UPS5000-S-880 kVA
User Manual (CMI)
3 Installation
Issue 02 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
46
Table 3-1 lists only the common tools for installation and cable connection. For more dedicated tools
required, see the document for each component. Prepare tools based on site requirements.
3.1.3 Preparing Power Cables
The UPS can generate large leakage currents. A circuit breaker equipped with a residual
current device (RCD) is not recommended.
If multiple UPSs are connected in parallel, input and output power cables for each UPS
should have the same length and specifications.
The TN-C system is supported. If it is used, the input N and PE need to be short-circuited.
The current values in the table correspond to the 380 V system.
Table 3-2
Recommended cross-sectional areas for power cables
Item
880 kVA
Mains input
Mains input current (A)
1625
Recommended cross-
sectional area (mm
2
)
L1
4 x (4 x 240)
L2
L3
N
PE
240
Bypass input
Bypass input current (A)
1338
Recommended cross-
sectional area (mm
2
)
L1
4 x (4 x 240)
L2
L3
N
PE
240
Output
Output current (A)
1338
Recommended cross-
sectional area (mm
2
)
U
4 x (4 x 240)
V
W
N
PE
240
Battery input
Nominal battery discharge current (A)
1755