Huawei UPS2000-G-6KRTLL - Parallel System Operations; Starting a Parallel System

Figure 5-7 EPO cable connection on a single UPS
5.3 Parallel System Operations
5.3.1 Starting a Parallel System
NO TICE
● A parallel system of 6 kVA UPSs can share or not share battery strings.
● Before starting the parallel system, ensure that the external output circuit
breakers for each UPS are ON. In addition, ensure that the output neutral wires
of all UPSs are connected together.
● Check that parallel system parameters have been synchronized.
● Before starting the parallel system, ensure that all circuit breakers on the
output side are OFF, and do not start loads.
● To prevent triggering overload protection, start the loads with higher power
and then loads with lower power.
Figure 5-8 AC input, output, and battery wiring diagram (two parallel UPSs
sharing batteries)
UPS2000-G-6KRTLL
User Manual 5 Operations
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 99