KR series
（
6
-
10kVA
）
user
’s manual
- 13 -
3
、
Working mode of overload (solid line is Energy flow of UPS) as shown in Fig.3.2-4.
PFC
DC/DC
DC/DC
PFC
Bypass Switch
Inverter
Load
Battery
Main(UPS2)
AC Input
Bypass Switch
Inverter
Battery
Main(UPS1)
Fig.3.2-4 Working mode of overload
4. Working mode of one machine abnormal (solid line is Energy flow of UPS) as shown in
Fig.3.2-5. Abnormal machine doesn’t have output, so supply power to load only by normal
machine.
PFC
DC/DC
DC/DC
PFC
Inverter
Battery
Load
Main(UPS2)
Bypass Switch
Bypass Switch
Inverter
Battery
Main(UPS1)
AC Input
Fig.3.2-5 Working mode of single machine abnormal
