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9. UPS INSTALLATION FOR PARALLEL CABINET SYSTEM
The chapter introduces how to install and set up the single cabinet system to parallel cabinet system.
Warning:
l
The input harmonic current distortion will be higher than 3% and less than 4.5% in parallel cabinet system.
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You need to order the parallel cable for this kind of application. The parallel cable is required for the
installation and operation.
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If you want to install the UPS to parallel cabinet system by yourself, installation must be under the
supervision of authorized engineers or service personnel.
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The parallel rack power capacity will be 90% of rated load
9-1 Input and Output Wiring
1. When installing the parallel cabinet system, the input wires (R, S, T, N) length of the cabinet must be equal to
another cabinet input wires. Likewise, the output wires (R, S, T, N) length of the cabinet must be equal to
another cabinet output wires. The same length of input and output wires of two cabinets are required.
Otherwise, it will cause the unbalance current of output load.
2. Refer to Chapter "3. Installation" about the input and output wiring and battery wiring methods.
9-2 Parallel Board Setting and Power Module Setting
9-2.1
Install Power Module of cabinet A
1.
Refer to Table 2-1 to set the module address.
2.
Refer to Table 9-1 to set the Cabinet.
9-2.2
Install Power Module of Cabinet B
1.
Refer to Table 2-1 to set the module address.
2.
Refer to Table 9-1 to set the Cabinet.
Figure 9-1 Parallel System Wiring with three Breaker
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