14
SALICRU
Note:
The installing method of bypass module is the same as the
power module.
6.3. BATTERY
The battery set can be based between 36 and 44 blocks con-
nected in serial, but it will always be an even number due to
the internal structure of the equipment, which needs a mid tap
or central point (neutral) of them. At the same time, the back up
time together with the required power to feed the loads estab-
lishes the needed capacity of the battery in Ah.
In Fig. 21, “N” means the total quantity of battery blocks con-
nected in serial, being able to select it among the figures above
stated.
Fig. 21.
Battery string wiring diagram
Danger:
The battery terminal voltage is of more than 400Vdc, please
follow the safety instructions to avoid electric shock hazard.
Ensure the positive, negative, neutral electrode is correctly con-
nected from the battery unit terminals to the breaker and from
the breaker to the UPS system.
6.4. CABLE ENTRY
Cables can enter the UPS cabinet from the top. Cable entry is
made possible through a blanking plate fitted at the top of the
equipment. The cable entry is shown in Fig.22.
1- Signal Cables
2- Power Cables
3- Blanking plate
Fig. 22.
Cable entry