PowerWalker VFI 100K CPG 3/3 BX, Руководство пользователя

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● Make sure that the utility input & output wiring is correct. The current spec, color, position, connection
and conductance reliability of the wires needed be checked carefully. Make sure the L/N is correct, not
reverse or short-circuited.
2-6. UPS Installation for Parallel System
The section introduces how to install and set up the multiple UPSs to run parallel UPS system.
Warning:

The input harmonic current distortion will be between 3% and 4.5% in parallel UPS operation.

You need one parallel kit for every two UPS systems.
2-6-1. Input and Output Wiring
1. When install the parallel system, the length of input wires (R, S, T, N) in the one of the UPS parallel system
must be equal to another UPS input wires. Likewise, the length of output wires (R, S, T, N) must also be in
equal length. Otherwise, it will cause the unbalance current on output load.
2. Refer to section “2-5. Single UPS Installation” about the input and output wiring and battery wiring
methods in User Manual.
Dual input wiring in parallel system