Parallel Ups Operation; Parallel Machine Installation - ABB PowerValue RT G2 User Manual

22 A B B U P S P R O D U C T S A N D S O L U T I O N S
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5 .4 Parallel UPS Operation

5 .4 .1 Parallel machine installation

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5.4.1-1:
Up to 4 units can be paralleled. The outputs are paralleled to increase the load capacity of the power
Parallel system
system and for redundancy.
installation
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5.4.1-2
Parallel system
Wiring diagram
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5.4.1-1
For single UPS input breaker F2-1, F2-2, F2-3, F2-4. Please choose the same ratings of according Input/
output fuses in Table 2.
For the main input breaker F1 and main output breaker F4, pls select the ratings based on the
quantity of parallel units N(N=2, 3, 4), the rating calculation formula is F1=F4=F2-1*N.
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5.4.1-2