Huawei UPS5000-H-400 kVA User Manual page 107

UPS5000-H-(400 kVA-800 kVA)
User Manual (100 kVA Power Module)
Prerequisites
● In a parallel system, cables with the same phase sequence must have the same
● Ensure that the phase sequences of the mains input, bypass input, and output
● Connect power cables according to port silk screens.
Procedure
Step 1 Ground each UPS in a parallel system separately, and connect power cables and
battery cables.
Step 2 Choose a parallel mode and connect power cables to the parallel system based on
site requirements.
The typical scenario of a 1+1 parallel system is used as an example.
Figure 6-57 Conceptual diagram of a 1+1 parallel system
A dual-bus parallel system consisting of two parallel subsystems is used as an
example.
Issue 02 (2021-04-22)
NO TICE
specifications (cross-sectional area and length) to ensure current equalization
between UPSs.
power cables of each UPS are the same.
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6 Installation
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