Huawei UPS2000-G User Manual page 129

UPS2000-G-(6 kVA–20 kVA)
User Manual (Lead-Acid Battery)
Issue 23 (2024-03-15)
NO TICE
1. The UPS2000-G-15KRTL/20KRTL can connect to an external battery
string (40 batteries in the standard configuration, and an even number
of 32 to 40 batteries are supported). The neutral wire is connected to
the middle point of the battery string. For example, if there are 40
batteries, the neutral wire is connected to the negative terminal of the
twentieth battery.
2. When an external battery string is connected, install a DC circuit
breaker (63 A, 600 V DC) between the battery string and the UPS.
3. When an external battery string is connected, connect positive
terminals in series by using the two poles of the DC circuit breaker.
4. Connect the 15 kVA/20 kVA UPS batteries to the UPS battery ports.
One UPS battery port can have only one OT terminal installed. After
connecting cables, install the UPS battery port cover.
Figure 6-7 Installing battery cables
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External battery packs
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