BOXER SERIES80-120 KVA
INSTALLATION
AG-SD-37/ Publication Date: 19.10.2012/Rev. No:1/Rev. Date:16.11.2012
35
3.2 Parallel Setup
The product which you have bought can be operated in parallel; however, this feature is offered
as an option. Please contact your authorized dealer for parallel operation.
Parallel application should be made by authorized personnel assigned by
MAKELSAN!
In case of need of redundancy or more power, Boxer SERIES devices can be operated as parallel
up to the amount of 8. A principle scheme which shows a system in which two UPS are
connected in parallel is given below:
Input and output of more than one device are connected to each other; but definitely each
battery group is different from another, batteries cannot be used in common. The following
points should be considered while placement of devices in parallel system and their electrical
connections are made:
The devices which are connected in parallel must be from the same series and must have
the same rated power.
Devices must be running on the firmware with the same version and revision codes,
devices operating with old firmware must be updated.
Devices must be located as close possible as to each other (maximum 6 * 110 cm
paralleling cables.)
Each device must have its own neutral cable.
Each device must have its own ground cable.
Devices must be connected through the distribution board and phases must be properly
connected. (U
1
-U
2
-…-U
N
), (V
1
-V
2
-…-V
N
), (W
1
-W
2
-…-W
N
).
Same battery group must not be connected to more than one device
For equal current sharing, all cables with which the devices are connected to the board
must be equal in length and cross section.
