This results in the following constellations with n+x technology:
1 + 0 | Use of 1 unit | max. 10, 15 or | No redundancy |
| | 20 kVA | | |
1 + 1 | Use of 2 units | max. 10, 15 | or | Single redundancy |
| | 20 kVA | | |
1 + 2 | Use of 3 units | max. 10, 15 or | Double redundancy |
| | 20 kVA | | (max. expansion level) |
2 + 0 | Use of 2 units | max. 20, 30 or | No redundancy |
| | 40 kVA | | |
2 + 1 | Use of 3 units | max. 20, 30 | or | Single redundancy |
| | 40 kVA | | (max. expansion level) |
3 + 0 | Use of 3 units | max. 20, 30 or | No redundancy (max. |
| | 40 kVA | | expansion level) |
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 is decreased or is completely eliminated. 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.
9.2Set-up / Connection of Parallel Operation Board
The mains connection of each individual UPS takes place in the same way as described in chapter 5.
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.
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