Set-Up / Connection Of Parallel Operation Board - AEG PROTECT 1 Series Operating Instructions Manual

This results in the following constellations with n+x technology:
1 + 0 Use of 1 unit
1 + 1 Use of 2 units
1 + 2 Use of 3 units
2 + 0 Use of 2 units
2 + 1 Use of 3 units
3 + 0 Use of 3 units
The actively redundant parallel operation automatically switches
to power-increasing operation if the output power requirement
exceeds the UPS single block power, i.e. the degree of
redundancy
Conversely, the active UPS redundancy degree automatically
increases again when the power consumption decreases.
The connection normally takes place in the low-voltage main
distribution, which also contains the external manual bypass
and the following subdistribution of connected load circuits.
Such a parallel board can be purchased in a wall housing incl.
external HU as well as feeder and load distribution board from
AEG Power Supply Systems via your specialist dealer.
9.2

Set-up / Connection of Parallel Operation Board

The mains connection of each individual UPS takes place in the
same way as described in chapter 5.
max. 10, 15 or
20 kVA
max. 10, 15 or
20 kVA
max. 10, 15 or
20 kVA
max. 20, 30 or
40 kVA
max. 20, 30 or
40 kVA
max. 20, 30 or
40 kVA
is decreased
The three-phase mains connection secured for
each UPS must always have the same phase
sequence, i.e. all UPS units are supplied at the
input terminals L1, L2 and L3 by the same
phase each time (no mix!).
In UPS bypass mode, the phase L1 is used to
connect the single-phase load with the mains.
The central external manual bypass, which must
have an all-pole design, must also be supplied
by this phase L1.
No redundancy
Single redundancy
Double redundancy
(max. expansion level)
No redundancy
Single redundancy
(max. expansion level)
No redundancy (max.
expansion level)
or is completely
55
eliminated.