Connecting Cables To Battery Packs For The Ups2000-G-15 Kva/20 Kva - Huawei ESS-240V12-9AhBPVBA Series Quick Installation Manual

Connecting Cables to Battery Packs for the UPS2000-G-15 kVA/20 kVA

1. A 15 kVA/20 kVA UPS with long backup time requires serial connection of two battery packs in
each group. A maximum of four groups with eight battery packs can be connected in parallel. If
more than two battery packs need to be connected to the 15 kVA/20 kVA UPS with long backup
time, the battery packs should be connected in parallel and then connected to the battery input
ports of the UPS, as shown in the following figure. Battery packs 1 and 2, battery packs 3 and 4,
battery packs 5 and 6, and battery packs 7 and 8 are connected in series respectively. Battery
packs 1, 3, 5, and 7 are connected in parallel. Battery packs 2, 4, 6, and 8 are also connected in
parallel.
A. Battery pack connections for a single 15 kVA/20 kVA UPS
B. Battery pack connections for parallel 15 kVA/20 kVA UPSs
2. If the UPS2000-G-15 kVA/20 kVA 1+1 parallel system does not share battery packs, the cable
connection methods for each UPS and battery pack in the parallel system are the same as those
in a single UPS system.
UPS
BATT.±240 V DC port
UPS 1
BATT.±240 V DC port
12
UPS 2
BATT.±240 V DC port