UPS5000-S-1200 kVA
User Manual
2 Overview
Issue 04 (2019-06-25)
Copyright © Huawei Technologies Co., Ltd.
35
Specifications
Dimensions (H x W x D): 175 mm x 264 mm x 40 mm
2.4 Typical configurations
Table 2-13
Typical UPS configurations
Configuration
Application Scenario
Single UPS
Supplies power to common loads.
1+1 Parallel
System
Supplies power to important loads in large-sized data centers. It
features high availability and strong transient overload capability.
Dual-bus system
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.
N (N>2) Bus
System
The N bus system is used to supply power to important loads, such as
large cloud computing centers and enterprise data centers, to ensure
high reliability.
The N bus system provides N power routes. A single point of failure
does not lead to a power failure, and therefore the N bus system
provides higher reliability than that of the single-route power supply
system. The reliability of the N bus system is slightly lower than that
of the 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 1+1 Parallel System
In a 1+1 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.