Normal Mode (Parallel) - AEG 80 / 120 kVA Operating Instructions Manual

2-5 Normal Mode (Parallel)

Protect 3.M 2.0 Series provides a parallel combination (up to 4 units) to get
redundancy or expand the total capacity.
CB3
CB2
RESERVE
MAIN
CB3
CB2
RESERVE
MAIN
Under this installation, the load is shared by two UPS units. If there is any problem in
one of them, the load will be entirely handled by the other. In case the load is greater
than one UPS can take, the UPS will shut down and then transfer all UPS to the
reserve mode (Refer to Fig. 2-5).
CB1
CB1
Fig. 2-5 Normal Mode (Parallel)
STS
CB5
STS
CB5
2-3
CB4
UPS1
CB4
UPS2
LOAD