs with SSC: (figure 7)

Note:

Up to 6 UPS (identical ratings) can be parallel-connected in this way.

Fig. 6

Q3BP

mains 2

Static Switch Cubicle

rectifier-

chargerinverter

 

 

 

 

 

battery

mains 1

 

 

rectifier-

 

 

 

 

 

load

 

 

 

 

 

 

 

 

charger

 

inverter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

battery

Fig. 7

6739380EN/JC - Page 7

Page 7
Image 7
APC 6739380EN/JC user manual Frequency converter with battery backup power figure