Dual-Bus System - Huawei UPS5000-E User Manual
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UPS5000-E-(50 kVA–300 kVA)
User Manual (50 kVA Power Modules)
2.4.3 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. Of the two
UPS systems, one is a master system, and the other is a slave system. This design
makes the dual-bus system highly reliable and suitable for loads with multiple
input terminals. An optional static transfer switch (STS) can be installed to start
the bus synchronization controller (BSC). The UPS systems work in normal mode
or bypass mode.
Figure 2-32 Conceptual diagram of a dual-bus system
Issue 15 (2022-01-30)
Copyright © Huawei Technologies Co., Ltd.
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