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UPS5000-S-600 kVA
User Manual (Singapore, Three-phase, Three-wire)
Configuration
Dual-bus system
2.4.1 Single UPS
This series uses a modular design in which multiple power modules are connected
in parallel to deliver a high loading capacity. If a single power module is faulty, the
other power modules continue working. When the load power is small, even a
single UPS can provide redundant capacity, which ensures high reliability.
2.4.2 Parallel System
In a parallel system, the mains input, bypass input, and AC output terminals
between cabinets are connected in parallel. Energy control modules (ECMs) on
each UPS are connected over parallel cables. The parallel connections synchronize
the UPS outputs to supply power to loads. If one UPS fails, the other UPSs
continue supplying power to loads.
Figure 2-24 Conceptual diagram of an N+X parallel system
Issue 01 (2021-04-14)
Application Scenario
The dual-bus system is suitable for scenarios where high
availability requirements are posed for power supply. The
dual-bus system supplies power to important loads in large-
and medium-sized equipment rooms and data centers.
In addition to common parallel system advantages, the dual-
bus system also provides outstanding availability and
eliminates bottleneck failures. However, configuration of the
dual-bus system is complex.
NO TE
A 1+1 parallel system is a typical configuration. You can set the number of requisite UPSs
and redundant ones on the LCD or WebUI.
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2 Overview
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