10
EATON XSTORAGE COMPACT INSTALLATION MANUAL
P-164000907 - March 2022 www.eaton.com
00 Title
1. Door latch
2. Application controller touch screen display
3. Communication box (system controller)
4. Front panel of the communication box
5. Communication interfaces
6. Main switch
7. 20 kW ECM power modules
8. Maintenance bypass switch (MBS) (optional)
9. 230Vac Aux. voltage, F1 and F2
10. Battery breaker, CB1 (internal)
11. Master battery pack
12. Battery pack
3.4 Battery system
The battery system includes:
•
internal batteries (1 battery string)
•
external batteries (external battery rack with up to 2 battery strings)
A string includes 4 battery packs and 1 master battery pack, a total of 5 packs in series. The xStorage Compact unit
contains 1 battery string. The external battery rack can contain 1 or 2 strings (1 master battery pack and 4 or 9 battery
packs). With the external battery rack, the energy capacity can be tripled, see
Table 2: Number of battery strings based on
energy capacity.
Each battery pack is a combination of several battery modules, fuse and sensors internally connected to a battery
management system (BMS). The BMS manages the complete battery pack by monitoring its state, voltage, current and
temperature, calculating secondary data, SOC, reporting that data, protecting the battery, monitoring its environment
and balancing cells.
The main difference between the master battery pack and a battery pack is the capability to open the string contactor
in case of alarms/events on a string of battery packs. The master battery pack has two independent contactors for two
parallel battery strings.
ote:
N
It is prohibited to use various battery generations within the same DC power system.
Figure 4 . Backside of the battery pack
