UPS5000-A-500 kVA
User Manual (e-shelter)
3 Installation
Issue 02 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
38
The nominal battery discharge current refers to the current of forty 12 V batteries at 480
V in standard configuration.
The maximum battery discharge current refers to the current when forty 12 V batteries in
standard configuration, that is, two hundred and forty 2 V battery cells (1.67 V/cell), stop
discharging.
The battery cable specifications are selected based on 40 batteries by default and
compatible with application scenarios with 30–50 batteries.
When the mains input and bypass input share a power source, configure mains input
power cables as input power cables.
−
Routing mode: Routing the cables over the cable ladder or bracket in a single layer
(IEC60364-5-52 middle E). The distances between cables must be greater than
twice the cable diameter.
−
The ambient temperature is 30°C.
−
The AC voltage loss is less than 3%, and the DC voltage loss is less than 1%.
−
90°C copper flexible cable.
−
The length of the AC power cables of a UPS is no longer than 30 m and DC power
cables no longer than 50 m.
When you connect power cables, comply with the tightening torque listed in the following
table to ensure secure connections and prevent safety risks.
Table 3-3
Power cable connector requirements
Connector Connection
Mode
Bolt Type Bolt Hole
Diameter
Bolt Length Torque
Mains input
connector
Crimped DT
terminals
M16
18 mm
50 mm
120 N·m
Bypass
input
connector
Crimped DT
terminals
M16
18 mm
50 mm
120 N·m
Battery
input
connector
Crimped DT
terminals
M16
18 mm
50 mm
120 N·m
Output
connector
Crimped DT
terminals
M16
18 mm
50 mm
120 N·m
Grounding
connector
Crimped DT
terminals
M12
N/A
35 mm
47 N·m