Starting The Parallel System - Huawei UPS2000-G-6KRTS User Manual

UPS2000-G- (6 kVA-20 kVA)
User Manual

5.3.2 Starting the Parallel System

● The configured number of batteries on the LCD must match the actual number.
● Only UPSs of the same model can be connected in parallel.
● Before you start the parallel system, ensure that UPS output circuit breakers are
● When a 15 kVA/20 kVA UPS parallel system shares a battery string, set the
● Check that parallel parameters have been synchronized.
● When UPSs are connected in parallel, the output parallel power cables of each
● In the parallel system that uses the TN-C power distribution system, install four
● Before starting a parallel system, ensure that all circuit breakers on the output
● To prevent triggering overload protection, start the loads with higher power
Starting the Parallel System in Normal Mode
Ensure that all check items in the section "Check Before Power-On" have been
checked.
Perform the following steps to start the parallel system for the UPSs to work in
normal mode.
Step 1 Switch on the external battery circuit breaker (if any) or connect battery cables.
Step 2 Check that the input voltage is normal.
Step 3 Switch on the following circuit breakers of the UPS: mains AC input circuit
breakers K
circuit breakers K
Issue 18 (2021-07-16)
CA UTION
When the actual number changes, change the configured number. If the
configured number is less than the actual number, the battery lifespan is
shortened. If the configured number is greater than the actual number, battery
leakage may cause a fire.
NO TICE
both ON.
same battery string capacity and charge current for each UPS.
UPS must be at least 1 m long and the length deviation must be less than
±10%. The four cables must be connected at the remote end.
magnetic rings on the PE cable on each UPS, bind the four magnetic rings
together using binding tape, and secure them in the nearest place.
side are OFF, and do not start loads.
and then loads with lower power.
1 and K 2, general mains AC input circuit breaker K
m m
1 and K
b
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2, and general bypass AC input circuit breaker K
b
5 Operations
, bypass AC input
m
.
b
95