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2.3 The Connection of parallel system
Parallel
cable
Parallel
cable
Parallel
cable
UPS1
UPS2
UPS4
UPS3
Fig.2-3 parallel system
Make sure all the breakers are off and no output at the UPS output.
Extended connecting cables in Parallel :
When the UPSes are connected in parallel, the copper wires required to connect
with each UPS is minimum 10AWG for 6KVA and 8AWG for 10KVA, but the main
wire for linking all the UPS in parallel should be N* 10AWG or 8AWG (N refers to the
number of the UPS in parallel.)
Make sure the cables are as shorter as possible to reduce any possible noise
interference to data transfer.
CAUTION
Connect the L,N and E well
Configurate individual battery bank for each extended backup UPS in
parallel system. Also can be use common battery bank.
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