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UPS5000-E-(40 kVA-320 kVA)
User Manual
Figure 2-14 Conceptual diagram of an N+X parallel system
2.5.3 Dual-Bus System
A dual-bus system consists of two independent UPS systems. Each of these UPS systems in
turn consists of one or more UPSs connected in parallel. The dual-bus system is highly
reliable and is suitable for loads with multiple input terminals. You can install a static transfer
switch (STS) to start the bus synchronization controller (BSC), while the STS is optional, and
the BSC is a standard configuration. Of the two UPS systems, one is a master system, and the
other is a slave system. The UPS systems work in normal mode or bypass mode.
shows the conceptual diagram of a dual-bus system.
Figure 2-15 Conceptual diagram of a dual-bus system
Issue 10 (2015-09-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 Overview
Figure 2-15
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